Even as the monsoon has made its footfalls felt across the country, there seems to be little respite from the searing heat – aided by steep rises in humidity levels -- in many pockets. The heat waves lashing India this summer are symptomatic of the anomalous temperature trends that are expected to worsen with growing climate change impacts.
New Delhi: This is the hottest pre-monsoon season after 2016 in the country. Winter and post-monsoon seasons are warming up faster, according to the latest findings by the Urban Lab of the Centre for Science and Environment. According to the study, land surface temperatures in Delhi have been the highest since 2010 and the city recorded a significant positive anomaly (temperature higher than expected) on all three temperature parameters. In a bid to understand the warming trend in a comprehensive way, the study by the Centre for Science and Environment (CSE) has analysed the temperature trends by covering all three dimensions of heat stress — surface air temperature, land surface temperature, and relative humidity (heat index). In Delhi, the air temperature has been 1.77 degrees Celsius hotter than in 2010, and the land surface temperature is 1.95 degrees Celsius hotter, the study said, according to a PTI report. What the CSE analysis said The daily average heat index crossed 40 degrees Celsius in June 2022 March and April have been unusually dry in Delhi, but humidity started to rise in May with some scattered rain spells. But this spike in humidity has led to an increase in the heat index in the city, indicating increased thermal discomfort among the population. During the heatwave in May 2022, the land surface temperature across Delhi shot above 38 degrees Celsius, which was “unusual as the green pockets within the city have not heated up to this magnitude in the previous years,” and the average land surface temperature has been getting higher than the daily average air temperature. “Industrial and agricultural zone recorded the highest increase in land surface temperature between March to May. The regions at the city periphery in the north, southwest and northwest Delhi have seen an extremely high surface temperature rise from March 19 to May 14, 2022. Even the temperature of the water bodies rose to 29-30 degrees Celsius in May. It was well below 27 degrees Celsius in March. CSE said the objective of the city analysis was to understand the combined effect of climate change-induced unseasonal heatwaves. The study is based on a comparative statistical analysis of temperature anomalies and observed heat-related impact in Indian cities and regions.
Megacities Delhi, Mumbai, Kolkata and Hyderabad, are much hotter than the larger region around them due to heat island effects caused by surface absorption of heat and local waste heat generated by traffic, industry and air conditioning, among other urban activities, an analysis by Centre for Science & Environment (CSE) said on Thursday. "The seasonal average of Delhi, Mumbai, Kolkata and Hyderabad was 1-2°C higher than the all-India average and 2.5-3.8°C higher than northwest India. This is due to the urban heat island phenomenon," CSE said. Due to excessive hard and dark surfaces, cities tend to absorb the heat coming from the sun during the day. A city also generates a lot of waste heat due to human activities that add to the natural heat, such as using air conditioners. This extra heat should dissipate after sunset, but the city fails to cool down due to pollution and continuing generation of waste heat, leading to warmer conditions compared to rural areas. The CSE study looked into the temperature and humidity data collected by the real-time air quality monitoring network and found massive variations in temperature within the cities. In terms of absolute air temperature, Hyderabad, with a 7.1°C variation, had the most pronounced heat islands, while Kolkata, with just 1.3°C, had the least pronounced ones. Delhi had a 6.2°C variation, and Mumbai's was 5.5°C. From a heat index perspective, Mumbai leads the group with a 17.3°C. "From the land surface temperature perspective, it is Delhi in the lead with a 24.6°C variation," the analysis said. The difference among the cities can be explained by the environmental difference in the nature of the heat in their regions, as well as the differences in their topography and land use patterns. But the fact that all four cities show significant variations in their intra-city temperatures (in all three forms) is strong evidence of urban heat island problems within the cities, it said. The heat index that accounts for both temperature and humidity shows Mumbai, Kolkata and Hyderabad more stressed than Delhi this summer. Even though the seasonal average maximum air temperature in Delhi has been 1.5-2.8°C higher than the other three metros, Kolkata was significantly hotter in terms of the heat index. The analysis said that monsoon is hotter than the pre-monsoon period, while winter and post-monsoon seasons are warming up faster. At an all-India level, the monsoon season — June, July, August and September, as per IMD classification — has been 0.3-0.4°C hotter than pre-monsoon (or summer)," CSE said and added, "What's more? It is getting hotter with time!" The decade's average temperatures for the pre-monsoon or summer period are now 0.49% hotter than the long-term normal (1951-80 baseline). "This is a significant increase, but it pales in front of the increase noted among the decadal average temperatures for the other three seasons. The post-monsoon period — October, November and December as per IMD classification — is hotter by 0.73%. Similarly, the winter — January and February as per IMD classification — has been warmer by 0.68°C, and the monsoon by 0.58°C," the CSE analysis said.
