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Title: | First results of warm mesospheric temperature over Gadanki (13.5°N, 79.2°E) during the sudden stratospheric warming of 2009 |
Authors: | Sridharan, S. Raghunath, K. Sathishkumar, S. Nath, D. |
Keywords: | Major sudden stratospheric warming Gravity waves Planetary waves Meridional circulation |
Issue Date: | 2010 |
Citation: | JASTP, v.72/14-15, p.1139-1146, 2010, doi10.1016/j.jastp.2010.06.003 |
Abstract: | Rayleigh lidar observations at Gadanki (13.5°N, 79.2°E) show an enhancement of the nightly mean temperature by 10–15 K at altitudes 70–80 km and of gravity wave potential energy at 60–70 km during the 2009 major stratospheric warming event. An enhanced quasi-16-day wave activity is observed at 50–70 km in the wavelet spectrum of TIMED–SABER temperatures, possibly due to the absence of a critical level in the low-latitude stratosphere because of less westward winds caused by this warming event. The observed low-latitude mesospheric warming could be due to wave breaking, as waves are damped at 80 km. |
URI: | http://localhost:8080/xmlui/handle/123456789/609 |
Appears in Collections: | UAS_Reprints |
Files in This Item:
File | Description | Size | Format | |
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SathishkumarS_JASTP_2010.pdf Restricted Access | 1.4 MB | Adobe PDF | View/Open Request a copy |
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