Relating Hydrological and Meteorological Drought Indices in Order to Identify Causes of low Flows in the Catchment of Blanice River

摘要: The relationship between meteorological and hydrological drought is in focus the catchment of Blanice River (Central Bohemia Region, South Region). Drought indices used presented are Standardized Precipitation Index (SPI) Streamflow (SDI). was first analyzed from both point view, then were compared order to identify importance preceding period length occurrence drought. total area 534 km2 located 50 km southeast Prague. For assessment drought, data one gauging station a number stations used. time series more than years long. analyses precipitation carried out supported by GIS application get areal based on available data. calculated basis for entire period; however, analysis SDI SPI covers only 1961 2015 which values considered indices. results performed show correlation strongest reference periods 3 6 months.