A seven-fold rise in the probability of exceeding the observed hottest summer in India in a 2 °C warmer world
Bibliographic Data
| ID | 15544243 |
|---|---|
| Authors | J S Nanditha (0000-0003-3474-2590, Indian Institute of Technology Gandhinagar), Nanditha J S, Karin van der Wiel (0000-0001-9365-5759, Royal Netherlands Meteorological Institute), Udit Bhatia (0000-0001-6540-8021, Indian Institute of Technology Gandhinagar), Dáithí A Stone (0000-0002-2518-100X, National Institute of Water and Atmospheric Research), Dáithí Stone, Frank Selton (Royal Netherlands Meteorological Institute), Vimal Mishra (0000-0002-3046-6296, Indian Institute of Technology Gandhinagar, corresponding author) |
| Year | 2020 |
| Volume | 15 |
| Issue | 4 |
| Pages | 044028-044028 |
| Publication date | 2020-02-12 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Environmental Research Letters (JOURNAL) |
| Journal identifiers | ISSN: 1748-9326 • E-ISSN: 1748-9326 |
| Publisher | IOP Publishing (PUBLISHER • GB) |
| DOI | 10.1088/1748-9326/ab7555 |
| OpenAlex | W3006509213 |
| Language | EN |
| Citations received | 2 |
| References cited | 55 |
Heatwaves and extreme temperatures during summer (April–May) in India have profound implications on public health, mortality, water availability, and productivity of labourers. However, how the frequency of the hottest summers in observed record (1951–2015) will change under the warming climate in India is not well explored. Using observations from the India Meteorological Department, we show that mean maximum summer temperature has increased significantly in three (arid, monsoon, and savannah) out of five major climatic regions of India during 1951–2015. We identify the hottest summer in the observed record in the five climatic regions in India. The arid, cold, and temperate regions experienced the hottest summer in 2010 while monsoon and Savannah regions witnessed the hottest summer in 1979 and 1973, respectively. Based on simulations from the Climate of 20th Century Plus (C20C+) Detection and Attribution project, we show that the regional hottest summer of 2010 can be attributed to the anthropogenic warming. We then use simulations of a large (2000 year) ensemble of the EC-Earth model to estimate the exceedance probability of the observed hottest summer in the present climate, 2 °C and 3 °C warming worlds in India. The exceedance probability of the observed hottest summers shows a rise of more than seven and twenty-fold in the 2 °C and 3 °C warming world, respectively, compared to the present climate. The projected increases in the frequency of the hot summers and associated heatwave days will pose great societal challenges in the future in India
Arid · Climate change · Climate model · Climatology · Geography · Global warming · Meteorology · Monsoon · Precipitation · Temperate climate · Climate Change and Health Impacts · Climate change impacts on agriculture · Climate variability and models · Environmental Science · Ecology · Geology · Oceanography
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| Unique citing works | 2 |
|---|---|
| Citations per year | 0,33 |
| Citation span | 2020 - 2023 (4) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 2 |