查看文章

Using a level 2 three‐dimensional turbulent closure model, the physical processes affecting the upper‐ocean salinity budget in the Arabian Sea have been studied with particular focus on the seasonal variability of the Arabian Sea High‐Salinity Water (ASHSW). The volume integrated salt budget terms for four subdomains in the Arabian Sea (south of 10.5°N, north of 10.5°N, east of 62.5°E, and west of 62.5°E) shows a clear balance between the horizontal advection and evaporative freshwater loss in the annual mean. The horizontal advection dominates the seasonal cycle in salinity. The seasonal balance is clear, when the terms of the salt budget are integrated between 10.5°N and 2.5°N and east of 62.5°E. In these subdomains the two major episodes of horizontal advection during winter and summer are both associated with the seasonal reversal of the Arabian Sea circulation. Model estimation of the upper …