Response of hydrological drought to meteorological drought in the eastern Mediterranean Basin of Turkey

作     者：Türkan BAYER ALTIN Bekir N ALTIN Türkan BAYER ALTIN;Bekir N ALTIN

作者机构：Department of GeographyFaculty of Science and LettersNiğdeÖmer Halisdemir UniversityNiğde 51240Turkey 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2021年第13卷第5期

页      面：470-486页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Turkish State Meteorological Service 

主　　题：meteorological drought hydrological drought standardized precipitation index(SPI) standardized streamflow index(SSI) eastern Mediterranean Basin 

摘      要：The hydrographic eastern Mediterranean Basin of Turkey is a drought sensitive *** basin is an important agricultural area and it is necessary to determine the extent of extreme regional climatic changes as they occur in this ***’s correlation coefficient was used to show the correlation between standardized precipitation index(SPI)and standardized streamflow index(SSI)values on different time *** from five meteorological stations and seven stream gauging stations in four sub-basins of the eastern Mediterranean Basin were analyzed over the period from 1967 to *** correlation between SSI and SPI indicated that in response to meteorological drought,hydrological drought experiences a one-year delay then occurs in the following *** is more evident at all stations from the mid-1990 *** main factor causing hydrological drought is prolonged low precipitation or the presence of a particularly dry *** showed that over a long period(12 months),hydrological drought is longer and more severe in the upper part than the lower part of the *** to SPI-12 values,an uninterrupted drought period is observed from 2002–2003 to 2008–*** indicated that among the drought events,moderate drought is the most common on all timescales in all sub-basins during the past 51 ***-term dry periods with moderate and severe droughts are observed for up to 10 years or more since the late 1990 s,especially in the upper part of the *** precipitation increases in late autumn and early winter,the stream flow also increases and thus the highest and most positive correlation values(0.26–0.54)are found in *** values(ranging between–0.11 and–0.01)are weaker and negative in summer and autumn due to low *** is more evident at all stations in *** relation between hydrological and meteorological droughts is more evident,with the correlation values above 0.50 on longer timescales(12-and 24-month