Observed currents at Bombay High during a winter

A.A. Fernandes, P. Chandramohan, B.U. Nayak

Abstract



Ten day records of Aanderaa current meters (24 Dec. 1981 to 2 Jan. 1982) at four depths, viz. 30, 45, 60 and 75 m at Bombay High (19 degrees 24.5'N, 71 degrees 2.5'E) off the west coast of India, in a water depth of 80 m have been subjected to spectral, cross-spectral, rotary spectral, harmonic analysis, and low pass filtering in the frequency domain. It was found that at semidiurnal and diurnal frequencies the currents were predominantly barotropic. At all depths the tidal ellipses corresponding to the semidiurnal and diurnal tides were oriented roughly perpendicular to the shelf-break while the mean currents were northwestwards along the shelf-break. During the observation period, the mixed layer (-50 m) remained isothermal while a steady rise in temperature (-2 degrees C) with time was noticed in the cooler bottom layer

References



Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License Mahasagar by National Institite of Oceanography, Goa, India is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Powered by Open Journal Systems. Site is best viewed in 1024X768 resolution. A project by Mithun Raj M. at NIO.