Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 1.490
IF1.490
IF 5-year value: 1.445
IF 5-year
1.445
CiteScore value: 2.9
CiteScore
2.9
SNIP value: 0.789
SNIP0.789
IPP value: 1.48
IPP1.48
SJR value: 0.74
SJR0.74
Scimago H <br class='widget-line-break'>index value: 88
Scimago H
index
88
h5-index value: 21
h5-index21
Volume 30, issue 2
Ann. Geophys., 30, 371–377, 2012
https://doi.org/10.5194/angeo-30-371-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 30, 371–377, 2012
https://doi.org/10.5194/angeo-30-371-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

ANGEO Communicates 16 Feb 2012

ANGEO Communicates | 16 Feb 2012

Measurement of ambient NH3 over Bay of Bengal during W_ICARB Campaign

S. K. Sharma1, A. K. Singh2,3, T. Saud1,4, T. K. Mandal1, M. Saxena1, S. Singh1, S. K. Ghosh2,3, and S. Raha2,3 S. K. Sharma et al.
  • 1CSIR-National Physical Laboratory, Dr. K S Krishnan Road, New Delhi-110 012, India
  • 2Centre for Astroparticle Physics and Space Science, Bose Institute, Darjeeling 734 101, West Bengal, India
  • 3Centre for Astroparticle Physics and Space Science, Bose Institute, Block EN, Sector V, Kolkata 700 091, West Bengal, India
  • 4Guru Govind Singh Indraprastha University, New Delhi- 110 006, India

Abstract. 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.

Publications Copernicus
Download
Citation