While summer or pre-monsoon season this year has overtaken 2016 records as the second hottest pre-monsoon season in the country, winter and post-monsoon seasons are warming up faster, according to the latest findings by the Urban Lab of Centre for Science and Environment. According to the study, land surface temperatures in Delhi have been the highest since 2010 and that the city recorded significant positive anomaly (temperature higher than expected) on all three temperature parameters. In a bid to understand the warming trend in a comprehensive way, the study by Centre for Science and Environment (CSE) has analysed the temperature trends by covering all three dimensions of heat stress—surface air temperature, land surface temperature, and relative humidity (heat index). In Delhi, air temperature has been 1.77 degrees Celsius hotter than 2010, and the land surface temperature 1.95 degrees Celsius hotter, the study said. According to the CSE analysis, the daily average heat index crossed 40 degrees Celsius in June, 2022. It said March and April have been unusually dry in Delhi, but humidity started to rise in May with some scattered rain spells. But this spike in humidity has led to an increase in the heat index in the city, indicating increased thermal discomfort among the population. “The highest land surface temperature was observed on May 16, 2020 when 53.9 degrees Celsius was recorded within city limits, followed by May 14, 2022 with maximum land surface temperature of 51.8 degrees Celsius. In the previous years, maximum land surface temperature was observed to be in mid-40s range,” the CSE findings said. It further said during the heatwave in May, 2022, the land surface temperature across Delhi shot above 38 degrees Celsius, which was “unusual as the green pockets within the city have not heated up to this magnitude in the previous years,” and that the average land surface temperature has been getting higher than daily average air temperature. “Industrial and agricultural zone recorded highest increase in land surface temperature between March to May. The regions at the city periphery in the north, southwest, and northwest Delhi have seen the extremely high surface temperature rise from March 19 to May 14, 2022,” the study said. The study further noted that even the temperature of the water bodies rose to 29-30 degrees Celsius in May, which were well below 27 degrees Celsius in March. According to CSE’s analysis on air temperature variation among city’s stations, Chandni Chowk recorded the highest average air temperature on May 14, 2022 with 40.39 degrees Celsius, followed by Punjabi Bagh at 40.29 degrees Celsius, Mundka at 39.5 degrees Celsius and Paharganj at 39.1 degrees Celsius. CSE said the objective of the city analysis was to understand the combined effect of climate change induced unseasonal heatwaves. The study is based on comparative statistical analysis of temperature anomalies and observed heat-related impact in Indian cities and regions.
Megacities Delhi, Mumbai, Kolkata and Hyderabad, are a lot hotter than the bigger area round them because of warmth island results brought on by floor absorption of warmth and native waste warmth generated by site visitors, trade and air con, amongst different city actions, an evaluation by Centre for Science & Surroundings (CSE) mentioned on Thursday. “The seasonal common of Delhi, Mumbai, Kolkata and Hyderabad was 1-2°C greater than the all-India common and a pair of.5-3.8°C greater than northwest India. That is as a result of city warmth island phenomenon,” CSE mentioned. On account of extreme onerous and darkish surfaces, cities have a tendency to soak up the warmth coming from the solar in the course of the day. A metropolis additionally generates a number of waste warmth because of human actions that add to the pure warmth, reminiscent of utilizing air conditioners. This further warmth ought to dissipate after sundown, however the metropolis fails to chill down because of air pollution and persevering with era of waste warmth, resulting in hotter circumstances in comparison with rural areas. The CSE research seemed into the temperature and humidity information collected by the real-time air high quality monitoring community and located huge variations in temperature throughout the cities. By way of absolute air temperature, Hyderabad, with a 7.1°C variation, had essentially the most pronounced warmth islands, whereas Kolkata, with simply 1.3°C, had the least pronounced ones. Delhi had a 6.2°C variation, and Mumbai’s was 5.5°C. From a warmth index perspective, Mumbai leads the group with a 17.3°C. “From the land floor temperature perspective, it’s Delhi within the lead with a 24.6°C variation,” the evaluation mentioned. The distinction among the many cities may be defined by the environmental distinction within the nature of the warmth of their areas, in addition to the variations of their topography and land use patterns. However the truth that all 4 cities present important variations of their intra-city temperatures (in all three types) is powerful proof of city warmth island issues throughout the cities, it mentioned. The warmth index that accounts for each temperature and humidity exhibits Mumbai, Kolkata and Hyderabad extra confused than Delhi this summer season. Despite the fact that the seasonal common most air temperature in Delhi has been 1.5-2.8°C greater than the opposite three metros, Kolkata was considerably hotter by way of the warmth index. The evaluation mentioned that monsoon is hotter than the pre-monsoon interval, whereas winter and post-monsoon seasons are warming up quicker. At an all-India stage, the monsoon season — June, July, August and September, as per IMD classification — has been 0.3-0.4°C hotter than pre-monsoon (or summer season),” CSE mentioned and added, “What’s extra? It’s getting hotter with time!” The last decade’s common temperatures for the pre-monsoon or summer season interval at the moment are 0.49% hotter than the long-term regular (1951-80 baseline). “It is a important enhance, nevertheless it pales in entrance of the rise famous among the many decadal common temperatures for the opposite three seasons. The post-monsoon interval — October, November and December as per IMD classification — is hotter by 0.73%. Equally, the winter — January and February as per IMD classification — has been hotter by 0.68°C, and the monsoon by 0.58°C,” the CSE evaluation mentioned.
