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Water 2016, 8(6), 230; doi:10.3390/w8060230

Estimation of Polder Retention Capacity Based on ASTER, SRTM and LIDAR DEMs: The Case of Majdany Polder (West Poland)

1
Institute of Construction and Geoengineering, Poznan University of Life Sciences, 60-637 Poznań, Poland
2
Department of Land Improvement, Environmental Development and Geodesy, Poznan University of Life Sciences, 60-637 Poznań, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Thilo Hofmann
Received: 1 March 2016 / Revised: 12 May 2016 / Accepted: 23 May 2016 / Published: 28 May 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. View Full-Text
Keywords: polder; DEM accuracy; LIDAR; SRTM; ASTER; TIN; volume of polder polder; DEM accuracy; LIDAR; SRTM; ASTER; TIN; volume of polder
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Walczak, Z.; Sojka, M.; Wróżyński, R.; Laks, I. Estimation of Polder Retention Capacity Based on ASTER, SRTM and LIDAR DEMs: The Case of Majdany Polder (West Poland). Water 2016, 8, 230.

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