http://103.153.58.85/ind/index.php?action=history&feed=atom&title=Delhi%3A_ClimateDelhi: Climate - Revision history2026-10-03T13:13:56ZRevision history for this page on the wikiMediaWiki 1.19.2http://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=139647&oldid=prevJyoti: /* Heat Islands */2026-06-17T09:45:40Z<p><span dir="auto"><span class="autocomment">Heat Islands</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>On average, the difference in temperature in a heat island compared to the coolest part of the city can be 4 to 5 degrees Celsius. Solutions lie in better urban planning and some immediate interventions. “Greenery to reduce anthropogenic heat, more reflective surfaces, enough space between buildings, greenery on buildings are some of the possible solutions,“ added Mohan.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>On average, the difference in temperature in a heat island compared to the coolest part of the city can be 4 to 5 degrees Celsius. Solutions lie in better urban planning and some immediate interventions. “Greenery to reduce anthropogenic heat, more reflective surfaces, enough space between buildings, greenery on buildings are some of the possible solutions,“ added Mohan.</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">[[Category:Climate</del>/<del class="diffchange diffchange-inline">Meteorology|D</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=Land surface temperature</ins>/ <ins class="diffchange diffchange-inline">recurring heat stress=</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">DELHI: CLIMATE]]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==2015- 2024==</ins></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[<del class="diffchange diffchange-inline">[Category</del>:India<del class="diffchange diffchange-inline">|D </del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[<ins class="diffchange diffchange-inline">https</ins>:<ins class="diffchange diffchange-inline">//epaper.indiatimes.com/article-share?article=22_05_2026_002_004_cap_TOI Priyangi.Agarwal, May 22, 2026: ''The Times of </ins>India<ins class="diffchange diffchange-inline">''</ins>]</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[<del class="diffchange diffchange-inline">Category</del>:<del class="diffchange diffchange-inline">Places</del>|<del class="diffchange diffchange-inline">D </del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[<ins class="diffchange diffchange-inline">File</ins>: <ins class="diffchange diffchange-inline">Land surface temperature, 2015- 2024.jpg</ins>|<ins class="diffchange diffchange-inline">Land surface temperature, 2015- 2024 <br/> From</ins>: <ins class="diffchange diffchange-inline">[https://epaper.indiatimes.com/article-share?article=22_05_2026_002_004_cap_TOI Priyangi.Agarwal, May 22, 2026: ''The Times of India'']|frame|500px</ins>]]</div></td></tr>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:Climate/Meteorology|DDELHI: CLIMATEDELHI: CLIMATE</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">New Delhi : Between 2015 and 2024, over 75% of Delhi’s land area has remained under recurring heat stress, with industrial belts, dense residential neighbourhoods and unplanned settlements emerging as some of the city’s hottest zones, according to a new report by the Centre for Science and Environment (CSE).</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> Using Landsat data from 2015 to 2024 and Census 2011 data, the centre conducted a geospatial analysis to identify areas persistently crossing a land surface temperature (LST) threshold of 45 degrees Celsius. The study found that the LST reached as high as 60.7 degrees Celsius during the summer months in locations such as Indira Gandhi International Airport or in areas with unsown agricultural lands and barren stretches.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> “The newly-built Bharat Mandapam and the redeveloped East Kidwai Nagar housing complex, as well as the World Trade Centre in Safdarjung and Netaji Nagar, are equally heat-stressed. As Delhi continues to redevelop, it will need to actively find ways to ensure that the new built-up fabric does not add to the entrapment of heat and instead, mitigates it,” stated the report titled ‘Making Delhi heat-resilient: a roadmap with the focus on vulnerable groups.’ The areas that have persistently crossed the heat stress threshold over the decade are the Walled City and its extensions, Karol Bagh, Kashmere Gate ISBT, and Connaught Place (Inner Circle) in central Delhi. South-west, west and north-west Delhi – with dense neighbourhoods such as Uttam Nagar, Palam, Dabri, Najafgarh, Kanjhawala, Budh Vihar, Bawana and Narela – also feature among the hotspots.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline"> Places such as Bawana Industrial Area, Sultanpur Dabas, Puth Khurd, Anand Parbat Industrial Area, Khera Kalan, Mayapuri, Libaspur, Balli Maran, Mangolpuri Industrial Area Phase II and Mundka Industrial Area have also emerged as hotspots. In addition, several residential areas are recording an LST ranging from 44 degrees Celsius to 50 degrees Celsius. Hotspots in south Delhi include Mahipalpur, Aya Nagar, Bhikaji Cama Place, AIIMS, RK Puram, Kotla Mubarakpur, Sarai Kale Khan, parts of Green Parkand Greater Kailash, East of Kailash and Lajpat Nagar.