Evaluation and analysis of spatial changes in Sirjan basin
Subject Areas : ClimatologyTaybeh Mahmoodi Mohammad Abadi, 1 , Mohsen pourkhosravani 2 , Sadegh Karimi 3
1 - PhD of Geomorphology, University of Isfahan, Isfahan, Iran.
2 - Associate Professor of Geomorphology, Shahid Bahonar University of Kerman, Kerman, Iran
3 - Associate Professor of Climatology, Shahid Bahonar University of Kerman, Kerman, Iran
Keywords: Sirjan, Spatial Changes, Last Quaternary, Glacier,
Abstract :
Geographical space is a device that forms the logic of the arrangement of formal patterns, processes and the function of social herdings in space. Changes in space over time are the result of various processes and trends governing it. In this regard, this research tries to evaluate and analyze the spatial changes of Sirjan Basin. For this purpose, the basin method and spatial analysis techniques were used. The results of the research show that the rainfall in the last Quaternary was 17 mm in the central parts of the basin and almost 300 mm in the high altitudes. This amount of change in humidity and ambient temperature has caused a fundamental change in the morphogenic system of the region. Currently, there is no active glacier system in the region. Also, the temperature conditions of this basin have increased from -3.6 to 0.86 degrees Celsius. The maximum temperature of the basin has changed from 16.46 in the cooling phase to 17.64 in the present time. Of course So that the highest temperature difference was related to the highest part of the basin and the lowest difference was related to the lowest point of the basin. Tracing the alluvial terraces of the old lake of Sirjan shows 4 terraces around the lake. As the highest terrace was identified at a height of 1719 meters, according to this, the water volume of Sirjan's old lake during the glacial period was 80400 m³.
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