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Sea Surface Heights obtained from Modular Ocean Model Simulation and comparison with Topex/Poseidon data for the Indian Ocean

IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore


Field	Value

Title	Sea Surface Heights obtained from Modular Ocean Model Simulation and comparison with Topex/Poseidon data for the Indian Ocean

Creator	P S, Swathi K S, Yajnik

Subject	Ocean Modelling

Description	The Modular Ocean Model (MOM) is perhaps the most versatile ocean model available today for the simulation of the large scale circulation of the ocean. The Topex/Poseidon altimeter which has been operating since September 1992 has been providing seas surface heights (SSH) of the accuracy of 5-10 cms with a repeat cycle of 10 days. We examine in this paper, the SSH in the Indian Ocean obtained from a global simulation of MOM with a resolution of 10 in the longitude, 1/30 in the latitude between 300S and 300N and 20 levels in the vertical with climatological windforcing and restoring conditions on temperature and salinity. They are compared with the SSH from the Topex/Poseidon altimeter after suitable filtering in the time domain to remove smaller time and length scales. In addition, unfiltered data from both sources are analysed by estimating the cross-spectral density to find the coherence and cross-phase at different frequencies. The agreement between the two, over most of the Northern Indian Ocean, especially the Arabian Sea and the Bay of Bengal is quite good.

Publisher	Indian Academy of Sciences

Date	1997-06

Type	Article PeerReviewed

Format	application/pdf

Identifier	http://cir.cmmacs.ernet.in/149/1/Sea%20surface%20heights.pdf P S, Swathi and K S, Yajnik (1997) Sea Surface Heights obtained from Modular Ocean Model Simulation and comparison with Topex/Poseidon data for the Indian Ocean. Proc of Indian Acad sci (Earth and Planetary Sciences), 106 (1-2). pp. 43-53. ISSN 0253-4126

Relation	http://dx.doi.org/10.1007/BF02841750 http://cir.cmmacs.ernet.in/149/