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">“This shows that big commercial and institutional complexes, industrial areas, high-density low-rise residential colonies and unplanned self-constructed colonies face the brunt of the heat in Delhi. However, the Yamuna river remains a heat reliever for the city, with LST around it hovering at 33 degrees Celsius, but its impact is like that of a drop in an ocean,” said the study.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">At the ward level, the report found 153 of Delhi’s 272 wards had more than 75% of their area exposed to recurring heat stress, while 82 wards had over 90% of their area under heat stress. Of these, 17 wards have their entire area under heat stress, including Turkman Gate, Ballimaran, Bazar Sitaram, Baljit Nagar, Babarpur, Karawal Nagar East, Bindapur, Budh Vihar, Madhu Vihar, Shiv Vihar and Kirari Suleman Nagar. Delhi’s natural cooling systems are weakening, the study noted. Green cover reduced from 25.4% in 2014 to 14.1% in 2024 while waterbody footprints shrank from 1.3% to 0.9%. The study also revealed that the city’s ability to cool down at night -- diurnal cooling -- has reduced by 9%. </ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The analysis stressed that addressing heat vulnerability requires an active management approach that combines city-level infrastructural cooling strategies, like green-blue infrastructure and cool materials, with targeted, group-specific actions to safeguard the most exposed populations. It recommended that Delhi must formally recognise heat as a disaster to utilise the State Disaster Response Fund f or relief and mitigation. </ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">“Delhi should mandate and prioritise thermally efficient roofs in industrial areas and markets as they can reduce temperatures by up to 5 degrees Celsius,” said the report.</ins></div></td></tr>
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</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=113257&oldid=prevJyoti: /* Heat Islands */2021-07-05T20:12:09Z<p><span dir="auto"><span class="autocomment">Heat Islands</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 20:12, 5 July 2021</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">==1972-2014 ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[https://epaper.timesgroup.com/Olive/ODN/TimesOfIndia/shared/ShowArticle.aspx?doc=TOIDEL%2F2021%2F07%2F03&entity=Ar01006&sk=5FF904D1&mode=text  Jasjeev Gandhiok, July 3, 2021: ''The Times of India'']</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[File: Urban heat islands in Delhi- a 1972-2014 study.jpg|Urban heat islands in Delhi: a 1972-2014 study <br/> From: [https://epaper.timesgroup.com/Olive/ODN/TimesOfIndia/shared/ShowArticle.aspx?doc=TOIDEL%2F2021%2F07%2F03&entity=Ar01006&sk=5FF904D1&mode=text  Jasjeev Gandhiok, July 3, 2021: ''The Times of India'']|frame|500px]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Feeling warmer than normal in some parts of Delhi-NCR compared with other areas? Might not just be the temperature or the humidity alone. It could all be down to the concretised and urbanised landscape around you. The urban heat island effect makes localities hotter than others due to factors like concretisation, population density and the density of the landuse area. A new study has found parts of the city recording an increase in the surface and canopy-level heat index of 4-6 degrees Celsius by 1.30am.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">The study, conducted by the Centre for Atmospheric Sciences, IIT Delhi, analysed change in the land use and land cover pattern over the last five decades on the basis of Delhi’s maps between 1972 and 2014 to determine how urbanisation had impacted the urban heat island effect in the Central National Capital Region. The study assessed both the surface heat island intensity (SHI), measured at ground level, as well as the canopy layer heat Island intensity (CLHI), measured in the air. It found that with increasing urbanisation, around 500 square km of Delhi is now experiencing 4-6 degrees Celsius of CLHI at night, something that was non-existent in the 1970s. A dense 23 sq km of Delhi records a CLHI greater than 5 degrees Celsius.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">On average, Delhi’s nearsurface temperature has also increased by 1.02 degrees Celsius due to an increase in the urban-land use from 1970 to 2010s. NCR too has seen similar changes, with increases in SHI and CLHI of 4-6 degrees Celsius during the day and 2-4 degrees Celsius at night.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">The study also looked at thermal comfort and discomfort due to excess heating and determined that comfortable hours had reduced over the last five decades. “The extremely uncomfortable hours have increased from an average of 10 hours a day to 12–13 hours a day. Similarly, comfortable hours have decreased from around three hours per day to around an hour per day,” says the study, co-authored by Ankur Prabhat Sati and Shweta Bhati.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Manju Mohan, lead author of the study that was published in Urban Climate, said the increase in temperatures is maximum by 1.30am and lowest at 10.30am. “Through the day, surfaces heat up the maximum by 1.30am. In comparison, readings collected at 2:30pm showed an increase in UHI by 2-3 degrees Celsius. By 10.30am, cool night-time temperature has released the heat and makes morning ideal,” explained Mohan, who added that Gurgaon, Dwarka and Faridabad all showed high UHI readings, while locations like Delhi Ridge (north) and Asola Bhatti Wildlife Sanctuary showed little increase in both surface or CLHI at night.