Hydrogeological Model of Latvia, First Results
2012
Aivars Spalviņš, Jānis Šlangens, Inta Lāce, Oļģerts Aleksāns, Kaspars Krauklis, Viesturs Šķibelis, Nataļja Levina, Antons Mačāns

The countries of the world and of the European Union (EU) are developing hydrogeological models (HM) where by means of computer modeling the information necessary for the groundwater management is obtained. In 1996, Riga Technical University (RTU), upon the assignment of the former State Geological Survey, established regional HM REMO for the central part of Latvia. REMO does not meet demands of modern water management for the whole country; the REMO plane approximation step of 4,000 meters is too crude. In 2010-2012, RTU has established HM LAMO that includes the whole territory of Latvia and border areas of the neighboring countries. LAMO is a part of the Latvia Shared Environmental Information System. It is supported by the Latvian Environment, Geology and Meteorology Centre. The model comprises geological and hydrogeological information provided by the centre. LAMO accounts for 25 geological layers and its plane approximation step is 500 metres. To ensure compatibility with models of other countries, the worldwide used commercial program Groundwater Vistas is applied for running LAMO. The following results are provided by LAMO: surfaces of geological layers; the digital relief map (terrain) of Latvia with the hydrographical network included; distribution of heads for aquifers; distribution of vertical groundwater flows between aquifers (the infiltration flow is also obtained); the full spatial groundwater flow balance is estimated. LAMO is a powerful tool not only for modeling groundwater resources of Latvia, but it also enables account for interaction between groundwater and surface water sources (meteoric water, lakes, rivers). Creation of LAMO is the first step in its future development as the tool for managing water resources of Latvia. LAMO will also serve as the basis for creating more detailed local models and for implementing transboundary projects with the neighboring countries.


Atslēgas vārdi
hydrogeological models, computer based modeling, management of groundwater resources

Spalviņš, A., Šlangens, J., Lāce, I., Aleksāns, O., Krauklis, K., Šķibelis, V., Levina, N., Mačāns, A. Hydrogeological Model of Latvia, First Results. Datormodelēšana un robežproblēmas. Nr.51, 2012, 4.-12.lpp. ISSN 2255-9124. e-ISSN 2255-9132.

Publikācijas valoda
English (en)
RTU Zinātniskā bibliotēka.
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