Unusual enhancement in temperature and ozone vertical distribution in the lower stratosphere observed over Gadanki, India, following the 15 January 2010 annular eclipse

Extensive observations on various atmospheric parameters were carried out from Gadanki (13.48°N, 79.18°E), a tropical station in India, during the annular solar eclipse of 15 January 2010. In the present study, we report changes observed in temperature and ozone concentration in the lower stratosphe...

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Bibliographic Details
Published in:Geophysical research letters 2011-01, Vol.38 (2), p.np-n/a
Main Authors: Ratnam, M. Venkat, Basha, Ghouse, Roja Raman, M., Mehta, Sanjay Kumar, Krishna Murthy, B. V., Jayaraman, A.
Format: Article
Language:English
Subjects:
Annular
Atmospheric sciences
Earth sciences
Earth, ocean, space
Eclipses
Exact sciences and technology
Horizontal
India
Ozone
ozonesonde
radiosonde
solar eclipse
Solar eclipses
Stations
Stratosphere
temperature
Troposphere
Vertical distribution
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Summary:Extensive observations on various atmospheric parameters were carried out from Gadanki (13.48°N, 79.18°E), a tropical station in India, during the annular solar eclipse of 15 January 2010. In the present study, we report changes observed in temperature and ozone concentration in the lower stratosphere associated with the eclipse. Unusual enhancements in the temperature of 12.5 K and in ozone concentration of 5.5. mPa are observed around 21 km just after the eclipse. Plausible mechanisms for the observed eclipse effects are discussed using data of simultaneous vertical and horizontal winds collected through co‐located MST radar observations. From the preliminary analysis, the temperature and ozone enhancements are attributed to large subsidence and horizontal advection, respectively.
ISSN:0094-8276
1944-8007
DOI:10.1029/2010GL045903