Journal of Earth System Science

, Volume 114, Issue 5, pp 475–491

Hydrography and water masses in the southeastern Arabian Sea during March–June 2003

Authors

  • S. S. C. Shenoi
    • National Institute of Oceanography
  • D. Shankar
    • National Institute of Oceanography
  • G. S. Michael
    • National Institute of Oceanography
  • J. Kurian
    • Indian Institute of Science
  • K. K. Varma
    • College of FisheriesKerala Agricultural University
  • M. R. Ramesh Kumar
    • National Institute of Oceanography
  • A. M. Almeida
    • National Institute of Oceanography
  • A. S. Unnikrishnan
    • National Institute of Oceanography
  • W. Fernandes
    • National Institute of Oceanography
  • N. Barreto
    • National Institute of Oceanography
  • C. Gnanaseelan
    • Indian Institute of Tropical Meteorology
  • R. Mathew
    • National Institute of Oceanography
  • K. V. Praju
    • Cochin University of Science and Technology
  • V. Mahale
    • National Institute of Oceanography
Article

DOI: 10.1007/BF02702024

Cite this article as:
Shenoi, S.S.C., Shankar, D., Michael, G.S. et al. J Earth Syst Sci (2005) 114: 475. doi:10.1007/BF02702024

Abstract

This paper describes the hydrographic observations in the southeastern Arabian Sea (SEAS) during two cruises carried out in March–June 2003 as part of the Arabian Sea Monsoon Experiment. The surface hydrography during March–April was dominated by the intrusion of low-salinity waters from the south; during May–June, the low-salinity waters were beginning to be replaced by the highsalinity waters from the north. There was considerable mixing at the bottom of the surface mixed layer, leading to interleaving of low-salinity and high-salinity layers. The flow paths constructed following the spatial patterns of salinity along the sections mimic those inferred from numerical models. Time-series measurements showed the presence of Persian Gulf and Red Sea Waters in the SEAS to be intermittent during both cruises: they appeared and disappeared during both the fortnight-long time series.

Keywords

Warm poolmonsooncirculationupwelling

Copyright information

© Indian Academy of Sciences 2005