Presentation Details
Influence of the South Asian Monsoon on Freshwater Exchange Between the Bay of Bengal and the Arabian Sea
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Updated Time：2024-10-11 20:28:58 Hits：760
Poster Presentation
Start Time：2025-01-15 19:50（Asia/Shanghai）
Duration：15min
Session：S60 Session 60-Indian Ocean Dynamics, Air-sea Interaction and Biogeochemical Cycles »
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Abstract
The South Asian monsoon (SAM) is undergoing significant changes in the context of climate change, attracting considerable attention due to its profound impact on the region's ecological and societal systems. The SAM regulates active freshwater exchanges between the Bay of Bengal (BoB) and the Arabian Sea (AS). In this study, we investigate the freshwater exchange processes between the BoB and the AS across different timescales to explore how these exchanges can serve as indicators of SAM variability. To achieve this, we utilize Optimally Interpolated Sea Surface Salinity (OISSS) data, along with Mercator Ocean and ERA5 reanalysis products. We identify the primary freshwater exchange pathway, calculate SAM indices based on wind fields and precipitation, and quantitatively assess freshwater transport along the pathway. Our results show that the SAM significantly influences freshwater exchange processes across various timescales. A mixed-layer salinity budget analysis along the exchange pathway reveals that monsoon-driven ocean advection plays a dominant role in freshwater exchange. During years with a strong winter monsoon, freshwater transport occurs earlier. These findings provide a scientific basis for future studies on the evolution of SAM under global warming.
Keywords
South Asian monsoon,salinity,Freshwater exchange,Bay of Bengal,Arabian Sea
Speaker
Yihao Liu
Master Institute of Oceanology； Chinese Academy of Sciences (IOCAS)Submission Author
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Important Date
-
Conference Date
Jan 13
2025
toJan 17
2025
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Sep 27 2024
Draft paper submission deadline
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Feb 17 2025
Registration deadline
Sponsored By
State Key Laboratory of Marine Environmental Science, Xiamen University
Organized By
State Key Laboratory of Marine Environmental Science, Xiamen University
Department of Earth Sciences, National Natural Science Foundation of China
Department of Earth Sciences, National Natural Science Foundation of China
Contact Information
- Kejing GU
- xm******@xmu.edu.cn
- +86*********
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