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Publikācija: Computer Based Methods for Including Hydrographical Network in Regional Hydrogeological Model of Latvia

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Nosaukums oriģinālvalodā Computer Based Methods for Including Hydrographical Network in Regional Hydrogeological Model of Latvia
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.2. Elektrotehnika, elektronika, informācijas un komunikāciju tehnoloģijas
Autori Jānis Šlangens
Aivars Spalviņš
Inta Lāce
Kaspars Krauklis
Viesturs Šķibelis
Antons Mačāns
Atslēgas vārdi hydrogeological models, hydrographical network, computer based modelling, Latvia
Anotācija In 2012, the hydrogeological model (HM) of Latvia has been established, by the Environment Modelling Centre team of Riga Technical University, as an element of the Latvian shared environmental information system. The 3D –body of the geological environment to be modeled is represented by 95160125 finite difference grid which plane approximation step is 500 meters. HM is established in the framework of the commercial program Groundwater Vistas (GV) which includes the worldwide used MODFLOW system for running the model. As initial information for creating the model serves a set of digital maps (elevations of geological layer surfaces, permeability of layers, boundary conditions, etc.). Elements of hydrographical network (rivers, lakes, Baltic sea) and the digital relief map serve as boundary conditions. The map is applied on the HM top surface. The digital relief controls infiltration flow through the aeration zone and also accounts for embedding in HM lakes and areas of Baltic sea [2]. Although, rivers and lakes are included in the relief, rivers are also joined with HM layers, as universal boundary conditions of the GV system. This kind of boundary conditions includes not only river water levels but also river bed conductivity elements.
Hipersaite: http://scientific-conference2012.rtu.lv/sites/default/files/pdf/RTU_Conference_2012.pdf 
Atsauce Šlangens, J., Spalviņš, A., Lāce, I., Krauklis, K., Šķibelis, V., Mačāns, A. Computer Based Methods for Including Hydrographical Network in Regional Hydrogeological Model of Latvia. No: Riga Technical University 53rd International Scientific Conference: Dedicated to the 150th Anniversary and the 1st Congress of World Engineers and Riga Polytechnical Institute / RTU Alumni: Digest, Latvija, Rīga, 11.-12. oktobris, 2012. Riga: Riga Technical University, 2012, 7.-7.lpp. ISBN 978-9934-10-360-5.
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