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Mohan, in past studies to determine UHI in Delhi, has established locations such as Connaught Place and Sitaram Bazaar as being the hottest, with an average UHI index of over 4 degrees Celsius. JNU and Vasant Kunj had lowest UHI at 1-2 degrees Celsius.</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==2010-13==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==2010-13==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places|D DELHI: CLIMATE</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places|D DELHI: CLIMATE</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Climate/Meteorology|DDELHI: CLIMATEDELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:India|D DELHI: CLIMATEDELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Pages with broken file links|DELHI: CLIMATEDELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Places|D DELHI: CLIMATEDELHI: CLIMATE</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=113244&oldid=prevPdewan: /* In 2017 */2021-07-03T23:29:57Z<p><span dir="auto"><span class="autocomment">In 2017</span></span></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 23:29, 3 July 2021</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==<del class="diffchange diffchange-inline">In 2017</del>==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==<ins class="diffchange diffchange-inline">2010-13</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">[[Category:Pages with broken file links|DELHI: CLIMATE]]</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places|D  </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places|D  </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Climate/Meteorology|DDELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:India|D DELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Pages with broken file links|DELHI: CLIMATE</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Places|D DELHI: CLIMATE</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>DELHI: CLIMATE]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>Pdewanhttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=113243&oldid=prevPdewan: /* Heat Islands */2021-07-03T23:27:31Z<p><span dir="auto"><span class="autocomment">Heat Islands</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 23:27, 3 July 2021</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">==In 2017==</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>On average, the difference in temperature in a heat island compared to the coolest part of the city can be 4 to 5 degrees Celsius. Solutions lie in better urban planning and some immediate interventions. “Greenery to reduce anthropogenic heat, more reflective surfaces, enough space between buildings, greenery on buildings are some of the possible solutions,“ added Mohan.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>On average, the difference in temperature in a heat island compared to the coolest part of the city can be 4 to 5 degrees Celsius. Solutions lie in better urban planning and some immediate interventions. “Greenery to reduce anthropogenic heat, more reflective surfaces, enough space between buildings, greenery on buildings are some of the possible solutions,“ added Mohan.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Climate/Meteorology|D</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:India|D </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Pages with broken file links|DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:Places|D </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">DELHI: CLIMATE]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Statistics, month-wise=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Statistics, month-wise=</div></td></tr>
</table>Pdewanhttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=76460&oldid=prevJyoti: /* Heat Islands */2017-07-30T23:12:05Z<p><span dir="auto"><span class="autocomment">Heat Islands</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 23:12, 30 July 2017</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=Heat Islands=</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[File: Urban heat island, some facts.jpg|Urban heat island, some facts; [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]|frame|500px]]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=76459&oldid=prevJyoti at 23:11, 30 July 20172017-07-30T23:11:25Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places |D ]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Places |D ]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category: Climate/Meteorology |D]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category: Climate/Meteorology |D]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=March=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2007-12, low temperatures==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=Heat Islands=</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=Why-it-feels-hotter-in-CP-than-most-05062017002056  Jayashree Nandi & Jasjeev Gandhiok, Jun 05 2017, Why it feels hotter in CP than most parts of city, The Times of India]</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">'''Delhi's Heat Islands Warmer Than Other Spots By Almost 10°C'''</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">While the summer heat is unbearable for everyone, some parts of the capital may be far warmer than the average. The difference between the coolest part of the city and one of these “heat islands“ could be as high as between 5 and 10 degrees Celsius. Several scientific studies have raised alarm bells about the impact of what they call the “urban heat island“ effect.