ICTS:28753

Video URL

Decadal heat content variability in the South Indian Ocean: role of local winds and Inter-basin con…

Decadal heat content variability in the South Indian Ocean: role of local winds and Inter-basin connections

(2024). Decadal heat content variability in the South Indian Ocean: role of local winds and Inter-basin connections. SciVideos. https://youtu.be/tbmXp-FP7hY

Decadal heat content variability in the South Indian Ocean: role of local winds and Inter-basin connections. SciVideos, May. 30, 2024, https://youtu.be/tbmXp-FP7hY 

          @misc{ scivideos_ICTS:28753,
            doi = {},
            url = {https://youtu.be/tbmXp-FP7hY},
            author = {},
            keywords = {},
            language = {en},
            title = {Decadal heat content variability in the South Indian Ocean: role of local winds and Inter-basin connections},
            publisher = {},
            year = {2024},
            month = {may},
            note = {ICTS:28753 see, \url{https://scivideos.org/icts-tifr/28753}}
          }
Abhisek Chatterjee
Talk numberICTS:28753
Source RepositoryICTS-TIFR
Source EventTheoretical and Practical Perspectives in Geophysical Fluid Dynamics
Collection

Abstract

The Indian Ocean has been warming rapidly over the last few decades. However, this warming is not uniform, with the South Indian Ocean (SIO, south of 5S) exhibiting the strongest warming after 2000, an abrupt reversal from the cooling trend observed until the late 20th Century. Increased Indonesian throughflow (ITF) into the Indian Ocean during the recent climate hiatus was considered to be the primary reason for this SIO warming. Here, we show that the role of ITF on the IO decadal variability has reduced considerably after 2010. We find that the warming of the SIO during the climate hiatus (1998-2010) resulted in a weaker Mascarene High and decoupled it from the Southern Ocean atmospheric variabilities. Subsequently, while the Pacific Ocean subtropical gyre continued to migrate poleward in response to the anthropogenic warming in the Southern Ocean, it stalled in the Indian Ocean. This caused a three-fold increase in the Tasman inflows into the Indian Ocean, compensating for the weak...