Pazemes ūdeņu plūsmu analīze ūdensgūtnes Ogsils apkārtnē
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Latvijas Universitāte
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Abstract
Bakalaura darbā pētītas pazemes ūdeņu plūsmas ūdensgūtnes Ogsils apkārtnē, izmantojot hidroģeoloģisko modelēšanu. Teritorijai raksturīgi sarežģīti hidroģeoloģiskie apstākļi, ko nosaka ielejveida iegrauzumi D2ar ūdens horizontā un pazemes ūdens ieguve no tā. Pētījums veikts divos etapos, sagatavojot konceptuālos modeļus dažādiem hidroģeoloģisko apstākļu shematizācijas variantiem, un tad atsevišķiem variantiem izstrādājot detalizētus matemātiskos modeļus.
Konceptuālie modeļi sagatavoti datorprogrammā TopoDrive. Hidroģeoloģiskā modeļa izveidei izmantota python programmēšanas valoda un skripti, rezultāti vizualizēti datorprogrammās MeshEditor un HifiGeo.
Secināts, ka pētāmajā teritorijā pazemes ūdens plūsmu ietekmējošie faktori ir zemes virsmas reljefs, gruntsūdens līmenis, ģeoloģisko slāņu neviendabība, ielejveida iegrauzumi, filtrācijas īpašības un infiltrācija.
Atslēgvārdi: konceptuālā un matemātiskā modelēšana, 3D hidroģeoloģiskais modelis, TopoDrive, python, HiFiGeo.
Groundwater flow patterns in vicinity of Ogsils wellfield was analysed during the Bachelor’s paper study. The territory has complex hydrogeological conditions due to the presence of subglacial valleys cut in the Middle Devonian Arukila aquifer and water abstraction from it. Study was carried out in two stages, developing conceptual models for different hydrogeological concepts, followed by detailed numerical hydrogeological modeling for selected concepts. Conceptual models were developed in software TopoDrive. The numerical hydrogeological model was developed using python programming language and scripts, the results visualized in software MeshEditor and HifiGeo. Obtained results lead to a conclusion that the most important factors influencing groundwater flow are topography, groundwater level, the heterogeneity of geological layers, subglacial valleys, hydraulic conductivity and recharge. Keywords:conceptual and numerical modeling,3D hydrogeological model,TopoDrive,python,HifiGeo
Groundwater flow patterns in vicinity of Ogsils wellfield was analysed during the Bachelor’s paper study. The territory has complex hydrogeological conditions due to the presence of subglacial valleys cut in the Middle Devonian Arukila aquifer and water abstraction from it. Study was carried out in two stages, developing conceptual models for different hydrogeological concepts, followed by detailed numerical hydrogeological modeling for selected concepts. Conceptual models were developed in software TopoDrive. The numerical hydrogeological model was developed using python programming language and scripts, the results visualized in software MeshEditor and HifiGeo. Obtained results lead to a conclusion that the most important factors influencing groundwater flow are topography, groundwater level, the heterogeneity of geological layers, subglacial valleys, hydraulic conductivity and recharge. Keywords:conceptual and numerical modeling,3D hydrogeological model,TopoDrive,python,HifiGeo