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Title: Fractal dimensions of convective clouds around Delhi
Authors: Chatterjee, R N
Ali, Kaushar
Prakash, Prem
Issue Date: Jun-1994
Publisher: NISCAIR-CSIR, India
Abstract: The results of the fractal analysis of convective clouds, observed within 100 km around Delhi during the summer (April to June) season of 1977 are presented. The study is based on the radar observations made with the help of a high power X-band radar. A total number of 397 radar echoes of convective clouds having areas between 4 and 984 km2 were analyzed for studying the relation between their perimeter (P) and area (A). A scatter plot of log P versus log A showed that there is a consistency of relation between the perimeter and the area of the cloud echoes for the entire range of the echo areas. The least square estimate of the fractal dimension (D) of the cloud echo perimeters has been found to be 1.42 with correlation coefficient of 0.994. This is in good agreement with the value D=1.35 arrived by S Lovejoy [Science (USA), 216 (1982) 185] for tropical clouds observed over the Indian ocean.
Page(s): 189-192
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.23(3) [June 1994]

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