Increase in Compound Drought and Heatwaves in a Warming World
Increase in Compound Drought and Heatwaves in a Warming World
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世界变暖导致干旱和热浪复合增加
DOI:
10.1029/2020gl090617
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发表时间:
2021
影响因子:
5.2
通讯作者:
Mishra, Ashok Kumar
中科院分区:
文献类型:
--
作者:
Mukherjee, Sourav;Mishra, Ashok Kumar
Compound drought and heatwaves can cause significant damage to the environment, economy, and society. In this study, we quantify the spatio‐temporal changes in compound drought and heatwave (CDHW) events by integrating weekly self‐calibrated Palmer Drought Severity Index (sc_PDSI) and daily maximum temperatures during the period 1983 to 2016. Multiple data products are used to examine the robustness of sc_PDSI in the compound event analysis. The results consistently suggest significant increases in drought‐related heatwaves and affected global land area in recent (warmer) periods. Several regions across the globe witnessed rise in CDHW frequency (one to three events/year), duration (2–10 days/year), and severity. This increasing pattern is spatially asymmetric, and greater amplification is observed across the Northern hemisphere due to recent warming. Furthermore, the background aridity influences the spatiotemporal evolution of CDHW events. The results can be applied to minimize the impacts of extreme CDHWs in critical geographical regions.
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影响因子:
5.4
作者:
Konapala, Goutam;Mishra, Ashok
通讯作者:
Mishra, Ashok
影响因子:
16.6
作者:
Konapala, Goutam;Mishra, Ashok K.;Mann, Michael E.
通讯作者:
Mann, Michael E.
DOI:
10.1029/2019jd031943
发表时间:
2020-06
期刊:
Journal of Geophysical Research: Atmospheres
影响因子:
--
作者:
S. Mukherjee;M. Ashfaq;A. Mishra
通讯作者:
S. Mukherjee;M. Ashfaq;A. Mishra
影响因子:
4.9
作者:
H. Diaz;E. Wahl
通讯作者:
E. Wahl
影响因子:
5.4
作者:
Sanjiv Kumar;F. Zwiers;P. Dirmeyer;D. Lawrence;R. Shrestha;A. Werner
通讯作者:
Sanjiv Kumar;F. Zwiers;P. Dirmeyer;D. Lawrence;R. Shrestha;A. Werner