Kristijan POSAVEC, PhD, Professor






+385 1 5535 770





Official web



Department of Geology and Geological Engineering


Pierottijeva 6, 10000 Zagreb,


Curriculum Vitae

Born in Čakovec, Croatia. He is a professor at Department of Geology and Geological Engineering, Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb. He received award from Croatian Waters for best Graduate Thesis in Area of Water Management and award for the best PhD Thesis. He attended different courses in England, Germany, Switzerland and Czech Republic where he participated in modeling of reactive transport in ground water and site characterization for geological repositories in sediments and hard rocks.


Winter semester

Groundwater Flow and Contaminant Transport Modeling (Graduate study in Geological Engineering)

Project Design in Environmental Protection (Graduate study - Geological Engineering)

Summer semester

Project Design in Hydrogeology (Graduate study - Geological Engineering)

Main Research Activities

Current research activities encompass a field research of flow processes in unsaturated (vadose) zone of an unconfined heterogeneous Zagreb alluvial aquifer (Velika Gorica site) and time series analysis of spring Rakovac flowrate monitored hourly using rectangular sharp-crested weir, Mt. Žumberačka gora (https://www.youtube.com/watch?v=8T99jAE85Xg).

Research polygon at Velika Gorica site

Spring Rakovac, Mt. Žumberačka gora

From year 2003 on, I am developing new methods, solutions and software for Master Recession Curve (MRC) Analysis and Geochemical Background Analysis as well as new methods, solutions and software for hydrogeological data processing.

From year 2012 to 2018, I have been modeling the impact of weirs and hydropowerplant pools (project "Zagreb na Savi") on groundwater levels of the unconfined heterogeneous alluvial aquifers using finite element method (seepage from hydropowerplant pool’s into the drainage systems and hinterland) and finite difference method (regional groundwater flow and contaminant transport modeling).

During the year 2010 and 2011 I have designed and conducted artificial tracer experiment in unconfined heterogeneous alluvial aquifer with highly transient flow conditions within the project GENESIS - Groundwater and dependent Ecosystems: NEw Scientific basIS on climate change and land-use impacts for the update of the EU Groundwater Directive (FP7-ENV-2008-1). Additional geophysical research have been conducted in year 2012.

From year 2009 to 2011, I have developed an objective-based method and a software for analyzing groundwater quality data primarily applicable to large databases. The method and the software mimics subjective appraisal of the graphical presentation of groundwater quality changes in time using five objective-based criterion and extends the analysis in space, in order to assess objective chemical state of groundwater.


| CROSBI | Google Scholar | ORCID | Publons – WOS | ResearchGate | Scopus |

Published software available free of charge (upon request by mail)

Posavec, K., Giacopetti, M., Materazzi, M. and Birk, S., Method and Excel VBA Algorithm for Modeling Master Recession Curve using Trigonometry Approach, Ground Water (2017), 1-8, DOI: 10.1111/gwat.12549. MRCTools v3.1

Posavec, K., Vukojević, P., Ratkaj, M. and Bedeniković, T. (2017): Cross-correlation Modelling of Surface Water – Groundwater Interaction Using Excel Spreadsheet Application, The Mining-Geology-Petroleum Engineering Bulletin 32, 1, 25–32. Cross-Correlation Tool v1

Posavec, K., Parlov, J. and Nakić, Z., Fully Automated Objective-Based Method for Master Recession Curve Separation, Ground Water (2010) (Online, DOI: 10.1111/j.1745-6584.2009.00669.x. MRC Tools v2

Posavec, K., Parlov, J. i Bačani, A., A Visual Basic spreadsheet macro for estimating groundwater recharge, Rudarsko-geološko-naftni zbornik 21 (2009) 19–23. Ground Water Recharge Tool

Nakić, Z., Posavec, K. and Bačani, A., A Visual Basic Spreadsheet Macro for Geochemical Background Analysis, Ground Water 45 (2007) 642–647. Geochemical Background Tool

Posavec, K., Bačani, A. and Nakić, Z., A Visual Basic Spreadsheet Macro for Recession Curve Analysis, Ground Water 44 (2006) 764–767. MRC Tools v1

Posavec, K., Vuletić, G. i Bačani, A., Automated Technique for Creating Lithologic Log Plots, Rudarsko-geološko-naftni zbornik 18 (2006) 71–74. LogPlot Input Data Builder Tool

Posavec, K., Vuletić, G. i Bačani, A., Semi-automated Technique for Creating Geological Profiles, Rudarsko-geološko-naftni zbornik 18 (2006) 75–79. RockWorks Input Data Builder Tool

Professional interests

Groundwater flow and contaminant transport modeling

Design of field and laboratory experiments

Data Sceince

Organization and storage of hydrogeological data

Development of new methods for hydrogeological data processing and accompanying computer programs

Geographic information systems (GIS)

Reviewer for the following journals

Ground Water

Journal of Hydrology

Environmental Geology

Geologia Croatica

The Mining-Geology-Petroleum Engineering Bulletin

International Journal of Earth Sciences and Engineering

International Journal of Geochemistry

Cartography and Geoinformation