Summary of Abstract Submission

Abstract Submission No. IO50-07-0072PresentationOral

RECENT ADVANCES IN UNDERSTANDING THE INDIAN OCEAN VARIABILITY: CONTRIBUTIONS FROM THE INDO-FRENCH COLLABORATIVE NETWORK

M. Lengaigne*1, J. Vialard1, I. Suresh2, S. Neetu2, VVSS Gopalakrishna2, AS Unnikrishnan2, VP Akhil3, AVS Chaitanya2, F. Durand3, F. Papa3

1 IRD/LOCEAN, France
2 CSIR/NIO, India
3 IRD/LEGOS, India/France

ABSTRACT :

Collaborative research between France and India dealing with Indian Ocean variability was initiated in 2003. Initially focused on physical oceanography, this collaboration has widened its scope to cover aspects of the northern Indian Ocean water cycle, climate variability as well as oceanic biogeochemistry, and now involves about twenty Indian and French scientists. Some of the key scientific outcomes of this collaboration will be summarized in this talk. I will first present the recent progresses in describing and understanding the Bay of Bengal salinity structure at seasonal and interannual timescales. I will then review the impacts of the Bay of Bengal very-strong haline stratification on air-sea interactions, including its effect on the regional climate and tropical cyclones. I will further discuss the recent advances in understanding the sea-level and mixed-layer depth variability over timescales ranging from intraseasonal to decadal. I will then address some of the consequences of these oceanic variations on the biogeochemistry of the Indian Ocean, including the occurrence of anoxic events along the western coast of India. I will conclude my talk by briefly discussing the future research initiatives and strategies within the framework of Indo-French collaboration.