Temporal and Spatial Analysis of Drought Using the Standard Precipitation Index for the Northwestern Region of Iraq | ||
| Al-Rafidain Engineering Journal (AREJ) | ||
| Article 12, Volume 26, Issue 1, June 2021, Pages 115-127 PDF (2.04 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rengj.2020.128386.1066 | ||
| Authors | ||
| Samah Mohammed Kasim* 1; Abdulwahab Mohammed Youns2; omar Muqdad Mahmood-Agha1 | ||
| 1Dams and Water Resources Engineering Department, Collage of Engineering, University of Mosul | ||
| 2Department of Dams and Water Resources Engineering,Collage of Engineering,University of Mosul, Mosul,Iraq | ||
| Abstract | ||
| The purpose of the study is to meteorological drought analysis using a standard precipitation index (SPI) in (9) climatic stations spread over the northwestern part of Iraq for the period from 1981 to 2018. Analysis was done at different time intervals and different SPI thresholds. The study showed that the percentage for wet and dry years is 48.54% and 51.46%, respectively, when rated SPI-12 = 0, and this percentage improves for short periods of time to reach 59.94% and 40.06 for wet and dry years respectively when rated SPI-6 (7-12) ) = 0. It was found that the classification of moderate humidity and moderate dryness is prevalent during that period and at all classifications and time periods, while the classification of severe dryness and extreme drought appears clearly and clearly in short time periods, especially in the stations of group (A) and (B). | ||
| Keywords | ||
| Standard precipitation index; extremely drought Sever drought, Heterogeneity, Stations, Rainfall time series | ||
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