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Hydrological features of the Arabian sea off the Northern and central west coast of India During 1964 winter

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Relation http://eprints.cmfri.org.in/1584/
 
Title Hydrological features of the Arabian sea off the
Northern and central west coast of India
During 1964 winter
 
Creator Rao, D S
Kunhikrishnan, N P
Vasanthakumar, R
 
Subject Hydrology
 
Description The hydrographic features prevailing along the northern and central west coast of
India during the early part of winter 1964 are discussed. A weak northward gradient
in temperature north of 17°N and an eastward gradient south of it is noticed. The thermocline
is found at shallower depths in the northern regions. A steady increase in the
salinity is observed northward, the maximum being off Bombay. North of 17°N
the flow is mainly eastwards which deflects towards south with increase in depth. At
SO m a continuous weak southward drift is noticed. More or less uniform distribution
is foimd in the dissolved oxygen content at surface and 20 m depth, but at 50 m depth
eastward gradients are noticed. Sharp decrease in dissolved oxygen values occur from
the top of the thermocline and the oxygen minimum layer is conspicuous in all the
sections. The nature of the isotherms and the isolines of oxygen indicate the presence of
upwelling in the region off Bombay.
The total phosphorus content is much less in the region between 15°N and 18°N
with higher values further south and north of these latitudes. The patterns of distribution
of dissolved oxygen and total phosphorus contents show an inverse relationship.
A westward gradient in the phosphorus values is seen at 50 m depth.
 
Publisher CMFRI/ICAR
 
Date 1969
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/1584/1/Article_03.pdf
Rao, D S and Kunhikrishnan, N P and Vasanthakumar, R (1969) Hydrological features of the Arabian sea off the Northern and central west coast of India During 1964 winter. Indian Journal of Fisheries, 16 (1&2). pp. 1-13.