TEMPORAL AND SPATIAL ANALYSIS OF THE LARGEST HYDROLOGICAL DROUGHTS IN SLOVENIA
Abstract
Analyses show that the frequency of drought events in Slovenia is increasing. Using the data from gauging stations which are part of the national hydrological monitoring system, we carried out a temporal and spatial analysis of the largest hydrological droughts in Slovenia. In the analysis, we included 44 gauging stations that ensure good spatial coverage of Slovenian territory and have available data from 1960 onwards. Using the low flow indices we identified hydrologically dry years, which include 1971, 1989, 1993, 2003, 2011 and 2012. Our calculations of flow deficits and their durations showed that 2003 was the driest, and that drought in this year covered most of Slovenia. Slightly less severe droughts occurred in 1993 and 2012. Drought is a regional phenomenon. In 1993, the most severe drought occurred in northern Slovenia; in 2003 and 2012 in the Prekmurje region; and in 2011 in the southern part of the country.
References
Agencija Republike Slovenije za okolje (ARSO), 2018: Arhiv površinskih voda. Arhiv hidroloških podatkov. http://vode.arso.gov.si/hidarhiv/pov_arhiv_tab.php (4. oktober 2018.)
Cunja, J., 2019. Časovna in prostorska analiza največjih hidroloških suš v Sloveniji. Magistrsko delo. Fakulteta za gradbeništvo in geodezijo, Univerza v Ljubljani. Ljubljana.
Dornik, M., 2016. Standardizirani padavinski indeks – izračun in analiza za Slovenijo. Diplomska naloga, Fakulteta za gradbeništvo in geodezijo, Univerza v Ljubljani. Ljubljana.
Esri Inc., 2007: What is ArcGis Desktop?. ESRI Developer Network. http://edndoc.esri.com/arcobjects/9.2/cpp_vb6_vba_vcpp_doc/shared/desktop/get_started/what_is_dtop.htm (12. november 2018.)
Kobold, M., 2003. Hidrološka suša slovenskih vodotokov v obdobju 2000–2002. Ujma 17–18, 102–111.
Kolbezen, M., Lalič, B., Matajc, I., Mikulič, Z. in Zupančič, B., 1994. Suša v letu 1993. Hidrometeorološki zavod, Ministrstvo za okolje in prostor RS. Ljubljana.
Mikoš, M., Matičič, B., Müller, J., Rakovec, J., Roš, M., Veselič, M. in Brilly, M., 2002. Hidrološko izrazje. Fakulteta za gradbeništvo in geodezijo, Univerza v Ljubljani. Ljubljana.
NDMC, 2018. What is Drought?, National Drought Mitigation center. https://drought.unl.edu/Education/DroughtIn-depth/WhatisDrought.aspx (2. december 2018.)
Stahl, K., 2001. Hydrological Drought – a Study across Europe. Albert-Ludwigs-Universität Freiburg, University of Freiburg Freiburg. Freiburg.
Sušnik, A., Gregorič, G., Uhan, J., Kobold, M., Andjelov, M., Petan, S., ... Valher, A., 2013. Spremenljivost suš v slovenskem prostoru in analiza suše 2013. V: 24. Mišičev vodarski dan, 4. december 2013, Maribor. Zbornik referatov, 102–109.
Šebenik, U., 2012. Analiza suše s pomočjo standardiziranega padavinskega indeksa. Diplomska naloga, Fakulteta za gradbeništvo in geodezijo, Univerza v Ljubljani. Ljubljana.
Šebenik, U., Brilly, M., Šraj, M., 2017. Analiza sušnih razmer s pomočjo standardiziranega padavinskega indeksa. Acta geographica Slovenica, 57(1), 31–49.
Tallaksen, M. in Van Lanen, A., 2004. Hydrological Drought, Processes and Estimation Methods for Streamflow and Groundwater, Developments in Water Science, 139–177.
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