Spatio-Temporal Distribution of Hydrological and Meteorological Droughts in the South Morava Basin
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Over the years, the appropriateness of selection and application of drought indices in a particular climate area have been discussed. A number of drought indicators have been defined for each type of drought (meteorological, hydrological, agricultural) based on different measured data. The Standardized Precipitation Index (SPI) and the Streamflow Drought Index (SDI) were used to establish the association between meteorological and hydrological droughts. Based on the availability, type and accuracy of data, SPI and SDI are the simplest indices to obtain. This paper analyzes the different ways of processing drought data for the South Morava basin in a GIS environment. The largest agricultural drought was recorded in 2007 and because of that this year was selected for the drought analysis. The intensity of the SPI index for the year 2007 was calculated based on monthly precipitation data from eight meteorological stations in the South Morava basin. The SDI data for the year 2007 are provided for 16 hydrological stations. The paper compares the results of meteorological and hydrological droughts in the South Morava basin for the year 2007. The data were processed in the Quantum GIS software package and as a result visualisation of spatial data on meteorological and hydrological droughts was obtained in order to be applied in drought monitoring at the regional level.
KeywordsMeteorological drought Hydrological drought SPI SDI Quantum GIS
The study is supported by the Ministry of Education, Science and Technological Development, Republic of Serbia (Grant No. TR37003), Bilateral science and technological cooperation program between Serbia and Hungary (Grant No. 451-03-02294/2015-09/10) and Serbian Academy of Sciences and Arts Branch in Nis (Grant No. O-15-18).
Conflict of Interest
The authors declare that they have no conflict of interest.
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