Climate Change and Probable Impact on Global Monsoons and Regional Components

Climate Change and Probable Impact on Global Monsoons and Regional Components

The Bulletin of the American Meteorological Society (BAMS) article Monsoons Climate Change Assessment reviews “the current state of knowledge of climate change and its impacts on the global monsoon and its regional components.” The article addresses past monsoon changes and primary drivers, projected future changes, and key physical processes. Further, the authors discuss challenges of both past and future modeling and outlooks. As the article focuses on monsoon rainfall over land versus over sea, the content is critical for infrastructure stakeholders.

Monsoon rainfall on land (LMR) is invaluable, providing water resources for greater than two-thirds of the global population. Accordingly, accurate prediction of LMR is critical for our communities worldwide. Further, climate change is increasing the frequency and intensity of extreme rainfall events. In contrast, “…models also project prolonged dry spells between heavy rains,” increasing the risk of droughts in monsoon regions. Extreme rainfall events also contribute to compound events and cascading impacts, such as tropical cyclones, sea-level rise, and land conditions.

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(Source: Wang, Bin & Biasutti, Michela & Byrne, Michael & Castro, Christopher & Chang, Chih-Pei & Cook, Kerry & Fu, Rong & Grimm, Alice & Ha, Kyung-Ja & Hendon, Harry & Kitoh, Akio & Krishnan, R. & Lee, June-Yi & Li, Jianping & Liu, Jian & Moise, Aurel & Pascale, Salvatore & Koll, Roxy & Seth, Anji & Zhou, Tianjun. (2020). Monsoons Climate Change Assessment. Bulletin of the American Meteorological Society. 10.1175/BAMS-D-19-0335.1.)

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