estimation of polder retention capacity based on aster, srtm and lidar dems: the case of majdany polder (west poland)
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ID: 150437
2016
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Abstract
This study compares four digital elevation models (DEMs), based on various data sources, to define polder retention capacities. Two commercial and two publically available, free of charge data sources were used. Commercial sources are DEMs based on aerial images and LIDAR (Light Detection and Ranging) data. Free data source DEMs generated are based on: SRTM (Shuttle Radar Topography Mission) and ASTER GDEM (ASTER Global Digital Elevation Model). In addition, the impact of the spatial resolution of the numerical terrain model on the calculated polder volume was evaluated. A DEM based on LIDAR data was used as the reference model and was supplemented with our own geodetic GPS (Global Positioning System) measurements. In flood modeling and management, including retention of river valleys and polders, it is necessary to properly estimate their capacity and the relation between capacity and water level. The study showed the impact of quantitative and qualitative data sources in determining the retention capacity of a polder.
| Reference Key |
walczak2016waterestimation
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| Authors | ;Zbigniew Walczak;Mariusz Sojka;Rafał Wróżyński;Ireneusz Laks |
| Journal | Journal of food biochemistry |
| Year | 2016 |
| DOI |
10.3390/w8060230
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| URL | |
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