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Environmental drivers of temporal variability in DMS (P) in the surfwater of a tropical intertidal beach

DRS at CSIR-National Institute of Oceanography

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Title Environmental drivers of temporal variability in DMS (P) in the surfwater of a tropical intertidal beach
 
Creator Pandey, S.S.
LokaBharathi, P.A.
 
Subject Oceanography and Limnology
Oceanography and Limnology
Temporal variations
Beaches
Intertidal environment
Surfwater
Salinity
ISW, India, Goa, Dona Paula, Dona Paula Bay
 
Description Tropical estuaries are potential contributors of dimethylsulfide (DMS), a climatically relevant volatile sulfur compound and its precursor dimethylsulphoniopropionate (DMSP) In order to understand the distribution of DMS and its consequent fluxes from the intertidal beach of a tropical estuary, we monitored the DMS concentrations and estimated the flux from the surfwater of Dona Paula Bay for a period of one year The probable drivers of variability of this compound were also measured Our results show that the average DMS concentration was highest during the monsoon season (7.64nM) followed by post-monsoon (6.71nM) and premonsoon(1.58nM) Consequently, the estimated sea-air flux of DMS is monsoon > post-monsoon > pre-monsoon at 24.75> 18.93> 2.29 uM m-2d-1 respectively Besides light, temperature affected DMS concentrations irrespective of the season Influence of salinity was restricted to monsoon and was responsible for 26% variation in DMS.Our study highlights the significant contribution of the anti-greenhouse gas, DMS from intertidal beaches especially during monsoon when it exceeds some of the coastal and open ocean measurements reported earlier
 
Date 2015-03-30T10:59:09Z
2017-09-30T03:12:33Z
2015-03-30T10:59:09Z
2017-09-30T03:12:33Z
2014
 
Type Journal Article
 
Identifier Discovery, vol.25(86); 2014; 7-14
2278-5469
http://drs.nio.org/drs/handle/2264/7618
 
Language en
 
Relation Discovery
NON-SCI
 
Publisher Discovery Publication