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Seasonal algal bloom and water quality around the coastal Kerala during southwest monsoon using <i style="">in situ</i> and satellite data

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Title Seasonal algal bloom and water quality around the coastal Kerala during southwest monsoon using in situ and satellite data
 
Creator Sarangi, R.K.
Mohammed, Gulshad
 
Subject Algal bloom
Kerala coast
Water quality parameters
in situ
Satellite data
 
Description 356-364
Algal bloom has been
observed using IRS-P4 (Oceansat-1) OCM data and in situ observations during September 2002 and 2003 around the
Kerala coastal and shelf water off Calicut.
Algal bloom features have been observed in the total radiance, remote sensing
reflectance, chlorophyll and diffuse attenuation coefficient images. In situ observations indicated the
dominance of dinoflagellate Noctiluca
scintillensis in the 1st,
2nd and 3rd weeks of September 2002. Red colour of water
was seen even upto 30-35 kilometer from coastline and this has been got
reflected in OCM derived chlorophyll images with the dense algal bloom features
with very high chlorophyll concentration (20-50 mg/m3). During
September (8, 20, 22, 24 and 30) 2003, high dense algal bloom patches
(chl>20 mg/m3) were seen around the Calicut coast in the OCM
images and spreads across the Kerala coast in the shelf water up to 20-30 km
from coastline. Water colour has been found even green due to toxic micro algae
Hornelia marina. Water quality
parameters like SST, dissolved oxygen, salinity, pH, productivity and nutrients
have been correlated with the bloom phenomenon.
 
Date 2011-07-19T04:44:49Z
2011-07-19T04:44:49Z
2011-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/12425
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.40(3) [June 2011]