Dissemin is shutting down on January 1st, 2025

Published in

American Geophysical Union, Geophysical Research Letters, 22(24), p. 2789-2792, 1997

DOI: 10.1029/97gl02657

Links

Tools

Export citation

Search in Google Scholar

Preliminary results from WOCE hydrographic sections at 80°E and 32°S in the Central Indian Ocean

Journal article published in 1997 by Lynne D. Talley ORCID, Molly O. Baringer ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

Full text: Download

Green circle
Preprint: archiving allowed
Green circle
Postprint: archiving allowed
Orange circle
Published version: archiving restricted
Data provided by SHERPA/RoMEO

Abstract

The hydrographic properties and circulation along sections at 80°E and 32°S in March, 1995, in the Indian Ocean are described very briefly. A halocline was well-developed in the tropics. A westward coastal jet of fresh Bay of Bengal water was present at the sea surface at Sri Lanka with eastward flow of saline Arabian Sea water below. The Equatorial Undercurrent was well developed as were the deep equatorial jets. The Indonesian throughflow jet presented a large dynamic signature at 10 to 14°S coinciding with a strong front in all properties to great depth. Its mid-depth salinity minimum is separated from that of the Antarctic Intermediate Water. The Subantarctic Mode Water of the southeastern Indian Ocean imparts its high oxygen ventilation signature to the whole of the transects, including the tropical portion. The deepest water in the Central Indian Basin is pooled in the center of the basin, and its principal source appears to be the sill at 11°S through the Ninetyeast Ridge. Northward deep water transports across the 32°S section were similar to those observed in 1987 but the deep water was lower in oxygen and fresher than in 1987. Upper ocean waters at 32°S were more saline and warmer in 1995.