Open Access Digital Repository of Ministry of Earth Sciences, Government of India

Cloud characteristics over the rain-shadow region of North Central peninsular India during monsoon withdrawal and post-withdrawal periods

Morwal, SB and Narkhedkar, SG and Padma Kumari, B and Maheskumar, RS and Kothawale, DR and Dani, KK and Burger, R and Bruintjes, RT and Kulkarni, JR (2016) Cloud characteristics over the rain-shadow region of North Central peninsular India during monsoon withdrawal and post-withdrawal periods. Climate Dynamics, 46 (1). pp. 495-514.

Full text not available from this repository. (Request a copy)

Abstract

Cloud characteristics over the rain-shadow region of the north central peninsular India has been studied using C-band radar data for the period 21 September–30 October 2011. The period covers withdrawal and post-withdrawal periods of monsoon 2011. Though the study has been carried out for one season, it has been shown that it is representative of climatic feature over the region. The cloud characteristics have been discussed in the context of large scale dynamical and thermodynamical conditions over the region using NCEP wind data and radiosonde data, respectively. The large scale dynamic and thermodynamical conditions were found favorable for occurrence of widespread and deep convection. The cloud top heights show tri-modal distribution with peaks at 2–3, 4–6 and 8–12 km which are associated with cumulus, congestus and cumulonimbus clouds, respectively. The tops of these three types of the clouds are found to be associated with the stable layers in the atmosphere. The frequency of congestus clouds was the highest. The cloud characteristics over the region differ from other tropical land and oceanic regions in respect of maximum height, mean duration and cumulative frequency distribution. Distribution of cloud top height and duration show deviation from lognormality in the lower ends. It indicates that the cloud growth mechanism is different than that observed over other tropical land and oceanic regions and also due to the large wind shear prevailed over the region. During the period, a large number of suitable clouds were found available for hygroscopic and glaciogenic cloud seeding.

Item Type: Article
Additional Information: Copyright of this article belongs to Springer International Publishing
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 08 Apr 2017 09:01
Last Modified: 08 Apr 2017 09:01
URI: http://moeseprints.incois.gov.in/id/eprint/4336

Actions (login required)

View Item View Item