Incursion of the Pacific Ocean Water into the Indian Ocean |
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| Authors: | G S Sharma A D Gouveia Shubha Satyendranath |
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| Institution: | (1) National Institute of Oceanography, Dona Paula, 403 004 Goa;(2) Present address: Department of Marine Sciences, University of Cochin, ForeshoreRoad, 682 016 Cochin |
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| Abstract: | Using the data collected during the International Indian Ocean Expedition, maps showing the distribution of depth, acceleration
potential, salinity and oxyty were prepared for the northeast monsoon for the four potential thermosteric anomaly surfaces:
160, 120, 80 and 60 cl/t. Zonal components of current along 84°E were computed from the geopotential dynamic heights. From
such an analysis, it became clear that low-salinity water from the Pacific intrudes into the western Indian Ocean through
the Banda and Timor seas in the upper layers above 100 cl/t surface, while the North Indian Ocean Water penetrates towards
the Eastern Archipelago below 100 cl/t surface. The South Equatorial Countercurrent and the Tropical Countercurrent are well
depicted on the vertical section of zonal components as well as on the distribution of acceleration potential. |
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| Keywords: | Ocean expedition depth distribution acceleration potential oxyty |
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