HYDROLOGICAL FEATURES OF THE ARABIAN SEA OFF THE NORTHERN AND CENTRAL WEST COAST OF INDIA DURING 1964 WINTER


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Authors

  • D S Rao Central Marine Fisheries Research Institute, Cochin
  • N P Kunhikrishnan Central Marine Fisheries Research Institute, Cochin
  • R Vasantha Kumar Central Marine Fisheries Research Institute, Cochin

Abstract

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.

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Author Biographies

  • D S Rao, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin
  • N P Kunhikrishnan, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin
  • R Vasantha Kumar, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin

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Issue

Vol. 16 No. 1 & 2 (1969)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Rao, D. S., Kunhikrishnan, N. P., & Kumar, R. V. (2011). 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), 1-13. https://epubs.icar.org.in/index.php/IJF/article/view/13234