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Now a latest study (to be published in July) by the CSIRNational Physical Laboratory (NPL) and Indian Meteorological Department (IMD) has compared the average temperature difference between Safdarjung and NPL area near Pusa road between 2010 and 2013 to compute the urban heat island (UHI) and found that Safdarjung experienced an UHI ranging from 0.2 to 3 degrees.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">High UHI was observed in morning time as compared to day and night times, with the highest magnitude ranging from 2.8 to 3 degrees Celsius in spring, autumn and winter seasons at morning between 7am and 9 am. “The analysis revealed that UHI effect exists in the Safdarjung area (see graphic) due to presence of more builtup surface and relative lack of vegetation areas as compared to NPL area,“ the study stated.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The study added that a UHI of magnitude 0.2 -3 degrees is capable of rising electricity demand by of 37.87 GWh to 1,856 GWh over the base electricity supply of the city and corresponding rise in CO2 emissions would be 0.031-1.52 million tonnes. In simple terms, the energy demand could rise by as much as 6% if the UHI is 3 degrees. Similarly , Connaught Place in central Delhi is among the hottest parts of the city. The authors pointed out that the UHI effect is linked to land use. Satellite pictures show NPL has much larger area of vegetated land (66.6%) as compared to Safdarjung Bhikaji Cama Place(32.8%) while the built up area in Safdrajung is much large, 67.2%, compared to 33.4% in NPL.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">IIT-Delhi's Centre for Atmospheric Sciences has done a number of studies on UHI trends in Delhi. In their 2012 study IIT-Delhi had found very high UHI in certain areas in the range of 8.6 to 10.7 degrees. The green and riverside areas had a low UHI (3.1to 6.9 degrees).</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Another trend scientists are noticing is an increase in night-time temperature. “We are noticing that the difference between day time and night time temperature is reducing.During the day the solar heat is absorbed and then it takes very long to escape at night. This is because of more built up area which is trapping the heat. Satellite pictures show that more and more area is getting affec ted,“ said Manju Mohan, IITDelhi professor. AC exhausts also have a major role to play.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">On average, the difference in temperature in a heat island compared to the coolest part of the city can be 4 to 5 degrees Celsius. Solutions lie in better urban planning and some immediate interventions. “Greenery to reduce anthropogenic heat, more reflective surfaces, enough space between buildings, greenery on buildings are some of the possible solutions,“ added Mohan.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=Statistics, month-wise=</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=March<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2007-12, low temperatures<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>See graphic</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>See graphic</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2017, rise of 13 degrees in 10 days==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2017, rise of 13 degrees in 10 days<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://timesofindia.indiatimes.com/city/delhi/delhi-temperatures-shoot-up-13-degrees-in-10-days/articleshow/57801947.cms  Amit Bhattacharya, Delhi temperatures shoot up 13 degrees in 10 days, Mar 24, 2017, The Times of India]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://timesofindia.indiatimes.com/city/delhi/delhi-temperatures-shoot-up-13-degrees-in-10-days/articleshow/57801947.cms  Amit Bhattacharya, Delhi temperatures shoot up 13 degrees in 10 days, Mar 24, 2017, The Times of India]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2" class="diff-lineno">Line 38:</td>
<td colspan="2" class="diff-lineno">Line 60:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In 2015, the variation was much larger - around 16-17 degrees C over the 31-day period. The previous year, 2014, showed an altogether different pattern. Maximum temperatures in the beginning of the month were around 21 degrees C while the month-end temperatures were in the 30-31 degree range.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In 2015, the variation was much larger - around 16-17 degrees C over the 31-day period. The previous year, 2014, showed an altogether different pattern. Maximum temperatures in the beginning of the month were around 21 degrees C while the month-end temperatures were in the 30-31 degree range.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=April=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=April<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2012==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2012<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Temperatures in April, Delhi, 2007-12.jpg|Temperatures in April, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]  </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Temperatures in April, Delhi, 2007-12.jpg|Temperatures in April, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2" class="diff-lineno">Line 55:</td>