Delhi has experienced a significant increase in all three temperature parameters, such as surface air temperature, land surface temperature, and relative humidity . The dramatic rise in the number of heat hotspots in Delhi is attributed to a loss of greenery, seasonal erosion of vegetation, and urban life . NEW DELHI: Delhi has gotten hotter than ever thanks to more heat zones, steep variations in city maximum temperatures, and a sudden rise in temperature up to 26 degrees Celsius in areas within a month.According to experts, the city may need to rethink its climate action plans to cope with the city's increasing heat stress.From January 2015 to May 2022, the Centre for Science and Environment (CSE) has calculated the temperature data for Delhi, Mumbai, Kolkata, and Hyderabad.Although Delhi experienced a significant increase in all three temperature parameters, such as surface air temperature, land surface temperature, and relative humidity (heat index), it also observed extreme variations in temperatures in different regions, according to the report. After a record low of pre-monsoon temperatures in 2016, one of the city's hottest summers, the city had been cooling down until this year, according to the report.Delhi is much more drier than some places where the vegetation is more uniform and evergreen.Due to weather and crop harvest, vegetable production in Delhi varied as per season.In addition, research efforts result in a decrease in tree cover, according to Avikal Somvanshi, senior program manager at CSE and lead author of the report. According to Somvanshi, the city needs to re-evaluate its plans to deal with future heat waves and prioritize building resilience.According to the survey, the air surface temperature is currently 1.77 degrees Celsius cooler than the 1981-2010 average, while the land surface temperature is now 1.95 degrees Celsius higher.As compared to the 2010-19 average, the temperature index has increased by 1.64 degrees Celsius.According to the survey, mega cities such as Delhi, Mumbai, Kolkata, and Hyderabad are much hotter due to heat island impacts triggered by surface absorption of heat and local waste heat generated by traffic, agriculture, and airconditioning, among other urban activities. The study also highlighted the lack of a certain framework, such as taking into account humidity and heat index, or the feel temperature.Delhi has been unusually humid in March and April, but humidity began to rise in May, providing relief from heatwaves.However, the rise in humidity has triggered an increase in the city's heat index, indicating an increase in public health problems, according to the survey.But it did not mention the importance of humidity in its analysis of heatwaves, resulting in risks of humid heat, which is thought to be more lethal to humans. With no prompt time-bound mitigation, elevated air temperature, radiating heat from land surfaces, heat-trapping buildings, waste heat from industrial processes and airconditioners, and erosion of forests, urban greens, and waterbodies will increase public health risks, according to Anumita Roychowdhury, executive director of CSE.
