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Suspended matter and fluid mud off Alleppey, southwest coast of India

DRS at CSIR-National Institute of Oceanography

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Title Suspended matter and fluid mud off Alleppey, southwest coast of India
 
Creator Shynu, R.
Rao, V.P.
Samiksha, S.V.
Vethamony, P.
Naqvi, S.W.A.
Kessarkar, P.M.
Babu, M.T.
DineshKumar, P.K.
 
Subject Chemistry and biogeochemistry
Geology and geophysics
Oceanography and limnology
 
Description Time series measurements on suspended particulate matter (SPM) were made at one non-mud bank (M1) and two mud bank stations (M2 and M3) off Alleppey, south west coast of India. The mean SPM was low in surface (6.2 mg/l) and mid-depth (3.7 mg/l) waters and higher in bottom-depth waters (24.6 mg/l) of these stations, during both pre-monsoon and monsoon seasons. Near bed suspended sediment results indicated low SPM during July (0.042 g/l) and September (0.018 g/l) at M1, but very high SPM at M2 (9.2 g/l) and M3 (6.2 g/l) during July that decreased (M2: 0.033 g/l; M3: 0.1 g/l) again in September. Observations based on LISST-25X indicated that optical transmission (OT) was high (80–100%) in surface and mid-depth waters but decreased with increasing depth. Near bed waters at M2 and M3 stations showed ~1 m thick fluid layer with 0% OT and with high particle volume concentrations (150–200 μl/l) during monsoon. Bottom sediments were clayey silts. Sediments of
 
Date 2017-03-01T09:52:18Z
2017-03-01T09:52:18Z
2017
 
Type Journal Article
 
Identifier Estuarine, Coastal and Shelf Science, vol.185(5); 2017; 31-43
http://drs.nio.org/drs/handle/2264/5090
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2016] Elsevier
 
Publisher Elsevier