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On understanding the land-ocean CO2 contrast over the Bay of Bengal: A case study during 2009 summer monsoon

Kumar, KR and Tiwari, YK and Valsala, V and Murtugudde, R (2014) On understanding the land-ocean CO2 contrast over the Bay of Bengal: A case study during 2009 summer monsoon. Environmental Science and Pollution Research, 21 (7). pp. 5066-5075.

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Abstract

Ship-based observations of atmospheric carbon dioxide (CO2) concentration over the Bay of Bengal (BoB) between 17 July 2009 and 17 Aug 2009 offered an excellent opportunity to evaluate the land-ocean contrast of surface CO2 and facilitated its comparison with model simulated CO2 concentrations. Elevated values of CO2 with large variability near the coastal region and relatively low values with correspondingly lower variability over the open ocean suggest that this observed CO2 variability over the ocean essentially captures the differences in terrestrial and oceanic CO2 fluxes. Although the region under investigation is well known for its atmospheric intraseasonal oscillations of Indian summer monsoon during July and August, the limited duration of observations performed from a moving ship in a research cruise, is not able to capture any high-frequency variability of atmospheric CO2 concentrations. But band-passed sea surface temperature and wind anomalies do indicate strong intraseasonal variability over the study region during the observational period. The synoptic data, albeit quite short in duration, thus offer a clear benchmark for abrupt variability of CO2 concentration between land and ocean.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer
Uncontrolled Keywords: atmospheric chemistry; carbon dioxide; climate oscillation; concentration (composition); land-sea interaction; sea surface temperature; simulation; summer, Bay of Bengal; Indian Ocean, carbon dioxide; sea water, air pollutant; article; atmosphere; bay; chemistry; environmental monitoring; phase transition; sea; season; temperature; wind, Air Pollutants; Atmosphere; Bays; Carbon Dioxide; Environmental Monitoring; Oceans and Seas; Phase Transition; Seasons; Seawater; Temperature; Wind
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 26 Nov 2014 10:01
Last Modified: 26 Nov 2014 10:01
URI: http://moeseprints.incois.gov.in/id/eprint/985

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