Earth Sciences

Soil moisture revamps the temperature extremes in a warming climate over India

N. G. Ganeshi, M. Mujumdar, et al.

This groundbreaking study reveals how soil moisture variations are influencing temperature extremes across India from 1951 to 2100. Conducted by a team of expert researchers including Naresh G. Ganeshi and Milind Mujumdar, the findings highlight a significant SM-temperature coupling, especially in north-central India, which could reshape our understanding of climate impacts in the region.

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Abstract

This study investigates the impact of soil moisture (SM) perturbations on temperature extremes (ExT) over India for the historical period (1951–2010) and future climate projection (2051–2100) under a 4K warming scenario using the MRI-AGCM3.2 model. Over 70% of India experienced significant ExT changes due to SM perturbations, particularly in north-central India (NCI), a hotspot of strong SM-temperature coupling. A 20% SM departure in NCI significantly altered ExT frequency, duration, and intensity. However, the impact of SM perturbations on ExT frequency and duration lessened with global warming intensification.

Publisher

npj Climate and Atmospheric Science

Published On

Feb 21, 2023

Authors

Naresh G. Ganeshi, Milind Mujumdar, Yuhei Takaya, Mangesh M. Goswami, Bhupendra Bahadur Singh, R Krishnan, Toru Terao

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