Response of the Indian Summer Monsoon to Global Warming, Solar Geoengineering and its Termination

Bhowmick, Mansi; Mishra, Saroj K.; Kravitz, Benjamin S.; Sahany, Sandeep; Salunke, Popat

doi:10.1038/s41598-021-89249-6

Response of the Indian Summer Monsoon to Global Warming, Solar Geoengineering and its Termination

Journal Article · Fri May 07 00:00:00 EDT 2021 · Scientific Reports

DOI:https://doi.org/10.1038/s41598-021-89249-6· OSTI ID:1806284

Bhowmick, Mansi ^[1]; Mishra, Saroj K. ^[1]; ^[2]; Sahany, Sandeep ^[1]; Salunke, Popat ^[1]

Indian Institute of Technology
BATTELLE (PACIFIC NW LAB)

The response of the Indian Summer Monsoon (ISM) to global warming, solar geoengineering and its termination is examined using the multi-model mean of eight global climate model simulations from G2 experiment of the Geoengineering Model Intercomparison Project. Under the global warming scenario, land-ocean temperature contrasts and low-level monsoon circulation progressively strengthen accompanied by enhanced precipitation over the Indian subcontinent. Notably, in the solar geoengineered scenario, marginal surface cooling is projected over the majority of the ISM region, and there is strengthening of both upper and lower level circulation. Upon the termination of the geoengineering, the climatic conditions temperature, precipitation, and winds — would abruptly change to what it would have been under the global warming scenario, and such abrupt change may cause devastating consequences.

Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-76RL01830

OSTI ID:: 1806284

Report Number(s):: PNNL-SA-146264

Journal Information:: Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 11

Country of Publication:: United States

Language:: English

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