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Emission of carbon dioxide from a tropical estuarine system, Goa, India

DRS at CSIR-National Institute of Oceanography

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Title Emission of carbon dioxide from a tropical estuarine system, Goa, India
 
Creator Sarma, V.V.S.S.
DileepKumar, M.
Manerikar, M.
 
Subject estuaries
tropical environment
carbon dioxide
monsoons
air-water exchanges
runoff
pH
 
Description Carbon dioxide species were studied in Mandovi-Zuari system, a tropical estuarine complex influenced by strong monsoonal run-off, with implications to build up and air-water exchange of CO sub(2) . Total carbon dioxide (TOC sub(2)) behaved conservatively during the estuarine mixing. Partial pressure of carbon dioxide (pCO sub(2)), evaluated from TCO sub(2) and pH couple, and carbonic acid dissociation constants, exhibited supersaturation with respect to atmospheric CO sub(2) round the year. The pCO sub(2) attained maximal levels over 2000 mew atm in waters of early estuarine mixing. Average pCO sub(2) in estuarine system were 1045 and 1153 mew atm (three times to that in atmosphere) in non- southwest (SW) and SW monsoon seasons, respectively. An experimental study revealed that soil-water interaction could be an important controller of pCO sub(2) abundance in these estuarine waters. The calculation water-to-air average fluxes were 67 and 11 m mol m sup(-2) d sup(-1), respectively,. In SW monsoon due to higher wind speeds and non-SW monsoons. This study strongly suggests the pH regulation by soil-water interaction is important, besides biological processes, in river and estuarine systems
 
Date 2009-01-07T10:50:28Z
2009-01-07T10:50:28Z
2001
 
Type Journal Article
 
Identifier Geophysical Research Letters, Vol.28; 1239-1242p.
http://drs.nio.org/drs/handle/2264/1578
 
Language en
 
Rights Copyright [2001]. All 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.
 
Publisher American Geophysical Union