This year the pre-monsoon months were the second warmest since 2010 in terms of recorded temperatures in India's history. It broke the record in the year 2016. Big cities like Delhi, Mumbai, Kolkata, and Hyderabad also remained hot. The reason for this was considered to be heat-island, traffic, industries, increasing use of AC, and waste. Heat islands are hard surfaces that store heat so that the temperature of cities does not decrease even during the day. The Center for Science and Environment (CSE) has released the report based on the data collected from the Indian Meteorological Department. According to this, the extreme heat in the north-western part of the country got everyone's attention, but almost the same trend is seen in the whole country. The depleting ponds in the cities and decreasing greenery are adding to the heat. The pre-monsoon time covers the summer months from March to May. The report claimed that 20,615 people died from heat waves from 2000 to 2020. above average heat in monsoon The June-September temperature, as per the nationwide average, was 0.3 to 0.4 degrees above the pre-monsoon months. The average temperature for this decade was 0.49 degrees above the baseline from 1951 to 1980. The increase was 0.73 degrees more in the post-monsoon months i.e. October to December and 0.68 degrees more in the winter months of January and February. The average temperature was 1.24 degrees higher The mean air temperature in pre-monsoon in 2022 was 1.24 degrees above the baseline. This baseline is determined by the temperature recorded between 1971 and 2000. Earlier, the average temperature was 1.20 degrees in 2016 and 1.45 degrees in 2010. In March-April this year, the daily mean maximum temperature of northwest India was 4 degrees above the baseline from 1981 to 2010. These regions include Chandigarh, Delhi, Haryana, Punjab, Himachal Pradesh, Uttarakhand, Uttar Pradesh, Jammu and Kashmir, Ladakh, and Rajasthan.
दिल्ली में गुरुवार को उमस भरी गर्मी का कहर जारी है और बारिश का कहर जारी है. सफदरजंग वेधशालादिल्ली के प्राथमिक मौसम केंद्र में अधिकतम तापमान सामान्य से तीन डिग्री अधिक 39.1 डिग्री सेल्सियस दर्ज किया गया। न्यूनतम तापमान 30 डिग्री सेल्सियस दर्ज किया गया। मौसम कार्यालय ने कहा कि शनिवार को मध्यम बारिश से तापमान 33 डिग्री सेल्सियस तक गिर सकता है। हालांकि मानसून 30 जून को प्रभावशाली तरीके से राजधानी में आया, जिसने शहर को इस मौसम में भारी बारिश का पहला दौर दिया, बाद के दिनों में कम वर्षा के कारण अधिकतम तापमान में धीरे-धीरे वृद्धि हुई है। उपाध्यक्ष (मौसम विज्ञान और जलवायु परिवर्तन) महेश पलावत ने कहा, “ओडिशा के ऊपर एक कम दबाव का क्षेत्र विकसित हो गया था और गुजरात तक पहुंच गया था। इसने ट्रफ रेखा को मध्य भारत की ओर खींच लिया था, जिससे वहां भारी बारिश हुई।” स्काईमेट वेदर. मौसम प्रणाली अब दक्षिण पाकिस्तान में चली गई है और खराब होने लगी है। मॉनसून ट्रफ का पश्चिमी छोर फिर से उत्तर की ओर बढ़ेगा। मध्य पाकिस्तान के ऊपर एक चक्रवाती हवाओं का क्षेत्र भी विकसित हो रहा है। इसके परिणामस्वरूप कुछ स्थानों पर भारी वर्षा हो सकती है पंजाब Advertisement और हरियाणा शनिवार और रविवार को, उन्होंने कहा। दिल्ली-एनसीआर, पश्चिम उतार प्रदेश। और उत्तर पश्चिम राजस्थान Rajasthan मौसम विज्ञानी ने कहा कि अच्छी बारिश होने की भी उम्मीद है। सफदरजंग वेधशाला ने पिछले छह दिनों में सिर्फ 2.6 मिमी बारिश दर्ज की है। 1 जून से मानसून का मौसम शुरू होने के बाद से सामान्य 106.5 मिमी के मुकाबले 144.3 मिमी बारिश हुई है। इसमें से 117.2 मिमी महज 24 घंटे में एक जुलाई को सुबह साढ़े आठ बजे खत्म हुआ। मौसम विभाग ने पहले बुधवार को मध्यम बारिश के लिए ऑरेंज अलर्ट जारी किया था जिसे बाद में गुरुवार को स्थानांतरित कर दिया गया था। हालांकि राजधानी में बारिश का कहर जारी रहा। दिल्ली में आम तौर पर बादल छाए रहेंगे और 13 जुलाई तक हल्की बारिश होगी आईएमडीनवीनतम पूर्वानुमान।
