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Proceedings Paper

Freezing level and bright band height over the Indian Ocean
Author(s): Rajasri Sen Jaiswal; Sonia R. Fredrick; Rasheed M.
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Paper Abstract

The freezing level height (HFL) and the radar bright band height (BBH) are the two important parameters pertaining to cloud physics and precipitation study. The present paper investigates these two parameters over the Indian Ocean over the latitudinal range 36S-8N and the longitudinal range 45E-110E. For this purpose, the freezing level height and the radar bright band height data have been obtained from the data product 2A23 of the precipitation radar (PR) onboard the Tropical Rainfall Measuring Mission satellite (TRMM). The period of study is 1999-2002; 2007-2008. Over a location, the HFL and the BBH show monthly and yearly variations. At a particular location over the Indian Ocean, the HFLmax/min occurs mostly in the same month throughout the period of study. However, at a particular location, the maximum BBH (BBHmax) does not occur in the same month, so also the minimum BBH (BBHmin). The study shows that the BBHmin mostly occurs around 35S, while the location of the BBHmax shows strong seasonal dependence. In individual months, the longitudinally averaged HFL and the BBH show very strong correlations with the latitude, more significant correlations being with the HFL than with the BBH. The HFL also shows excellent correlations with the latitude at a fixed longitude. However, at a fixed longitude, the BBH at times, shows, but not always, correlations with the latitude. The study also shows that over the Indian Ocean, as the latitude increases, the % of times BBH<HFL also increases.

Paper Details

Date Published: 6 October 2017
PDF: 17 pages
Proc. SPIE 10424, Remote Sensing of Clouds and the Atmosphere XXII, 104240G (6 October 2017); doi: 10.1117/12.2272547
Show Author Affiliations
Rajasri Sen Jaiswal, Sona College of Technology (India)
Sonia R. Fredrick, Sona College of Technology (India)
Rasheed M., Sona College of Technology (India)

Published in SPIE Proceedings Vol. 10424:
Remote Sensing of Clouds and the Atmosphere XXII
Adolfo Comerón; Evgueni I. Kassianov; Klaus Schäfer, Editor(s)

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