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Estuarine oceanography of the Vembanad lake Part iii: the region between Cochin and The 30 m depth off port mouth

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Relation http://eprints.cmfri.org.in/366/
 
Title Estuarine oceanography of the Vembanad lake
Part iii: the region between Cochin and
The 30 m depth off port mouth
 
Creator Ramamirtham, C P
Muthusamy, S
Khambadkar, L R
Nandakumar, A
Kunhikrishnan, N P
Murty, A V S
 
Subject Oceanography
 
Description The time-distribution patterns of temperature, salinity and oxygen content
along the shipping channel from inside the port to a distance of about 15
km out into the Arabian sea during 1981-1983 are presented and discussed in this
third and last part of the estuarine oceanographic study of the Vembanad lake.
The distribution patterns show that hydrologically the nearshore region up to 12
or 15 km off Cochin is more or less identical to the adjacent coastal region,
without having any apparent influence of the lake, during the dry months January
to May. During the wet months, however, the discharge from the lake, characterized
by suspended sediments, spreads as a plume, over highly saline and cold
upwelled water, turning the region into an intermittent estuary. Though the end
of the plume can often be pinpointed around the 30in depthline, by a sharp
change of colour and filaments formed of floating objects of land and freshwater
origin, the presence of an actual plume front is doubtful because of the weak
surface convergence then occurring in a broad area off Cochin.
 
Publisher CMFRI/ICAR
 
Date 1987
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/366/1/Article_09.pdf
Ramamirtham, C P and Muthusamy, S and Khambadkar, L R and Nandakumar, A and Kunhikrishnan, N P and Murty, A V S (1987) Estuarine oceanography of the Vembanad lake Part iii: the region between Cochin and The 30 m depth off port mouth. Indian Journal of Fisheries, 34 (4). pp. 414-422.