A study of the Homogenous Rainfall Zones of Iran Using Cluster Analysis Based on TRMM Satellite Data
Publish place: Journal of Hydrosciences and Environment، Vol: 2، Issue: 4
Publish Year: 1397
Type: Journal paper
Language: English
View: 477
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Document National Code:
JR_JHE-2-4_004
Index date: 3 July 2019
A study of the Homogenous Rainfall Zones of Iran Using Cluster Analysis Based on TRMM Satellite Data abstract
This study aims to evaluate Spatio-temporal distribution of rainfall through cluster analysis based on Tropical Rainfall Measuring Mission (TRMM) in Iran. To this purpose, the daily-gridded rainfall data were derived for the 1998-2013 period. Then, the seasonal and annual time scale cluster analysis was performed on TRMM-derived rainfall data. The results identified 14 clusters in the annual rainfall. As a high- rainfall zone, Guilan has an average rainfall of 1068 mm per year while Sistan, as a low-rainfall area, has an average rainfall of 106.8 mm annually. Furthermore, the seasonal rainfall distribution indicates high-rainfall zones in Guilan and Mazandaran provinces in spring, summer, and autumn while the areas in the southern range of Alborz Mountain and Persian Gulf are clustered as low-rainfall zone. The rainfall distribution in Iran is seasonal, and the following provinces are among the high-rainfall zones in winter: Kohgiluyeh and Boyer Ahmad, Chaharmahal and Bakhtiari, Khuzestan, and highlands of Lorestan. The low-rainfall areas also include Sistan and Baluchistan, Yazd, and Semnan.
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A study of the Homogenous Rainfall Zones of Iran Using Cluster Analysis Based on TRMM Satellite Data authors
M. Fatemi
Associate Professor of Climatology, Meybod University, Meybod, Iran.
M. Narangifard
PHD graduate of Climatology, Yazd University, Yazd, Iran.
Kh. Hatami Bahman Beiglou
PHD graduate of Climatology, University of Isfahan, Isfahan, Iran