<td colspan="2" class="diff-lineno">Line 77:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Dr R K Jenamani, director in-charge IGI Met, added that the WDs also moved much faster this time, assisted as they were by strong westerly winds.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Dr R K Jenamani, director in-charge IGI Met, added that the WDs also moved much faster this time, assisted as they were by strong westerly winds.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=June=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=June<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2012-16==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2012-16<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''See graphic'''</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>'''See graphic'''</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Heavy rainfall, 2012-16.jpg|Heavy rainfall, 2012-16; [http://epaperbeta.timesofindia.com/Gallery.aspx?id=28_06_2017_004_014_011&type=P&artUrl=5mm-of-rain-is-enough-to-trigger-chaos-28062017004014&eid=31808 The Times of India], June 28, 2017|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Heavy rainfall, 2012-16.jpg|Heavy rainfall, 2012-16; [http://epaperbeta.timesofindia.com/Gallery.aspx?id=28_06_2017_004_014_011&type=P&artUrl=5mm-of-rain-is-enough-to-trigger-chaos-28062017004014&eid=31808 The Times of India], June 28, 2017|frame|500px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=July=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=July<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2015==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2015<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Temperature in Delhi, July 2015.jpg|Temperature in Delhi: July 2015; Graphic courtesy: [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=July-surprise-Rain-kept-weather-mild-air-clean-01082015002040 ''The Times of India''], Aug 01 2015|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Temperature in Delhi, July 2015.jpg|Temperature in Delhi: July 2015; Graphic courtesy: [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=July-surprise-Rain-kept-weather-mild-air-clean-01082015002040 ''The Times of India''], Aug 01 2015|frame|500px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td colspan="2" class="diff-lineno">Line 78:</td>
<td colspan="2" class="diff-lineno">Line 100:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The maximum temperature during the month was 39.8 degrees C recorded on July 4. In contrast, July last year had six 40 degree-plus days. The unusually mild July weather this year was not without precedent. It closely resembled conditions experienced in 2013, when the highest July rainfall in 10 years was recorded in Delhi. The difference, however, was that a markedly different weather was expected in 2015, because it's an El Nino year.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The maximum temperature during the month was 39.8 degrees C recorded on July 4. In contrast, July last year had six 40 degree-plus days. The unusually mild July weather this year was not without precedent. It closely resembled conditions experienced in 2013, when the highest July rainfall in 10 years was recorded in Delhi. The difference, however, was that a markedly different weather was expected in 2015, because it's an El Nino year.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=August=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=August<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2015: August rainfall 21% below normal==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==2015: August rainfall 21% below normal<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=August-rainfall-was-21-below-normal-01092015004029 ''The Times of India''], Sep 01 2015</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=August-rainfall-was-21-below-normal-01092015004029 ''The Times of India''], Sep 01 2015</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Rainfall statistics, August 2015.jpg|Rainfall statistics, August 2015; Graphic courtesy: [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=August-rainfall-was-21-below-normal-01092015004029 ''The Times of India''], Sep 01 2015|frame|500px]]  </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Rainfall statistics, August 2015.jpg|Rainfall statistics, August 2015; Graphic courtesy: [http://epaperbeta.timesofindia.com/Article.aspx?eid=31808&articlexml=August-rainfall-was-21-below-normal-01092015004029 ''The Times of India''], Sep 01 2015|frame|500px]]  </div></td></tr>
<tr><td colspan="2" class="diff-lineno">Line 89:</td>