While summer or pre-monsoon season this year has overtaken 2016 records as the second hottest pre-monsoon season in the country, winter and post-monsoon seasons are warming up faster, according to the latest findings by the Urban Lab of Centre for Science and Environment. According to the study, land surface temperatures in Delhi have been the highest since 2010 and that the city recorded significant positive anomaly (temperature higher than expected) on all three temperature parameters. In a bid to understand the warming trend in a comprehensive way, the study by Centre for Science and Environment (CSE) has analysed the temperature trends by covering all three dimensions of heat stress – surface air temperature, land surface temperature, and relative humidity (heat index). In Delhi, air temperature has been 1.77 degrees Celsius hotter than 2010, and the land surface temperature 1.95 degrees Celsius hotter, the study said. According to the CSE analysis, the daily average heat index crossed 40 degrees Celsius in June, 2022. It said March and April have been unusually dry in Delhi, but humidity started to rise in May with some scattered rain spells. But this spike in humidity has led to an increase in the heat index in the city, indicating increased thermal discomfort among the population. “The highest land surface temperature was observed on May 16, 2020 when 53.9 degrees Celsius was recorded within city limits, followed by May 14, 2022 with maximum land surface temperature of 51.8 degrees Celsius. In the previous years, maximum land surface temperature was observed to be in mid-40s range,” the CSE findings said. It further said during the heatwave in May, 2022, the land surface temperature across Delhi shot above 38 degrees Celsius, which was “unusual as the green pockets within the city have not heated up to this magnitude in the previous years,” and that the average land surface temperature has been getting higher than daily average air temperature. “Industrial and agricultural zone recorded highest increase in land surface temperature between March to May. The regions at the city periphery in the north, southwest, and northwest Delhi have seen the extremely high surface temperature rise from March 19 to May 14, 2022,” the study said. The study further noted that even the temperature of the water bodies rose to 29-30 degrees Celsius in May, which were well below 27 degrees Celsius in March. According to CSE’s analysis on air temperature variation among Delhi’s stations, Chandni Chowk recorded the highest average air temperature on May 14, 2022 with 40.39 degrees Celsius, followed by Punjabi Bagh at 40.29 degrees Celsius, Mundka at 39.5 degrees Celsius and Paharganj at 39.1 degrees Celsius. CSE said the objective of the city analysis was to understand the combined effect of climate change induced unseasonal heatwaves. The study is based on comparative statistical analysis of temperature anomalies and observed heat-related impact in Indian cities and regions.
While summer time or pre-monsoon season this 12 months has overtaken 2016 information because the second hottest pre-monsoon season within the nation, winter and post-monsoon seasons are warming up quicker, as acknowledged by to the newest findings by the Urban Lab of Centre for Science and Environment. as acknowledged by to the examine, land floor temperatures in Delhi have been the best since 2010 and that the town recorded vital constructive anomaly (temperature larger than anticipated) on all three temperature parameters. In a bid to grasp the warming development in a complete approach, the examine by Centre for Science and Environment (CSE) has analysed the temperature tendencies by protecting all three dimensions of warmth stress – floor air temperature, land floor temperature, and relative humidity (warmth index). In Delhi, air temperature has been 1.77 levels Celsius hotter than 2010, and the land floor temperature 1.95 levels Celsius hotter, the examine mentioned. as acknowledged by to the CSE evaluation, the every day common warmth index crossed 40 levels Celsius in June, 2022. It mentioned March and April have been unusually dry in Delhi, however humidity began to rise in May with some scattered rain spells. But this spike in humidity has led to a rise within the warmth index within the metropolis, indicating elevated thermal discomfort among the many inhabitants. “The highest land surface temperature was observed on May 16, 2020 when 53.9 degrees Celsius was recorded within city limits, followed by May 14, 2022 with maximum land surface temperature of 51.8 degrees Celsius. In the previous years, maximum land surface temperature was observed to be in mid-40s range,” the CSE findings mentioned.
