Emmanouil Varouchakis
Leonardo Azevedo
Ioannis Trichakis
George P. Karatzas
Seifeddine Jomaa
Pantelis Soupios
2021-04-19
<p>Groundwater resources in Mediterranean coastal aquifers are under threat due to<br>
overexploitation and climate change impacts, resulting in saltwater intrusion. This situation is<br>
deteriorated by the absence of sustainable groundwater resources management plans. Efficient<br>
management and monitoring of groundwater systems requires interpreting all sources of<br>
available data. This work aims at the development of a set of plausible 3D geological models<br>
combining 2D geophysical profiles, spatial data analytics and geostatistical simulation techniques.<br>
The resulting set of models represents possible scenarios of the structure of the coastal aquifer<br>
system under investigation. Inverted resistivity profiles, along with borehole data, are explored<br>
using spatial data science techniques to identify regions associated with higher uncertainty.<br>
Relevant parts of the profiles will be used to generate 3D models after detailed Anisotropy and<br>
variogram analysis. Multidimensional statistical techniques are then used to select representative<br>
models of the true subsurface while exploring the uncertainty space. The resulting models will<br>
help to identify primary gaps in existing knowledge about the groundwater system and to optimize<br>
the groundwater monitoring network. A comparison with a numerical groundwater flow model will<br>
identify similarities and differences and it will be used to develop a typical hydrogeological model,<br>
which will aid the management and monitoring of the area's groundwater resources. This work<br>
will help the development of a reliable groundwater flow model to investigate future groundwater<br>
level fluctuations at the study area under climate change scenarios.</p>
https://doi.org/10.5194/egusphere-egu21-2601
oai:zenodo.org:6034377
eng
Zenodo
https://zenodo.org/communities/inthemed
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
hydrological modelling
3d modelling
coastal aquifer
crete
3D modelling of a hydrological structure combining spatial data science and geophysics: Application to a coastal aquifer system in the island of Crete, Greece
info:eu-repo/semantics/conferencePaper