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UID:pretalx-flowpath-2025-8MSFVC@talks.staging.osgeo.org
DTSTART;TZID=CET:20250611T173000
DTEND;TZID=CET:20250611T174000
DESCRIPTION:This study presents a model-based analysis of hydrodynamic flow
  and heat transport in the Budapest Thermal Karst System\, including futur
 e production scenarios and the impact of newly planned facilities. It emph
 asizes the need for sustainable management of the region due to overlappin
 g exploration requests—many of which are geographically close to vulnera
 ble karst spring areas—following regulatory changes. In response\, the G
 eological Survey of Supervisory Authority for Regulatory Affairs initiated
  the Budapest Geothermal Research Programme.\nNumerical modelling was cond
 ucted using extensive geological and geophysical data\, improving the reli
 ability of the geological model for the covered karst aquifer and tectonic
  features\, mainly on the Pest side. A high-resolution 55 km 2D seismic ne
 twork\, gravity data\, data from more than 300 deep and approx. 30\,000 sh
 allow boreholes\, and 2D/3D seismic interpretations contributed to a new 3
 D geological model. This includes six geological time-horizon models\, six
  geologic formation maps\, seven geological-geophysical sections\, and a P
 re-Cenozoic basement geologic and tectonic map.\nThe region contains cold 
 and hydrothermal karst systems\, including hypogene caves and springs that
  supply Budapest’s thermal baths. To prevent significant changes in hydr
 aulic heads\, temperatures\, and water composition due to new geothermal f
 acilities\, protective zones must be delineated. A harmonized water chemis
 try and isotope hydrology database was developed\, interpreting main chemi
 cal components\, discharge temperatures\, and isotope data.\nBoth convecti
 ve and conductive heat transport were simulated using FEFLOW® software wi
 th density-dependent heat transport. A regional (approx. 4477 km²) model 
 with refined mesh around spring areas identified critical karst water supp
 ly zones and vulnerable regions through visualized maps\, supporting decis
 ion-making processes.
DTSTAMP:20260428T025526Z
LOCATION:Room R3
SUMMARY:Hydrodynamic and heat transport modelling for the sustainable manag
 ement of the Budapest Thermal Karst - Éva Kun
URL:https://talks.staging.osgeo.org/flowpath-2025/talk/8MSFVC/
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