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First results of Indian - Current meter moorings along The equator: Vertical current structure variability at equator, 93 degrees E during February-December, 2000

DRS at CSIR-National Institute of Oceanography

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Title First results of Indian - Current meter moorings along The equator: Vertical current structure variability at equator, 93 degrees E during February-December, 2000
 
Creator Murty, V.S.N.
Suryanarayana, A.
Sarma, M.S.S.
Tilvi, V.
Fernando, V.
Nampoothiri, G.
Sardar, A.
Gracias, D.
Khalap, S.
 
Subject ocean currents
current meter moorings
current meter data
current meters
oscillations
time series analysis
kinetic energy
seasonal variations
 
Description The first results of time-series current data obtained from 6 levels at equator, 93 degrees E in the eastern equatorial Indian Ocean during February-December 2000 are analyzed. The top RCM was located at 135m. The mean currents at each depth are weak while the low pass filtered (49-hour) current data show considerable meso-scale variability, comprising of Intraseasonal Oscillations (ISO) of period 10-20 day and 40.5 day. The 10-20 day ISO is associated with similar variability in surface wind forcing while the 30-50 day ISO with Madden-Julian Oscillations. The energy spectrum at 280 m shows relatively higher energy than that at 135 m at 10-20 day ISO; while cross-spectra of kinetic energy at these depths reveal high coherence and upward phase propagation at 10-20 day ISO.
 
Date 2008-08-09T10:16:43Z
2008-08-09T10:16:43Z
2002
 
Type Conference Article
 
Identifier Proceedings of The Sixth Pan Ocean Remote Sensing Conference (PORSEC) Bali, 3-6 September 2002: Remote sensing and ocean science for marine resources exploration and environment. Vol. 2. eds. by: Pasaribu, B.P.; Kaswadji, R.; Nurjaya, I.W.; Gaol, J.L., 25-28p.
http://drs.nio.org/drs/handle/2264/1406
 
Language en
 
Publisher PORSEC 2002 Secretariat; Bogor; Indonesia