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THE NEW METHOD FOR FINDING BORDERS OF GROUNDWATER RECHARGE, TRANSIT AND DISCHARGE AREAS

Aivars Spalviņš

First published: 2018-06-20https://doi.org/10.5593/sgem2018/3.1/s12.098View metrics

Abstract

Hydrogeologists are interested in borders that separate the groundwater recharge, transit, discharge (RTD) areas. Unfortunately, no good method exists for finding them. In the course of using the hydrogeological model (HM) of Latvia (LAMO) scientists of Riga Technical University have developed the new method that generalizes the RTD concept and gives locations of the borders. LAMO is run by the commercial program Groundwater Vistas (GV). The GV program provides the velocities vz for the vertical and vx, vy for the horizontal groundwater flows. These velocities are used to create the function r for describing the borderlines of the RTD areas. The function r originates the four areas: R, positive T (+T), negative T (-T), D. The value r = 0 denotes the border that separates the +T and ?T areas. The values r = 1; r = -1 depict the borders between the R, and +T; -T and D areas, correspondingly. The new method will be applied for investigating the regional groundwater processes that are modelled by LAMO.

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Publication details

Title
THE NEW METHOD FOR FINDING BORDERS OF GROUNDWATER RECHARGE, TRANSIT AND DISCHARGE AREAS
Authors
Aivars Spalviņš
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2018
Pages
751-758
SWS Citekey
Spalvins201812751758
ISSN
1314-2704
ISBN
978-619-7408-42-3
Language
en
Publication type
Conference Paper
Keywords
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