Derivation of seasonal variation maps of the average precipitation in Iraq by using remote sensing data and Geographical Information System

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• 作者：Sabah H. Ali ; Namik A. Daood ; Laith K. Ibrahim
• 关键词：Thin plate smoothing splines ; GIS ; Precipitation data ; CLIMAP ; DEM
• 刊名：Arabian Journal of Geosciences
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：8
• 期：7
• 页码：4741-4753
• 全文大小：4,254 KB
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• 作者单位：Sabah H. Ali (1)
  Namik A. Daood (1)
  Laith K. Ibrahim (2)
  
  1. University of Mosul, Mosul, Iraq
  2. Al-Mustansiriya University, Baghdad, Iraq
  
• 刊物类别：Earth and Environmental Science
• 出版者：Springer Berlin Heidelberg
• ISSN：1866-7538

文摘

One of the important climatic features is the precipitation that is defined as water in liquid or solid forms falling to the earth's surface. It is always preceded by condensation, sublimation or combination of the two, and is primarily associated with rising air. Iraq relies on precipitation falling outside its borders for more than half of its water. This high dependency rate makes it vulnerable to climate change and storage projects in Turkey, Syria and Iran. The present study aims to employ remote sensing data and the GIS (Geographical Information System) application to extract the monthly and seasonal variations of the precipitation feature, which affects the area of Iraq. The study depends on precipitation dataset (1970-008) collected from 36 meteorological stations distributed in the north, middle and south of Iraq. Digital Elevation Model (DEM) with spatial resolution of (1?km) used to be important parameters to show the effect of the surface terrain on the distribution of the precipitation in Iraq. ArcGIS9.3.1 and CLIMAP software have been used to analysis and produce the final climatic maps.