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Meteorological Drought Analysis at North-Western Ankara

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 20
Year: 2019
COI code: NCIID04_029
Paper Language: English

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Authors Meteorological Drought Analysis at North-Western Ankara

  Ali Danandeh Mehr - Associate professor, Antalya Bilim University, Antalay Turkey
Ali Unal Sorman - Emeritus professor, Middle East Technical University, Ankara Turkey
Jafar Sadegh Safari - Assistant Professor, Yaşar University, Izmir Turkey


This paper investigates a meteorological drought analysis at two meteorology stations near metropolitan city of Ankara, Turkey. The standardized precipitationevapotranspiration index (SPEI) were estimated at the reference period 1971–2000 and compared with those of the near future climate period (2016–2040) under RCP4.5 andRCP8.5 greenhouse gas scenarios. Historical simulations and projections of future changes on the drought indices at each station were derived using regional climate modelRegCM4.3.4 to obtain a series of high-resolution simulations of three global climate models (GCMs) used in the Coupled Model Intercomparison Project Phase 5 (CMIP5)experiments. A spatial adjustment between the grid points and meteorology stations was achieved by the grid-based pattern oriented linear scaling bias correction procedure. Ingeneral, the results pointed out that the stations experienced 11 and 4 extreme drought cases respectively at Beypazari and Nallihan stations during the reference period.However, the projections under the RCP4.5 and RCP8.5 scenarios respectively indicated 0 and 13 extreme drought events at the near future at both stations. While the RCP 4.5scenario showed that dry spells were dominant in the second half of the near future period, the RCP 8.5 projected dry spells evenly distributed during the entire near futureperiod.


Drought, Ankara, SPEI, climate change.

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COI code: NCIID04_029

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Danandeh Mehr, Ali; Ali Unal Sorman & Jafar Sadegh Safari, 2019, Meteorological Drought Analysis at North-Western Ankara, The 1st International and 4th National Congress on Iranian Irrigation and Drainage, اروميه -پژوهشكده مطالعات درياچه اروميه, دانشگاه اروميه, the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Danandeh Mehr, Ali; Ali Unal Sorman & Jafar Sadegh Safari, 2019)
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