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Some physical characteristics of the Antarctic and western Indian Ocean

DRS at CSIR-National Institute of Oceanography

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Title Some physical characteristics of the Antarctic and western Indian Ocean
 
Creator RamaRaju, D.V.
Somayajulu, Y.K.
 
Subject Oceanography and Limnology
Pycnocline
Halocline
Thermocline
Density Gradients
Salinity
Temperature Gradients
Winter
Physical Properties
ISW, Andaman Sea
 
Description Based on the data collected during the cruises of R V Gaveshani in Jan-Feb. of 1979 and 1980 around the Andaman Islands, 6 transects are selected, along which the present study on some physical properties of the waters derived from the distributions of temperature, salinity and sigma t is made, and on the basis of which the presence of certain water masses are identified and discussed. The thickness of the surface mixed layer varies, in general, from 25 to 80 m. Persian Gulf water is identified in the depth range 200-500m as a high salinity (~635.1 ppt) water with temperatures varying from 10-12 degrees C and sigma t from 26.7-27. Below this, in the depth range 500-900 m, a water mass with a salinity of about 35 ppt temperature between 7 degrees and 9.5 degrees C and sigma t between 27 and 27.4 shows characteristics of a mixture of Persian Gulf and Red Sea waters. At depths of about 1500m and below the waters on the eastern side of the Andaman Islands are warmer than on the western side. The general characteristics of the thermocline, halocline, and pycnocline in sectional profiles are presented.
 
Date 1995-05-14T10:00:57Z
2017-09-29T13:48:37Z
1995-05-14T10:00:57Z
2017-09-29T13:48:37Z
1983
 
Type Technical Report
 
Identifier Scientific report of first Indian Expedition to Antarctica; 1983; 53-61
http://drs.nio.org/drs/handle/2264/6562
 
Language en
 
Relation DOD Technical Publication No.1
NON-SCI