Meteorological and Hydrological Drought Assessment in Ankara Province

Abstract

In recent years, the effects of global warming have been felt more and more each day. Considering the climate zone in which our country is located, the issue of drought becomes critical. Therefore, it is important to be able to analyze the components of drought and determine their effects on water resources. In this study, it was aimed to determine the relationship between the two drought types by determining meteorological and hydrological droughts for Ankara province. For this purpose, meteorological droughts of 1, 3, 6 and 12 months were determined using the Standard Precipitation Index (SPI) and precipitation data. Then, hydrological drought was determined by the Streamflow Drought Index (SDI) using the total flow rates coming to the dams in Ankara province. The relationship between meteorological and hydrological droughts was both interpreted by examining the analysis results and determined by determining the correlation coefficients. It has been determined that hydrological drought follows meteorological drought by an average of 1-3 months. For both types of drought, a severe drought danger is not expected in the studied region.