<td colspan="2" class="diff-lineno">Line 111:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>According to readings at the Safdarjung station, the month had 14 rainy days, three more than normal. Despite that, August ended with a high rain deficit mainly because there were hardly any spells of sustained heavy rain. The wettest day of the season (Aug 24) saw 56mm rainfall, hardly much for August. In fact, August has seen wetter days in each of the past 10 years.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>According to readings at the Safdarjung station, the month had 14 rainy days, three more than normal. Despite that, August ended with a high rain deficit mainly because there were hardly any spells of sustained heavy rain. The wettest day of the season (Aug 24) saw 56mm rainfall, hardly much for August. In fact, August has seen wetter days in each of the past 10 years.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>=December=</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>=December<ins class="diffchange diffchange-inline">=</ins>=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">=</ins>==Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016<ins class="diffchange diffchange-inline">=</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016.jpg| Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016 <br/> [http://epaperbeta.timesofindia.com/Gallery.aspx?id=19_12_2016_006_025_011&type=P&artUrl=Delhi-feels-real-chill-as-temp-drops-4C-19122016006025&eid=31808 ''The Times of India'']|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016.jpg| Maximum and minimum temperatures in Delhi, 12-18 Dec, 2016 <br/> [http://epaperbeta.timesofindia.com/Gallery.aspx?id=19_12_2016_006_025_011&type=P&artUrl=Delhi-feels-real-chill-as-temp-drops-4C-19122016006025&eid=31808 ''The Times of India'']|frame|500px]]</div></td></tr>
</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=75321&oldid=prevJyoti: /* July */2017-07-05T11:02:45Z<p><span dir="auto"><span class="autocomment">July</span></span></p>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 11:02, 5 July 2017</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Senior Met scientists attributed the unusual weather to about six western disturbances that affected northwest India in the second half of the month. “Normally WDs would have moved northwards by now and would not have affected northwest India this actively. However, so far the WDs have continued on their more southerly track and brought rain to the plains. Delhi has witnessed some amount of rain every alternate day since April 10 which has kept temperatures low this season,” said a senior scientist.  </div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Senior Met scientists attributed the unusual weather to about six western disturbances that affected northwest India in the second half of the month. “Normally WDs would have moved northwards by now and would not have affected northwest India this actively. However, so far the WDs have continued on their more southerly track and brought rain to the plains. Delhi has witnessed some amount of rain every alternate day since April 10 which has kept temperatures low this season,” said a senior scientist.  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Dr R K Jenamani, director in-charge IGI Met, added that the WDs also moved much faster this time, assisted as they were by strong westerly winds.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>Dr R K Jenamani, director in-charge IGI Met, added that the WDs also moved much faster this time, assisted as they were by strong westerly winds.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">=June=</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">==2012-16==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">'''See graphic'''</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[File: Heavy rainfall, 2012-16.jpg|Heavy rainfall, 2012-16; [http://epaperbeta.timesofindia.com/Gallery.aspx?id=28_06_2017_004_014_011&type=P&artUrl=5mm-of-rain-is-enough-to-trigger-chaos-28062017004014&eid=31808 The Times of India], June 28, 2017|frame|500px]]</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=July=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=July=</div></td></tr>
</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=74384&oldid=prevPdewan at 19:12, 15 June 20172017-06-15T19:12:12Z<p></p>
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<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[Category:Climate/ Meteorology |D ]]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[Category: Climate/Meteorology |D]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==2007-12, low temperatures==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>==2007-12, low temperatures==</div></td></tr>
</table>Pdewanhttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=71683&oldid=prevJyoti: /* March */2017-04-04T20:16:55Z<p><span dir="auto"><span class="autocomment">March</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2007-12==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==2007-12<ins class="diffchange diffchange-inline">, low temperatures</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>See graphic</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>See graphic</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>==2017==</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>==2017<ins class="diffchange diffchange-inline">, rise of 13 degrees in 10 days</ins>==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://timesofindia.indiatimes.com/city/delhi/delhi-temperatures-shoot-up-13-degrees-in-10-days/articleshow/57801947.cms  Amit Bhattacharya, Delhi temperatures shoot up 13 degrees in 10 days, Mar 24, 2017, The Times of India]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[http://timesofindia.indiatimes.com/city/delhi/delhi-temperatures-shoot-up-13-degrees-in-10-days/articleshow/57801947.cms  Amit Bhattacharya, Delhi temperatures shoot up 13 degrees in 10 days, Mar 24, 2017, The Times of India]</div></td></tr>
