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Pigment patterns in the Arabian Sea: Spatio-temporal variability as observed by ADEOS

DRS at CSIR-National Institute of Oceanography

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Title Pigment patterns in the Arabian Sea: Spatio-temporal variability as observed by ADEOS
 
Creator Jadhav, N.A.
Rao, L.V.G.
Panigrahy, R.C.
 
Subject phytoplankton
pigments
remote sensing
spatial variations
temporal variations
surface temperature
winds
chlorophylls
 
Description The spatial and temporal variations of the near-surface concentration of phytoplankton pigment observed by ADEOS during November 1996 - May 1997 are studied in relation to SST and winds. Monthly composite images from OCTS depict spatial and temporal variation of phytoplankton pigment concentration in the Arabian Sea. Appreciable regional differences in levels and timing of changes of pigment concentration was found, with a large bloom north of 20 degrees N in February 1997. Pigment concentration at 20 degrees N, 10 degrees N and equator ranged from 0.3-3.0, 0.01-0.3 and 0.01-1.0 mg m super(-3) respectively during the NEM (October-January) period and between 0.01-0.3, 0.01-0.3 and 0.01-0.03 mg m super(-3) respectively during the TR (February-May) period. Monthly means of SST and winds are related to monthly averaged pigment concentrations in order to explain the observed changes in pigment concentration. Low SST and high pigment concentration in the northern Arabian Sea during northeast monsoon may be due to the winter cooling as reported earlier. Chlorophyll concentrations remained relatively high from November to February when winds reversed direction. The results indicate that the OCTS images along with the wind field obtained from NSCAT are useful for understanding the distribution of pigment concentration in the Arabian Sea.
 
Date 2009-01-09T09:19:53Z
2009-01-09T09:19:53Z
2000
 
Type Conference Article
 
Identifier The Fifth Pacific Ocean Remote Sensing Conference (PORSEC), 5-8 December 2000. Proceedings,Vol.1; 50-54p.
http://drs.nio.org/drs/handle/2264/1717
 
Language en
 
Rights Copyright [2000]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher NIO, Dona Paula, Goa (India)