A summer monsoon pump to keep the Bay of Bengal salty
IR@NIO: CSIR-National Institute Of Oceanography, Goa
View Archive Info| Field | Value | |
| Creator |
Vinayachandran, P.N.
Shankar, D. Vernekar, S. Sandeep, K.K. Amol, P. Neema, C.P. Chatterjee, A. |
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| Date |
2013-09-06T07:39:12Z
2013-09-06T07:39:12Z 2013 |
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| Identifier |
Geophysical Research Letters, vol.40; 2013; 1777-1782
http://drs.nio.org/drs/handle/2264/4345 |
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| Description |
The Bay of Bengal receives a large influx of freshwater from precipitation and river discharge. Outflow of excess freshwater and inflow of saltier water is required to prevent the bay from freshening. Relatively fresh water flows out of the bay along its boundaries and inflow of saltier water occurs via the Summer Monsoon Current (SMC), which flows eastward from the Arabian Sea into the bay. This saltier water, however, slides under the lighter surface water of the bay. Maintaining the salt balance of the bay therefore demands upward mixing of this saltier, subsurface water. Here, we show that an efficient mechanism for this mixing is provided by upward pumping of saltier water in several bursts during the summer monsoon along the meandering path of the SMC. Advection by currents can then take this saltier water into the rest of the basin, allowing the bay to stay salty despite a large net freshwater input.
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| Language |
en
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| Publisher |
American Geophysical Union
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| Rights |
An edited version of this paper was published by AGU. Copyright [2012] AGU. To view the published open abstract, go to http://dx.doi.org/10.1002/grl.50274
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| Subject |
fresh water
river discharge atmospheric precipitations current profiles |
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| Title |
A summer monsoon pump to keep the Bay of Bengal salty
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| Type |
Journal Article
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