While summer or pre-monsoon season this year has overtaken 2016 records as the second hottest pre-monsoon season in the country, winter and post-monsoon seasons are warming up faster, according to the latest findings by the Urban Lab of Centre for Science and Environment. According to the study, land surface temperatures in Delhi have been the highest since 2010 and that the city recorded significant positive anomaly (temperature higher than expected) on all three temperature parameters. In a bid to understand the warming trend in a comprehensive way, the study by Centre for Science and Environment (CSE) has analysed the temperature trends by covering all three dimensions of heat stress – surface air temperature, land surface temperature, and relative humidity (heat index). In Delhi, air temperature has been 1.77 degrees Celsius hotter than 2010, and the land surface temperature 1.95 degrees Celsius hotter, the study said. According to the CSE analysis, the daily average heat index crossed 40 degrees Celsius in June, 2022. It said March and April have been unusually dry in Delhi, but humidity started to rise in May with some scattered rain spells. But this spike in humidity has led to an increase in the heat index in the city, indicating increased thermal discomfort among the population. “The highest land surface temperature was observed on May 16, 2020 when 53.9 degrees Celsius was recorded within city limits, followed by May 14, 2022 with maximum land surface temperature of 51.8 degrees Celsius. In the previous years, maximum land surface temperature was observed to be in mid-40s range,” the CSE findings said. It further said during the heatwave in May, 2022, the land surface temperature across Delhi shot above 38 degrees Celsius, which was “unusual as the green pockets within the city have not heated up to this magnitude in the previous years,” and that the average land surface temperature has been getting higher than daily average air temperature. “Industrial and agricultural zone recorded highest increase in land surface temperature between March to May. The regions at the city periphery in the north, southwest, and northwest Delhi have seen the extremely high surface temperature rise from March 19 to May 14, 2022,” the study said. The study further noted that even the temperature of the water bodies rose to 29-30 degrees Celsius in May, which were well below 27 degrees Celsius in March. According to CSE’s analysis on air temperature variation among Delhi’s stations, Chandni Chowk recorded the highest average air temperature on May 14, 2022 with 40.39 degrees Celsius, followed by Punjabi Bagh at 40.29 degrees Celsius, Mundka at 39.5 degrees Celsius and Paharganj at 39.1 degrees Celsius. CSE said the objective of the city analysis was to understand the combined effect of climate change induced unseasonal heatwaves. The study is based on comparative statistical analysis of temperature anomalies and observed heat-related impact in Indian cities and regions.
Whereas summer season or pre-monsoon season this 12 months has overtaken 2016 data because the second hottest pre-monsoon season within the nation, winter and post-monsoon seasons are warming up sooner, in line with the most recent findings by the City Lab of Centre for Science and Surroundings. In accordance with the examine, land floor temperatures in Delhi have been the best since 2010 and that town recorded important constructive anomaly (temperature greater than anticipated) on all three temperature parameters. In a bid to know the warming development in a complete approach, the examine by Centre for Science and Surroundings (CSE) has analysed the temperature tendencies by masking all three dimensions of warmth stress – floor air temperature, land floor temperature, and relative humidity (warmth index). In Delhi, air temperature has been 1.77 levels Celsius hotter than 2010, and the land floor temperature 1.95 levels Celsius hotter, the examine stated. In accordance with the CSE evaluation, the each day common warmth index crossed 40 levels Celsius in June, 2022. It stated March and April have been unusually dry in Delhi, however humidity began to rise in Could with some scattered rain spells. However this spike in humidity has led to a rise within the warmth index within the metropolis, indicating elevated thermal discomfort among the many inhabitants. “The best land floor temperature was noticed on Could 16, 2020 when 53.9 levels Celsius was recorded inside metropolis limits, adopted by Could 14, 2022 with most land floor temperature of 51.8 levels Celsius. Within the earlier years, most land floor temperature was noticed to be in mid-40s vary,” the CSE findings stated. It additional stated throughout the heatwave in Could, 2022, the land floor temperature throughout Delhi shot above 38 levels Celsius, which was “uncommon because the inexperienced pockets throughout the metropolis haven’t heated as much as this magnitude within the earlier years,” and that the common land floor temperature has been getting greater than each day common air temperature. “Industrial and agricultural zone recorded highest improve in land floor temperature between March to Could. The areas on the metropolis periphery within the north, southwest, and northwest Delhi have seen the extraordinarily excessive floor temperature rise from March 19 to Could 14, 2022,” the examine stated. The examine additional famous that even the temperature of the water our bodies rose to 29-30 levels Celsius in Could, which have been properly under 27 levels Celsius in March. In accordance with CSE’s evaluation on air temperature variation amongst Delhi’s stations, Chandni Chowk recorded the best common air temperature on Could 14, 2022 with 40.39 levels Celsius, adopted by Punjabi Bagh at 40.29 levels Celsius, Mundka at 39.5 levels Celsius and Paharganj at 39.1 levels Celsius. CSE stated the target of town evaluation was to know the mixed impact of local weather change induced unseasonal heatwaves. The examine relies on comparative statistical evaluation of temperature anomalies and noticed heat-related affect in Indian cities and areas.
