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 32, issue 8
Ann. Geophys., 32, 967–974, 2014
https://doi.org/10.5194/angeo-32-967-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 32, 967–974, 2014
https://doi.org/10.5194/angeo-32-967-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

ANGEO Communicates 19 Aug 2014

ANGEO Communicates | 19 Aug 2014

The occurrence altitudes of middle atmospheric temperature inversions and mesopause over low-latitude Indian sector

M. Sivakandan1, D. Kapasi2, and A. Taori1 M. Sivakandan et al.
  • 1National Atmospheric Research Laboratory, Gadanki – 517 112, India
  • 2St. Joseph's College Autonomous, Lalbagh Road, Bangalore – 560 027, India

Abstract. We study the occurrence characteristics of mesospheric inversion layers (MILs) in the 60–105 km altitude region over the low-latitude Indian sector. We note that lower inversions in the mesospheric temperatures occur in the 70–75 km altitude regions while the upper inversions occur in 90–95 km altitude regions. The mesopause altitude is mostly noted to be ~ 98 km with the night-time mesopause (particularly in the year 2002) showing a small peak in the mesopause occurrence at ~ 75 km altitude. We note higher occurrence rate of MILs during high solar activity year compared to low solar activity year. It is also observed that night time MILs show a systematic seasonal variability, with higher occurrence of single and double temperature inversions during equinoxes.

Publications Copernicus
Download
Citation