Document Type : Research Paper
Author
Abstract
Precipitation as one of the climatic elements is an appropriate index for climate change. Precipitation in the studied years and the years before and after it shows the instability and the many fluctuations whose prediction, based on the probable precipitation formulas in hydrology, is very simple, important and practical, and can help prevent financial and life losses in the future. In this research, using the 21-year precipitation data in 12 stations of Golestan plain, the characteristics and the quality of precipitation, the monthly-seasonal and spatial precipitation regime, have been analyzed and presented through columnar and circular diagrams and tables, and since precipitation is an unstable climatic element, which changes from year to year in terms of time intervals, and it can not be expected that the behavior of the climate be the same and homogeneous everywhere, therefore, in calculating the empirical probabilities of occurrence of precipitation and probable precipitation, their monthly and yearly variation coefficients have been analyzed.
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