نوع مقاله : علمی - پژوهشی
نویسندگان
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چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In order to find the changes of precipitation and temperature in the past, by using today's statistics of isothermal and precipitation lines and according to the lines of decrease or increase of precipitation and temperature and by obtaining the snow line (zero degree) of warm, determine the equation of linear correlation with the method of least Squared. With this method, the change of rainfall and temperature of the last Quaternary cold period (Vorm) for the basin in question was obtained in the form of corresponding curve lines. The results of this research show that the average temperature in the cold period was more than ten degrees lower than today's average and the average rainfall in different altitudes was between 8.1 and 3 times more than today's average in the studied area.
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