While summer or pre-monsoon season this year has overtaken 2016 records as the second hottest pre-monsoon season in the country, winter and post-monsoon seasons are warming up faster, according to the latest findings by the Urban Lab of Centre for Science and Environment. According to the study, land surface temperatures in Delhi have been the highest since 2010 and that the city recorded significant positive anomaly (temperature higher than expected) on all three temperature parameters. In a bid to understand the warming trend in a comprehensive way, the study by Centre for Science and Environment (CSE) has analysed the temperature trends by covering all three dimensions of heat stress – surface air temperature, land surface temperature, and relative humidity (heat index). In Delhi, air temperature has been 1.77 degrees Celsius hotter than 2010, and the land surface temperature 1.95 degrees Celsius hotter, the study said. According to the CSE analysis, the daily average heat index crossed 40 degrees Celsius in June, 2022. It said March and April have been unusually dry in Delhi, but humidity started to rise in May with some scattered rain spells. But this spike in humidity has led to an increase in the heat index in the city, indicating increased thermal discomfort among the population. “The highest land surface temperature was observed on May 16, 2020 when 53.9 degrees Celsius was recorded within city limits, followed by May 14, 2022 with maximum land surface temperature of 51.8 degrees Celsius. In the previous years, maximum land surface temperature was observed to be in mid-40s range,” the CSE findings said. It further said during the heatwave in May, 2022, the land surface temperature across Delhi shot above 38 degrees Celsius, which was “unusual as the green pockets within the city have not heated up to this magnitude in the previous years,” and that the average land surface temperature has been getting higher than daily average air temperature. “Industrial and agricultural zone recorded highest increase in land surface temperature between March to May. The regions at the city periphery in the north, southwest, and northwest Delhi have seen the extremely high surface temperature rise from March 19 to May 14, 2022,” the study said. The study further noted that even the temperature of the water bodies rose to 29-30 degrees Celsius in May, which were well below 27 degrees Celsius in March. According to CSE’s analysis on air temperature variation among Delhi’s stations, Chandni Chowk recorded the highest average air temperature on May 14, 2022 with 40.39 degrees Celsius, followed by Punjabi Bagh at 40.29 degrees Celsius, Mundka at 39.5 degrees Celsius and Paharganj at 39.1 degrees Celsius. CSE said the objective of the city analysis was to understand the combined effect of climate change induced unseasonal heatwaves. The study is based on comparative statistical analysis of temperature anomalies and observed heat-related impact in Indian cities and regions.
