Accession Number:

ADA196423

Title:

Seasonal Heat Content Variations in the Northwestern Indian Ocean

Descriptive Note:

Corporate Author:

NAVAL OCEANOGRAPHIC OFFICE BAY SAINT LOUIS MS

Personal Author(s):

Report Date:

1987-01-01

Pagination or Media Count:

7.0

Abstract:

The changes of heat storage of the Somali Basin in the western Indian Ocean, as shown from 55 detailed temperature sections along the western sea lane tanker XBT program 1975-1979, are only partly accounted for by the net heat gain at the sea surface. Vertical movement of the thermocline and horizontal advection appear to be the cause of major changes both between and during the monsoons. During the southwest monsoon the large amount of heat stored in the 0 to 400-m layer during northern spring up to 31 x 10 to the 8th power Jsq m is redistributed with a heat loss of approximately 13 x 10 to the 8th power Jsq m in the upper 0 to 100-m layer and the gain of a similar amount in the 100 to 400-m layer, caused to a large extent by the dynamic response of these layers to the monsoon wind stress. In late autumn this heat is then advected from the region. Reprints.

Subject Categories:

  • Meteorology
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE