Observations show that summer rainfall over large parts of South Asia has declined over the past five to six decades. It remains unclear, however, whether this trend is due to natural variability or increased anthropogenic aerosol loading over South Asia. Here we use stable oxygen isotopes in spe...
summer monsoon rainfall projectionSummer monsoon rainfall was simulated by a global 20 km-mesh atmospheric general circulation model (AGCM), focusing on the changes in the summer monsoon rainfall of Bangladesh. Calibration and validation of AGCM were performed over Bangladesh for generating summer ...
The region affected by the ISM is the habitat for more than 1 billion people, and the summer monsoon brings in nearly 80% of annual rainfall to this region16. Any changes to the monsoon, through climate change16 or geoengineering17, 18, would profoundly impact economic and food security19 ...
This scenario was based on the assessments made by the World Meteorological Organization in March that the El Nino climate pattern in the Pacific Ocean, which adversely affects, among other things, rainfall in several regions, including South Asia, was at the end of its 2023-24 cycle. TheLa ...
The suppressed rainfall over the Maritime Continent triggers the equatorial Rossby wave, which weakens the ascent over the SASM region; the increased rainfall over the tropical western Indian Ocean excites the equatorial Kelvin wave, which reduces moisture transport. Additionally, tropic-wide warming ...
We also show that by land-atmosphere feedback, river interlinking projects in India will affect the Indian summer monsoon leading to a reduction in September rainfall in dry regions of the country, further aggravating the water stress. The methodology and results presented here pave the way for ...
The Indian summer monsoon (ISM) shows quasi-rhythmic intraseasonal oscillations (ISO) manifested as alternate ‘active’ phases of copious rainfall and quiescent phases of ‘break’. Within these periodic phases, the daily rainfall shows large variabilit
(AOD) and the diurnal mean of NETCRFTOA. On an average, the daily mean NETCRFTOAover the ISMReg also ranged from about −20 to −40 W/m2indicative of the net cooling effect of monsoon clouds. Despite heavy rainfall (climatological mean annual rainfall of ~700 mm), the ISMReg ...
Abstract The vagaries of South Asian summer monsoon rainfall on short and long timescales impact the lives of more than one billion people. Understanding how the monsoon will change in the face of global warming is a challenge for climate science, not least because our state-of-the-art general...
6. India experiences droughts that can lead to a prolonged period of water scarcity7,8. Droughts pose deleterious impacts on natural resources, crop production, and environment1,8,9,10. Since the summer monsoon rainfall is the primary source of surface water availability in the large part of ...