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Characteristics of cloud drop spectra on rain and non-rain occasions

Paul, SK (1999) Characteristics of cloud drop spectra on rain and non-rain occasions. Indian Journal of Radio and Space Physics, 28 (4). pp. 170-176.

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Measurements on drop size spectra were made in cumulus clouds over Pune (inland) region on a large number of days during the summer monsoon seasons. The measurements of the cloud drop spectra on the days with rain and with no rain in the experimental area made in 1976, 1979 and 1980 (the rain being observed within the clouds) have been studied. The average spectra were broader and concentration of drops with diameter > 50 μm (NL), liquid water content (LWC), mean volume diameter (MVD) and dispersion were found to be greater on the days with rain as compared to those on the days with no rain. Total concentration (NT) and concentration of drops < 20 μm (Ns) were lower on the occasions of rain with respect to those of no rain. The average drop size distributions were bimodal on the days with rain, while they were unimodal on the days with no rain. The variations of cloud drop spectra preceding the rain, at the initial stage of rain and following the rain are discussed.

Item Type: Article
Additional Information: Copyright of this article belongs to NISCAIR
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 06 Mar 2015 05:17
Last Modified: 06 Mar 2015 05:17

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