Nataša Ravbar, PhD

Senior Research Associate, Adjunct Professor

+386 5 700 19 31

+386 5 700 19 99



  • 1995–2001 (Undergraduate study at the Department of Geography and Department of African and Asian Studies, Faculty of Arts, University of Ljubljana);
  • 2001–2007 (Postgraduate study at the University of Nova Gorica, Graduate School of Karstology).


Education abroad:

  • 1997/1998 (under the aegis of the University of Ljubljana): Xinzhu, Tajvan;
  • 1998/1999 (undergraduate training): Shaanxi Teacher's University, Xian and at the University of Yunnan, Kunming, People’s Republic of China;
  • May 2004 (international scientific training): Centre of hydrogeology, University of Neuchâtel, Switzerland;
  • Since 2004: Bilateral cooperation with People’s Republic of China (Yunnan Institute of Geography, Kunming, International Research Center on Karst, Guilin, Institute of Urban Environment, Xiamen), Serbia (Department of Hydrogeology, Faculty of Mining and Geology, University of Belgrade) and Germany (Hydrological Modeling and Water Resources, University of Freiburg).
  • April - May 2010 (international scientific training): Centre of hydrogeology, University of Malaga, Spain;
  • August – September 2019: Department of Hydrogeology, Faculty of Mining and Geology, University of Belgrade, Serbia


Fields of scientific research and pedagogical activity:

  • karstology;
  • speleology;
  • karst hydrology;
  • environment protection;
  • water resources and water supply;
  • water vulnerability and risk to contamination assessment;
  • natural hazards - floods;
  • geographical information systems.



  • International Geographical Union (IGU) – Karst Commission;
  • International Association of Hydrogeologists (IAH) - Karst Commission;
  • Geomophological Society of Slovenia;
  • Association of Slovenian Geographers - Commission For Scientific Work.


Editorship and membership of editorial boards:

  • Co-editor and member of the Editorial Board of the Acta Carsologica;
  • Member of the Editorial Board of the Urban Challenge, Acta Geobalcanica, Grundwasser, Acta Geoscientica Sinica and Research in Tourism and Karst Areas.


Pedagogical activity:

  • Karstology graduate study programme, University of Nova Gorica and ZRC SAZU;

  • School of Rural Management, Novo mesto.

World Federation of Scientists and the Slovene Scientific Foundation (2008)
Dr. France Munda Fund (1998)

Selected bibliography:

