oğuz, kahraman meteoroloji genel müdürlüğü - araştırma dairesi başkanlığı, Ankara, Turkey , pekin, muhammet ali meteoroloji genel müdürlüğü - araştırma dairesi başkanlığı, Ankara, Turkey , gürkan, hüdaverdi meteoroloji genel müdürlüğü - araştırma dairesi başkanlığı, Ankara, Turkey , oğuz, esin meteoroloji genel müdürlüğü - araştırma dairesi başkanlığı, Ankara, Turkey , coşkun, mustafa meteoroloji genel müdürlüğü - araştırma dairesi başkanlığı, Ankara, turkey

Analyses of drought in Eastern Mediterranean basin with era-interim data

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Meteorological drought is known as a global natural disasters and it has important impacts on economyand environment. The Eastern Mediterranean Basin, Turkey is located in, faces with drought events dueto lack of rainfall and it faces with several problems. All these problems are more important at theregions where no rainfall observations. For this reason, it is important to consider drought severity forsaving human lives and prevention of economic losses.Standardised Precipitation Index, is one of the most effective methods for drought analyses, requiresrainfall dataset. This makes the method problematic in areas where there is no precipitation dataset anddemonstrates the importance of gridded data. In this study, drought analyses were made at the EasternMediterranean Basin (20°N – 45°N, 10°E – 60°E) with SPI methodology. Yearly spatial distributionSPI maps (12 months) were prepared and analysed for the period of 2000-2015 with ERA-Interim data.As a result, negative SPI (drought) have been calculated in Balkan countries, Turkmenistan andTurkey s western regions for 2000 year; in Turkey, Iran and Turkmenistan for 2008 year and Iran andArabian Peninsula for 2010 year. Positive SPI (wet) values have been calculated on Turkey and Balkancountries for the years of 2009, 2010 and 2014. The results clearly show rupid changes of droughtconditions from year to year and irregularity in rainfall regime. Besides, drought is the most importantnegative impact of climate change on crop production. Plant productivity has been examined in 2004,2007, 2008 and 2013 when drought is experienced in Turkey. Drought-yield evaluations based on theyears and crops that have been applied show that plant productivity decreases by up to 30 % duringdrought periods.

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Eastern Mediterranean. Basin. ERA , Interim Modeldata. Drought. Standardised. precipitation index

Anadolu Journal Of Agricultural Sciences

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