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| Titel |
Nitrous oxide emissions from the Arabian Sea: A synthesis |
| VerfasserIn |
H. W. Bange, M. O. Andreae, S. Lal, C. S. Law, S. W. A. Naqvi, P. K. Patra, T. Rixen, R. C. Upstill-Goddard |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 1, no. 1 ; Nr. 1, no. 1 (2001-12-28), S.61-71 |
| Datensatznummer |
250000066
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| Publikation (Nr.) |
 copernicus.org/acp-1-61-2001.pdf |
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| Zusammenfassung |
| We computed high-resolution
(1º latitude x 1º longitude) seasonal and annual nitrous oxide (N2O) concentration fields for the
Arabian Sea surface layer using a database containing more than 2400 values
measured between December 1977 and July 1997. N2O concentrations are
highest during the southwest (SW) monsoon along the southern Indian continental shelf. Annual emissions range from 0.33 to
0.70 Tg N2O and are dominated by fluxes from coastal regions during the SW and northeast
monsoons. Our revised estimate for the annual N2O flux from the Arabian
Sea is much more tightly constrained than the previous consensus derived using averaged in-situ data from a smaller number of studies. However, the
tendency to focus on measurements in locally restricted features in combination with insufficient seasonal data
coverage leads to considerable
uncertainties of the concentration fields and thus in the flux estimates, especially in the coastal zones of the northern and eastern Arabian Sea. The
overall mean relative error of the annual N2O emissions from the Arabian
Sea was estimated to be at least 65%. |
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