  • PETRIČ, Metka, KOGOVŠEK, Janja, RAVBAR, Nataša. Effects of the vadose zone on groundwater flow and solute transport characteristics in mountainous karst aquifers : the case of the Javorniki-Snežnik massif (SW Slovenia). Acta carsologica, 2018, 47, 1, 35-51, doi: 10.3986/ac.v47i1.5144.
  • MAYAUD, Cyril, GABROVŠEK, Franci, BLATNIK, Matej, KOGOVŠEK, Blaž, PETRIČ, Metka, RAVBAR, Nataša. Understanding flooding in poljes : a modelling perspective. Journal of Hydrology, 2019, 575, 874-889, doi: 10.1016/j.jhydrol.2019.04.092.
  • VIŽINTIN, Goran, RAVBAR, Nataša, JANEŽ, Jože, KOREN, Eva, JANEŽ, Naško, ZINI, Luca, TREU, Francesco, PETRIČ, Metka. Integration of models of various types of aquifers for water quality management in the transboundary area of the Soča/Isonzo river basin (Slovenia/Italy). Science of the total environment, 2018, 619/620, str. 214-1225. doi: 10.1016/j.scitotenv.2017.11.017.
  • TURPAUD, Philippe, ZINI, Luca, RAVBAR, Nataša, CUCCHI, Franco, PETRIČ, Metka, URBANC, Janko. Development of a protocol for the karst water source protection zoning: application to the Classical Karst Region (NE Italy and SW Slovenia). Water resources management, 32(6), 1953-1968, doi: 10.1007/s11269-017-1882-4.
  • KOIT, Oliver, RAVBAR, Nataša, MARANDI, Andres, TERASMAA, Jaanus. Threshold-controlled three-stage hydraulic behaviour of a mantled shallow carbonate aquifer (Tuhala karst area, North Estonia). Acta carsologica, 2017, 46, 2/3, 265-282
  • RAVBAR, Nataša, KOVAČIČ, Gregor. Vulnerability and protection aspects of some Dinaric karst aquifers : a synthesis. Environmental earth sciences, 2015, 74, 1, 129-141
  • RAVBAR, Nataša, ŠEBELA, Stanka. The effectiveness of protection policies and legislative framework with special regard to karst landscapes : insights from Slovenia. Environmental science & policy, 2015, 51, 106-116
  • TURK, Janez, MALARD, Arnauld, JEANNIN, Pierre-Yves, PETRIČ, Metka, GABROVŠEK, Franci, RAVBAR, Nataša, VOUILLAMOZ, Jonathan, SLABE, Tadej, SORDET, Valentin. Hydrogeological characterization of groundwater storage and drainage in an alpine karst aquifer (the Kanin massif, Julian Alps). Hydrological processes,  2015, 29, 8, 1986-1998
  • RAVBAR, Nataša, KOŠUTNIK, Jure. Variations of karst underground air temperature induced by various factors (Cave of Županova jama, Central Slovenia). Theoretical and applied climatology, 2014, 116, 1-2, 327-341
  • TURK, Janez, MALARD, Arnauld, JEANNIN, Pierre-Yves, VOUILLAMOZ, Jonathan, MASINI, Jean, PETRIČ, Metka, GABROVŠEK, Franci, RAVBAR, Nataša, SLABE, Tadej. Interpretation of hydrogeological functioning of a high karst plateau using the KARSYS approach : the case of Trnovsko-Banjška planota (Slovenia. Acta carsologica, 2013, 42, 1, 61-74
  • RAVBAR, Nataša. Variability of groundwater flow and transport processes in karst under different hydrologic conditions. Acta carsologica, 2013, 42, 2/3, 327-338
  • RAVBAR, Nataša (avtor, fotograf), KOVAČIČ, Gregor (avtor, fotograf), MARÍN, Ana Isabel. Abandoned water resources as potential sources of drinking water - the Korentan karst spring near Postojna. Acta geographica Slovenica, 2013, 53, 2, 295-316
  • KOVAČIČ, Gregor, RAVBAR, Nataša. Analysis of human induced changes in a karst landscape : the filling of dolines in the Kras plateau, Slovenia. Science of the total environment, 2013, 447, 143-151
  • RAVBAR, Nataša, BARBERÁ, Juan Antonio, PETRIČ, Metka, KOGOVŠEK, Janja, ANDREO NAVARRO, Bartolomé. The study of hydrodynamic behaviour of a complex karst system under low-flow conditions using natural and artificial tracers (the catchment of the Unica River, SW Slovenia). Environmental earth sciences, 2012, 65, 8, 2259-2272
  • KNEZ, Martin, KOGOVŠEK, Janja, LIU, Hong, MULEC, Janez, PETRIČ, Metka, RAVBAR, Nataša, SLABE, Tadej. Karstological study of the new Kunming airport building area (Yunnan, China). Environmental earth sciences, 2012, 67, 1, 273-283
