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Evaluation of satellite derived spectral diffuse attenuation coefficients

DRS at CSIR-National Institute of Oceanography

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Field Value
 
Title Evaluation of satellite derived spectral diffuse attenuation coefficients
 
Creator Suresh, T.
Talaulikar, M.
Desa, E.
Mascarenhas, A.A.M.Q.
Matondkar, S.G.P.
 
Description Spectral diffuse attenuation K sub(d)(lambda) is an important apparent optical property that provide information about the attenuation of the spectral downwelling solar irradiance with depth in water. The spectral K sub(d)(lambda) at lambda = 412, 443, 490, 510, 555 and 670 nm derived from the ocean color satellite sensor, SeaWiFS with the in-situ measured values from the Arabian Sea is compared. The satellite derived values are found to be comparable to the measured values in the lower wavelengths and are found to deviate from the measured values in the red band of 670nm. It compared well for lower values of K sub(d) in the blue green bands and overestimated at larger values of K sub(d). The comparison is good within 20% of error for bands at 490 and 510 nm. This indicated that the estimation could provide large errors in the productive and coastal waters, which is attributed to the atmospheric correction procedures used for the retrieval of water leaving radiance and other related products.
 
Date 2008-01-31T04:43:38Z
2008-01-31T04:43:38Z
2007
 
Type Conference Article
 
Identifier Fourth Indian National Conference on Harbour and Ocean Engineering (INCHOE-2007) held at the National Institute of Technology, Surathkal during 12-14 December 2007 ,eds. by: Rao, S.; Shirlal, K.G. 116-123p.
http://drs.nio.org/drs/handle/2264/707
 
Language en
 
Publisher National Institute of Technology, Surathkal