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</table>Jyotihttp://103.153.58.85/ind/index.php?title=Delhi:_Climate&diff=71682&oldid=prevJyoti: /* March */2017-04-04T20:15:24Z<p><span dir="auto"><span class="autocomment">March</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=March=</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]  </div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==2007-12==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">See graphic</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>[[File: Lowest temperatures in March, 2007-12.jpg|Lowest temperatures in March, 2007-12; Graphic courtesy: [ ''From the archives of the Times of India'']|frame|500px]]</div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">==2017==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">[http://timesofindia.indiatimes.com/city/delhi/delhi-temperatures-shoot-up-13-degrees-in-10-days/articleshow/57801947.cms  Amit Bhattacharya, Delhi temperatures shoot up 13 degrees in 10 days, Mar 24, 2017, The Times of India]</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">'''HIGHLIGHTS'''</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Delhi sees a whopping 13-degree rise in maximum temperatures in the past 10 days, with spring disappearing almost as soon as it arrived.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Wind circulation features at the moment suggest that the summer season has begun,“ said IMD spokesperson K Sathi Devi.</ins></div></td></tr>
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<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Such a rapid transition to summer is rather unusual.Such a rapid transition to summer is rather unusual.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">NEW DELHI: Light jackets have given way to T-shirts in the span of a week as weather in the capital has transitioned unusually rapidly from late winter to summer this year. Delhi saw a whopping 13-degree rise in maximum temperatures in the past 10 days, with spring disappearing almost as soon as it arrived.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Thursday's peak temperature was 37.4 degrees Celsius, seven notches above normal - the highest seen in March since 2010, when the mercury had hit 39.2 degrees on March 22. Just 10 days ago, the maximum had hovered around 24 degrees. Similarly, minimum temperatures have risen by around 9 degrees in this period.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Such a rapid transition to summer is rather unusual. The change has been all too sudden also because below normal temperatures prevailed till well after Holi this year, under the influence of a series of active western disturbances that brought rain and snow in the hills.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">"That influence has waned. At the same time, a wind pattern has formed that's causing heating in the northern plains," said Ravinder Vishen, head of IMD's Regional Weather Forecasting Centre. Met officials said, with the summer wind patterns now in place, temperatures are expected to climb in the coming days. By next week, peak temperatures in the capital could climb close to 40 degrees Celsius.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">"Wind circulation features at the moment suggest that the summer season has begun," said IMD spokesperson K Sathi Devi.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The cause of the heating is an upper air zone of high pressure, called a ridge, over Rajasthan and parts of central India. "Due to this, there is a downward movement of air, which is leading to temperatures way higher than normal in northern India," said Vishen.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">The heat is in line with IMD's seasonal forecast for March and April that said average temperatures may be one degree above normal in northern India. The forecast was based on IMD's computer models that take into account global features such as the current heating up of the Pacific Ocean. Being a transition month, March sees a large variation in weather patterns. Last year, for example, the month began on a very hot note. Maximum temperatures were around 31-32 degrees C. The month ended at around 37 degrees. Thus, the variation in peak temperatures was just around 6-7 degrees.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">In 2015, the variation was much larger - around 16-17 degrees C over the 31-day period. The previous year, 2014, showed an altogether different pattern. Maximum temperatures in the beginning of the month were around 21 degrees C while the month-end temperatures were in the 30-31 degree range.</ins></div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=April=</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>=April=</div></td></tr>
</table>Jyoti