期刊名称：Journal of the Geographical Institute Jovan Cvijic, SASA
印刷版ISSN：0350-7599
电子版ISSN：1821-2808
出版年度：2020
卷号：70
期号：2
页码：89-100
DOI：10.2298/IJGI2002089L
出版社：Geographical Institute “Jovan Cvijić” SASA
摘要：Drought is a natural phenomenon that occurs when the availability of water is significantly below the normal levels during a shorter or longer period of time and cannot meet the necessary demand. This study focused on hydrological drought assessment of the Tisza River on four gauging stations: Vásárosnamény, Szolnok, Szeged, and Senta for the period 1964-2018. An effective Streamflow Drought Index (SDI) has been recently proposed and widely used for determining hydrological droughts. Both long- and short-term droughts have very severe impacts on the investigated locations. Two drought periods can be singled out: the first period was from 1983 to 1993, with the exceptions in 1985 and 1987. This period is characterized by higher absolute SDI values on Vásárosnamény (-0.84) and Szolnok (-0.87) than on Szeged (-0.29) and Senta (-0.40) stations. The second period was more severe and lasted from 2011 to 2015, with an average SDI value of -1.32 on Vásárosnamény, -1.08 on Szolnok, -0.53 on Szeged, and -0.57 on Senta station. The Mann-Kendall test results indicate that there is no trend indicating transition from humid towards more arid condition over the investigated period.
关键词：drought; Streamflow Drought Index; Tisza River; Serbia; Hungary
