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Optimisation of groundwater resources exploitation
in the eastern part of the Czech-Saxon borderlands
T. G. Masaryk Water Research Institute, p.r.i.
| Podbabská 2582/30, 160 00 Prague 6, Czech Republic | +420 220 197 111 | info@vuv.cz,
www.vuv.cz
Brno Branch
| Mojmírovo náměstí 16, 612 00 Brno | +420 541 126 311 | info_brno@vuv.cz
Ostrava Branch
| Macharova 5, 702 00 Ostrava | +420 596 134 181 | info_ostrava@vuv.cz
CONTACT:
Zbyněk Hrkal
+420 606079144| hrkal@vuv.cz
Zbyněk Hrkal, David Rozman, Pavel Eckhardt, Eva Novotná
T. G. Masaryk Water Research Institute, Prague
The main objective of joint Czech-German project is the calculation of the water
balance of transboundary aquifer in the region of Saxony. The motivation for this
project was repeated extreme droughts in 2014 and 2015 in Central Europe. The
lack of rainfall negatively impacted particularly on vulnerable quaternary aquifers and
in the shallow subsurface hardrocks aquifer.
PILOTE SITE
INTRODUCTION
METHODOLOGY
EXPECTED RESULTS
Acknowledgment
RESIBIL project is financially supported by the Program of cooperation to promote cross-border cooperation
2014-2020 between the Czech Republic and the Free State of Saxony
Climate change is manifested in Central Europe by more frequent occurrences of climatic extremes,
most recently drought.
This raises the demands for the use of groundwater resources, which receive the status of strategic
resources.
The on-going cross-border project demonstrates the possibilities of negative impacts mitigation on
groundwater water resources..
Bohemian Cretaceous basin is most important
water management unit in the Czech Republic
the total thickness of predominantly sandstone
sediments is up to 1000 m
The highest yields in the order of tens of l / s
have aquifers on the border with Germany
Until now, the use of these strategic groundwater
resources has not been coordinated
Given the lack of water on both sides, there is a
risk of cross-border conflicts - influencing
groundwater levels
2017
Unification
of
Czech
and
German
interpretation of geological
structure.
Geological model of the pilot site is the
output
• Based on the unified geological data
hydrogeological concentual model is
compiled. Main cross-border aquifers and
aquitards are defined,
Joint hydrogeological database is created
including all hydrogeological wells and
springs
data, series of water abstraction
information, climatological data and surface
water flow data
Decline in groundwater levels in the major sedimentary basins has also been
registered. According to current calculations, global warming reflected in the
overall water balance in Central Europe an annual loss of 5 mm. With regard to
the negative impacts of climate change, deep ground water resources in Czech
Cretaceous Basin are becoming for both countries important strategic resource.
2018
Water balance and soil models will be compiled as
the infiltration input to hydraulic model
3D hydraulic hydrogeological model will be compiled
and will be calibrated. His simulations and calculation
of static and dynamic groundwater resources will be
based on several climate scenarios. The model will
be also able to simulate various landuse scenarios
and includes a wide range of demographic and socio-
economic development scenarios in both countries.
All these factors will have a decisive impact on future
water consumption in different spheres of national
economy, especially in industry, agriculture.
2019
Based on the calibrated model several water
management scenarios will be tested with the
participation of endusers from both countries.
Decision support system allowing to optimize the
exploitation
of
Czech
Cretaceous
basins
simultaneously in Germany and in the Czech
Republic will be the final output
20
30
40
50
60
70
80
90
Average precipitation (mm/month)
1960-1981
1982-2003
Changes of precipitation distribution between
1960 – 2003 in Czech Republic
Since the mid-1980s, there has been a statistically
significant rise in water vapor due to an increase in
air temperature - an increase of approximately 5
mm per year