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| Titel |
Measurement of ambient NH3 over Bay of Bengal during W_ICARB Campaign |
| VerfasserIn |
S. K. Sharma, A. K. Singh, T. Saud, T. K. Mandal, M. Saxena, S. Singh, S. K. Ghosh, S. Raha |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 30, no. 2 ; Nr. 30, no. 2 (2012-02-16), S.371-377 |
| Datensatznummer |
250017185
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| Publikation (Nr.) |
 copernicus.org/angeo-30-371-2012.pdf |
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| Zusammenfassung |
| Concentrations of ambient NH3, NO, NO2 and SO2 were measured
over Bay of Bengal (BoB) during 28 December 2008 to 25 January 2009 to
study their diurnal variation and relationship of NH3 with other trace
gases over BoB. The measurements were done under the winter phase of
Integrated Campaign on Aerosols and Radiation Budget (W_ICARB). For the
first time, ambient NH3 was monitored precisely over BoB based on
chemiluminescence method, having estimation efficiency more precise than the
chemical trap method. The average concentration of ambient NH3, NO,
NO2 and SO2 were recorded as 4.78 ± 1.68,
1.89 ± 1.26, 0.31 ± 0.14 and
0.80 ± 0.30 μg m−3,
respectively, over BoB. The prominent latitudinal and longitudinal variations
of the trace gases were observed over BoB, whereas NH3 and NO
showed the non-significant diurnal variation. Results reveal that the
concentration of ambient NH3 negatively correlated with ambient
NO2 (r2 = −0.56), SO2 (r2 = −0.58) and ambient
temperature (r2 = −0.27) during the study. |
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