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dc.contributor.authorSarangi, R.K.
dc.contributor.authorSingh, S.
dc.contributor.authorDwivedi, R.M.
dc.contributor.authorMatondkar, S.G.P.
dc.date.accessioned2008-10-17T15:04:55Z
dc.date.available2008-10-17T15:04:55Z
dc.date.issued2008
dc.identifier.citationPhotonirvachak, Vol.36; 13-25p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1464
dc.description.abstractParameters were retrieved from the hyperspectral radiometer like upwelling and downwelling radiance (Lu and Ed) upwelling and downwelling attenuation (K-Lu and K-Ed) for 9 stations in the northeast Arabian Sea between 16-26 April 2006. Data was analyzed for 5 offshore and 4 coastal stations of the cruise SS-244, on board FORV 'Sagar Sampada' between latitude 9-22 degrees N and longitude 68-74 degrees E. The peak for all parameters was observed to be different respectively for depths 1, 5, 10, 20, 30, 40, 50 meters in coastal and offshore stations. Each peak in the respective wavelength is due to a particular composition; phytoplankton pigments have spectral peaks at 443, 490, 555, 670 nm, suspended matter, sediments have peaks at 630 and 670 nm. Detailed analysis with High Performance Liquid Chromatography (HPLC) data and comparison with the water composition of hyperspectral radiometer results show that the marine cyanophyte, Trichodesmium bloom produces high pigment concentrations of chlorophyll-a, zeaxanthin, beta-carotene and pheophytin and their absorptions are interpreted at wavelengths 443, 490, 515 and 536 nanometers, respectively. A dip around 515 nm was seen in the Ed and Lu profiles in our study
dc.language.isoen
dc.publisherThe Indian Society of Remote Sensing
dc.rightsAll 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
dc.subjectAlgal blooms
dc.subjectSpectral composition
dc.subjectUpwelling
dc.subjectDownwelling
dc.titleHyperspectral radiometric observation of the northeast Arabians Sea during April 2006
dc.typeJournal Article


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