Tag Archives: GRASS GIS

xxx J. Dumpis, A. Lagzdins and I. Sics
Delineation of catchment area for the lake Kisezers for environmental sustainability
Abstract |

Delineation of catchment area for the lake Kisezers for environmental sustainability

J. Dumpis¹²*, A. Lagzdins¹ and I. Sics²

¹Latvia University of Life Sciences and Technologies, Department of Environmental Engineering and Water Management, 2 Liela Street, LV-3001 Jelgava, Latvia
²Institute of Food Safety, Animal Health and Environment ‘BIOR’, Lejupes Street 3, LV-1076 Riga, Latvia
*Correspondence: janisdumpis94@gmail.com

Abstract:

The study aims to develop a methodology for the delineation of a catchment area. The methodology includes the processing and analysis of LiDAR data, on-field height measurement data, bathymetric data, hydrological data. High definition catchment area maps are successfully constructed. Catchment area influencing factors such as water mass movement and changes in land use are determined. Lake Kisezers was selected as the study site because the location of the lake, the availability of data, the feasibility studies, the economic potential of the catchment area determine the topicality and significance of this study. The lake catchment area covers multiple rivers, urban and rural territories, forests, high and low terrains. In the catchment area of Lake Kisezers many hydrologic monitoring stations with continuous data are situated. In the research area, we can study how those factors interact with the possibility to perform a catchment area delineation. The final result of this study is the catchment area for Lake Kisezers. The research results are high-definition and can be used to understand locations of floodplains, territories with malfunctioning drainage systems. The repetition of this study requires extensive knowledge of cartography, experience in working with terrain and bathymetry data, wide range of GIS knowledge. The research was performed using computer software such as QGIS and GRASS GIS. The application of the methodology used in this study can serve as an example for delineation and analysis of a catchment area for other lakes and rivers. Overall, the study is a success.

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