  • GABROVŠEK, Franci, KNEZ, Martin, KOGOVŠEK, Janja, MIHEVC, Andrej, MULEC, Janez, PERNE, Matija, PETRIČ, Metka, PIPAN, Tanja, PRELOVŠEK, Mitja, SLABE, Tadej, ŠEBELA, Stanka, RAVBAR, Nataša. Development challenges in karst regions : sustainable land use planning in the karst of Slovenia. Carbonates and evaporites,  26, 4, 365-380
  • RAVBAR, Nataša, ENGELHARDT, Irina, GOLDSCHEIDER, Nico. Anomalous behaviour of specific electrical conductivity at a karst spring induced by variable catchment boundaries : the case of the Podstenjšek spring, Slovenia. Hydrological processes, 2011, 25, 13, 2130-2140
  • GABROVŠEK, Franci, KOGOVŠEK, Janja, KOVAČIČ, Gregor, PETRIČ, Metka, RAVBAR, Nataša, TURK, Janez. Recent results of tracer tests in the catchment of the Unica River (SW Slovenia). Acta carsologica, 2010, 39, 1, 27-37
  • RAVBAR, Nataša, KOVAČIČ, Gregor. Characterisation of karst areas using multiple geo-science techniques, a case study from SW Slovenia. Acta carsologica, 2010, 39, 1, 51-60
  • KOVAČIČ, Gregor, RAVBAR, Nataša. Extreme hydrological events in karsts areas of Slovenia, the case of the Unica River basin. Geodinamica Acta, 2010, 23, 1/3, 89-100
  • VÍAS, Jesus, ANDREO NAVARRO, Bartolomé, RAVBAR, Nataša, HÖTZL, Heinz. Mapping the vulnerability of groundwater to the contamination of four carbonate aquifers in Europe. Journal of environmental management, 2010, 91, 7, 1500-1510
  • RAVBAR, Nataša, GOLDSCHEIDER, Nico. Comparative application of four methods of groundwater vulnerability mapping in a Slovene karst catchment. Hydrogeology journal, 2009, 17, 3, 725-733
  • ANDREO NAVARRO, Bartolomé, RAVBAR, Nataša, VIAS, J. M. Source vulnerability mapping in carbonate (karst) aquifers by extension of the COP method : application to pilot sites. Hydrogeology journal, 2009, 17, 3, 749-758
  • RAVBAR, Nataša, GOLDSCHEIDER, Nico. Proposed methodology of vulnerability and contamination risk mapping for the protection of karst aquifers in Slovenia. Acta carsologica, 2007, 36, 3, 397-411
  • RAVBAR, Nataša. Advanced strategies in managing and sustaining karst water quality. V: STEVANOVIĆ, Zoran (ur.). Karst Aquifers - Characterization and Engineering. Heidelberg: Springer Verlag, 2015, str. 614-624
  • KOVAČIČ, Gregor, RAVBAR, Nataša. Validation of vulnerability assessment using time series analysis : the case of the Korentan spring, SW Slovenia. V: ANDREO NAVARRO, Bartolomé (ur.). Hydrogeological and environmental investigations in Karst systems, (Environmental Earth Sciences, ISSN 1866-6280, vol. 1). Heidelberg [etc.]: Springer, 2015, 415-424
  • RAVBAR, Nataša. Protection and management of Karst water sources catchments. V: LANNON, Evelyn C. (ur.). Drainage basins and catchment management : classification, modelling, and environmental assessment, (Water resource planning, development and management). New York: Nova Science Publishers, 2013, 143-168
  • RAVBAR, Nataša. The protection of karst waters : a comprehensive Slovene approach to vulnerability and contamination risk mapping, (Carsologica, 6). Postojna: Karst Research Institute at ZRC SAZU; Ljubljana: Založba ZRC, 2007, 254 pp.
FABRICA Centre of Excellence (aplikativni • 01. august 2011 - 01. august 2011)
Joint Geo-Information System (GIS) for Emergency Protection of Drinking Water Resources (interreg • 02. november 2011 - 30. october 2014)
Common system for the evaluation of the sustainability of water resources management in the Natural Parks Škocjanske Jame and Risnjak (interreg • 01. january 2014 - 17. june 2015)
Integral system of flood sustainable spatial planning (temeljni_raziskovalni • 01. january 2016 - 31. december 2018)
karst floods
karst water sources
vulnerability mapping
karst hydrology