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Studying Indian ocean typical dynamical phenomena using TOPEX observations |
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| Authors: | M M Ali Rashmi Sharma |
| Institution: | 1. Meteorology and Oceanography Group, Space Applications Centre , Ahmedabad, India;2. Meteorology and Oceanography Group, Space Applications Centre , Indian Ocean Space Research Organisation , SAC P.O., Ahmedabad, 380 053, India;3. Meteorology and Oceanography Group, Space Applications Centre , Indian Ocean Space Research Organisation , SAC P.O., Ahmedabad, 380 053, India |
| Abstract: | TOPEX altimeter data of 1993 have been analyzed to study the following three types of oceanographic phenomena in the Indian Ocean: (1) sea level variability of the Indian Ocean (20=S to 25=N. 40=E to 100=E): (2) sea surface height signals of the Somali eddy; and (3) sea surface slope variations of the equatorial Indian Ocean (EIO) spanning 5=S to 5=N and 45=E to 95=E. Root‐mean‐square sea level variability revealed the presence of Rossby waves in the southern Indian Ocean. Fast Fourier technique analysis of a few passes near the Somali region is used to study the formation and dissipation of an anticyclonic eddy. |
| Keywords: | eddy equatorial jet FFT geoid orbit Rossby wave sea level variability |