In situ time series estimation of downwelling diffuse attenuation coefficient at southern Bay of Bengal
In situ time series estimation of downwelling diffuse attenuation coefficient at southern Bay of Bengal
Date
2013
Authors
Ashraf, P.M.
Shaju, S.S.
Gayathri, D.
Minu, P.
Meenakumari, B.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The present study is aimed to determine
the bio-optical characteristics of oceanic waters during
South west monsoon in Bay of Bengal using
hyperspectral radiometer. The variability of diffuse
attenuation coefficient, Kd(1), with chlorophyll a
showed a good relation at shorter wavelengths,
indicating the effect of phytoplankton on Kd(1).
The determination coefficient, R2 at 412, 443, 490
and 555 nm were greater than 0.931. A good linear
relation between Kd(490) and Kd(1) was observed
at shorter wavelengths. These relationships of Kd(1)
provides a platform to study the underwater light
field during Southwest monsoon in Bay of Bengal
Description
Keywords
Diffuse attenuation coefficient, Chlorophyll a, Photosynthetically active radiation, Tropical convergence zone, Bay of Bengal
Citation
J. Indian Soc. Remote Sensg. 41(3): 725-730