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Journal of Applied Remote Sensing

Winter hailstorms signatures by C-band polarimetric radar at Delhi
Author(s): Devajyoti Dutta; Amar Jyothi Kasimahanthi; Preveen Kumar Devarajan; John P. George; Ekkattil N. Rajagopal
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Paper Abstract

In the northern region of India, hailstorms are common phenomena during winter. Four cases of hailstorms around Delhi (28° 58975′ N, 77° 22195′ E) region during winter have been analyzed in the present study. It is mainly based on the observations of polarimetric radar variables (ZH and ZDR), as observed by Delhi C-band Doppler weather radar and supplementary thermodynamic variables (CAPE, CIN, wind shear). The thermodynamic properties of the atmosphere during the hailstorm events have been studied using radiosonde observations. The hailstorms over the study region are classified into two types with and without large CAPE. Although ZH is higher for all events, the ZDR differs for the two categories. The events with small CAPE and strong shear produce storms with larger ZDR (rain mixed with small hail), while those with large CAPE and weak shear produce smaller ZDR (strong hail).

Paper Details

Date Published: 20 May 2016
PDF: 12 pages
J. Appl. Remote Sens. 10(2) 026022 doi: 10.1117/1.JRS.10.026022
Published in: Journal of Applied Remote Sensing Volume 10, Issue 2
Show Author Affiliations
Devajyoti Dutta, National Ctr. for Medium Range Weather Forecasting (India)
Amar Jyothi Kasimahanthi, National Ctr. for Medium Range Weather Forecasting (India)
Preveen Kumar Devarajan, National Ctr. for Medium Range Weather Forecasting (India)
John P. George, National Ctr. for Medium Range Weather Forecasting (India)
Ekkattil N. Rajagopal, National Ctr. for Medium Range Weather Forecasting (India)


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