Paper Information

Journal:   RESEARCH BULLETIN OF ISFAHAN UNIVERSITY (HUMANITIES)   2007 , Volume 22 , Number 1; Page(s) 155 To 170.
 
Paper: 

TEMPORAL DISTRIBUTION OF THUNDERSTORM RAINFALLS IN THE NORTHWEST OF IRAN

 
 
Author(s):  RASOULI A.A., BODAGHJAMALI J., JALALI O.
 
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Abstract: 

Thunderstorm rainfall is considered as a very vital climatic factor because of its significant effects and often disastrous consequences upon people and the natural environment in the Northwest of Iran. Some experiences have indicated that thunderstorm activity is a characteristic feature of the humid / warm spring and summer months in this region and that rainfall from thunderstorms is a major source of moisture for most parts of the study area. In addition. Flash floods are usually associated with the type of thunderstorm that produces localized, but very intense rainfall, which damages property and even results in a loss of life.
Consequently, the main purpose of this study was to analyze the temporal distribution and variation of thunderstorm rainfalls in the northwest of country for the duration of 1951 - 2002. It was found that such rains in the region have marked diurnal and seasonal variations. They are most frequent in the spring and summer and during the early afternoon and late evening. The final conclusion reveals the interplay of synoptic weather situations, physiographic effects and some environmental elements in the controlling of thunderstorm rainfalls in the study area.

 
Keyword(s): THUNDERSTORM RAINFALLS, NORTHWEST OF IRAN, TEMPORAL VARIATION AND DISTRIBUTION MODELS
 
References: 
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