सीएसई यानी सेंटर फॉर साइंस एंड एनवायरनमेंट ने भारतीय मौसम विभाग मिले आंकड़ों पर अपनी रिपोर्ट प्रस्तुत की है। इस रिपोर्ट के मुताबिक़ इस साल प्री-मानसून माह भारत के इतिहास का सबसे गर्म महीना रहा है। जानकारी के मुताबिक़ 2010 के बाद से 2022 के प्री मानसून महीने को सबसे गर्म महीना पाया गया। इसका कारण ट्रैफिक, उद्योगों, हीट-आईलैंड, एसी के बढ़ते उपयोग और कचरे को बताया जा रहा है। हीट आईलैंड उन सतहों को कहते हैं जहाँ गर्मी जमा होती है। इससे शहरों का तापमान दिन ढलने पर भी कम नहीं हो पाता और गर्मी बनी रहती है। सीएसई की रिपोर्ट से स्पष्ट होता है कि देश के उत्तर-पश्चिमी हिस्से में अत्याधिक गर्मी ने सभी का ध्यान खींचा है। इस बार गर्मी पूरे देश में पैर पसारती नज़र आई है। शहराें में घटते तालाब, कम होती हरियाली के नतीजे में गर्मी का प्रकोप बढ़ता जा रहा है। प्री-मानसून का समय मार्च से मई तक माना जाता है। रिपोर्ट में मिली जानकारी के मुताबिक़ लू से वर्ष 2000 से 2020 के बीच 20,615 लोगों ने अपनी जान गंवाई है। इसके अलावा जून से सितंबर के बीच तापमान प्री-मानसून महीनों से 0.3 से 0.4 डिग्री अधिक रिकॉर्ड हुआ है। पोस्ट-मानसूनी महीनों यानी अक्तूबर से दिसंबर में यह वृद्धि 0.73 और सर्दियों के महीनों जनवरी व फरवरी में 0.68 डिग्री अधिक रही। साथ ही 1951 से 1980 के तापमान के आधार पर इस दशक में औसत तापमान 0.49 डिग्री अधिक रिकॉर्ड किया गया है।
सेंटर फॉर साइंस एंड अर्बन लैब के नवीनतम निष्कर्षों के अनुसार, इस साल गर्मी या प्री-मानसून सीजन ने देश में दूसरे सबसे गर्म प्री-मॉनसून सीजन के रूप में 2016 के रिकॉर्ड को पीछे छोड़ दिया है, वहीं सर्दी और मानसून के बाद के मौसम तेजी से गर्म हो रहे हैं। पर्यावरण। अध्ययन के अनुसार, दिल्ली में भूमि की सतह का तापमान 2010 के बाद से सबसे अधिक रहा है और शहर ने तीनों तापमान मापदंडों पर महत्वपूर्ण सकारात्मक विसंगति (उम्मीद से अधिक तापमान) दर्ज की है। वार्मिंग प्रवृत्ति को व्यापक रूप से समझने के लिए, सेंटर फॉर साइंस एंड एनवायरनमेंट (सीएसई) के अध्ययन ने गर्मी के तनाव के सभी तीन आयामों – सतही वायु तापमान, भूमि की सतह के तापमान और सापेक्ष आर्द्रता को कवर करके तापमान प्रवृत्तियों का विश्लेषण किया है। ताप सूचकांक)। अध्ययन में कहा गया है कि दिल्ली में, हवा का तापमान 2010 की तुलना में 1.77 डिग्री सेल्सियस अधिक गर्म रहा है, और भूमि की सतह का तापमान 1.95 डिग्री सेल्सियस अधिक गर्म है। सीएसई के विश्लेषण के अनुसार, जून, 2022 में दैनिक औसत ताप सूचकांक 40 डिग्री सेल्सियस को पार कर गया। इसने कहा कि दिल्ली में मार्च और अप्रैल असामान्य रूप से शुष्क रहे हैं, लेकिन मई में कुछ छिटपुट बारिश के साथ आर्द्रता बढ़ने लगी। लेकिन आर्द्रता में इस वृद्धि से शहर में गर्मी सूचकांक में वृद्धि हुई है, जो आबादी के बीच थर्मल असुविधा में वृद्धि का संकेत देता है। “भूमि की सतह का उच्चतम तापमान 16 मई, 2020 को देखा गया था, जब शहर की सीमा के भीतर 53.9 डिग्री सेल्सियस दर्ज किया गया था, इसके बाद 14 मई, 2022 को अधिकतम भूमि की सतह का तापमान 51.8 डिग्री सेल्सियस दर्ज किया गया था। पिछले वर्षों में, अधिकतम भूमि की सतह का तापमान देखा गया था। 40 के दशक के मध्य में होने के लिए,” सीएसई के निष्कर्षों में कहा गया है।
आमतौर पर ऐसा माना जाता है कि मानसून गर्मी (Monsoon Summer) से राहत देता है. लेकिन इस बार ऐसा देखने को नहीं मिला है. जून के बाद से तापमान में वृद्धि ही दर्ज की गई है. राष्ट्रीय स्तर पर 1951 से 1980 के समय की तुलना करें, तो पता चलता है कि मार्च से मई के बीच जितना तापमान रहता है, इस साल उससे 0.3 डिग्री सेल्सियस अधिक रहा है. इस साल गर्मी के मौसम ने देश में मॉनसून पूर्व दूसरे सर्वाधिक गर्म मौसम के तौर पर 2016 का रिकार्ड तोड़ दिया, जबकि सर्दियों का मौसम या मॉनसून बाद के मौसम में तेजी से तापमान बढ़ रहा है. सेंटर फॉर साइंस एंड इन्वायरोंमेंट (सीएसई) के अर्बन लैब के नवीनतम विश्लेषण में यह कहा गया है. अध्ययन के मुताबिक, दिल्ली में भू-सतह का तापमान 2010 से सर्वाधिक रहा है और शहर में तापमान के सभी तीन मानदंडों पर उम्मीद से अधिक तापमान दर्ज किया गया. गर्मी बढ़ने की प्रवृत्ति को समझने की कोशिश के तहत सीएसई ने सतह वायु तापमान, भू-सतह तापमान और सापेक्षिक आर्द्रता (उष्मा सूचकांक) की तापमान प्रवृत्तियों का विश्लेषण किया. अध्ययन में कहा गया है कि दिल्ली में वायु तापमान 2010 की तुलना में 1.77 डिग्री सेल्सियस अधिक गर्म रहा है और भू-सतह तापमान 1.95 डिग्री सेल्सियस अधिक गर्म रहा है.