Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia
The overall objective of this work is to apply GIS-based cost distance modeling (CDM) to site catchment modeling and analysis of prehistoric (Solutrean) sites in Andalusia. The implementation of a GIS-method for slope-based CDM was explained in detail, so that it can be replicated easily in future s...
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doaj-7cdbece7f0ae4e9fbbf15737079bac6f2020-11-24T22:59:52ZengMDPI AGISPRS International Journal of Geo-Information2220-99642017-01-01623610.3390/ijgi6020036ijgi6020036Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in AndalusiaDaniel Becker0María de Andrés-Herrero1Christian Willmes2Gerd-Christian Weniger3Georg Bareth4Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, GermanyInstitute of Prehistoric Archaeology, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, GermanyInstitute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, GermanyInstitute of Prehistoric Archaeology, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, GermanyInstitute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, GermanyThe overall objective of this work is to apply GIS-based cost distance modeling (CDM) to site catchment modeling and analysis of prehistoric (Solutrean) sites in Andalusia. The implementation of a GIS-method for slope-based CDM was explained in detail, so that it can be replicated easily in future studies. Additional cost components, vegetation and stream networks, were included in the method. The presented CDM approach uses slope rasters as input data, which were derived from digital elevation models (DEMs). Various DEMs that differ in cell size, accuracy and other characteristics can be applied to this method. Thus, a major goal of this work is to investigate the influence different publicly available DEMs (SRTM, ASTER GDEM, EU-DEM, official 5-m/10-m cell size DEMs) have on the results of GIS-based CDM. While the investigation was conducted on sites from different chronocultural periods, a case study was performed on Solutrean sites in order to test the CDM approach by producing actual results and then comparing and interpreting them from an archaeological perspective. The results of the DEM evaluation with resampled horizontal resolutions show a clear influence of the DEM cell size on the modeled catchment area sizes. The investigation also indicates that this influence can be superimposed by other factors, such as noise and residuals of filtered anthropogenic features, when using DEMs of different origins.http://www.mdpi.com/2220-9964/6/2/36slope-dependent cost functionsTobler’s hiking functionsite catchment analysis (SCA)digital elevation model (DEM)GIS-based cost distance modeling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Daniel Becker María de Andrés-Herrero Christian Willmes Gerd-Christian Weniger Georg Bareth |
spellingShingle |
Daniel Becker María de Andrés-Herrero Christian Willmes Gerd-Christian Weniger Georg Bareth Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia ISPRS International Journal of Geo-Information slope-dependent cost functions Tobler’s hiking function site catchment analysis (SCA) digital elevation model (DEM) GIS-based cost distance modeling |
author_facet |
Daniel Becker María de Andrés-Herrero Christian Willmes Gerd-Christian Weniger Georg Bareth |
author_sort |
Daniel Becker |
title |
Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia |
title_short |
Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia |
title_full |
Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia |
title_fullStr |
Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia |
title_full_unstemmed |
Investigating the Influence of Different DEMs on GIS-Based Cost Distance Modeling for Site Catchment Analysis of Prehistoric Sites in Andalusia |
title_sort |
investigating the influence of different dems on gis-based cost distance modeling for site catchment analysis of prehistoric sites in andalusia |
publisher |
MDPI AG |
series |
ISPRS International Journal of Geo-Information |
issn |
2220-9964 |
publishDate |
2017-01-01 |
description |
The overall objective of this work is to apply GIS-based cost distance modeling (CDM) to site catchment modeling and analysis of prehistoric (Solutrean) sites in Andalusia. The implementation of a GIS-method for slope-based CDM was explained in detail, so that it can be replicated easily in future studies. Additional cost components, vegetation and stream networks, were included in the method. The presented CDM approach uses slope rasters as input data, which were derived from digital elevation models (DEMs). Various DEMs that differ in cell size, accuracy and other characteristics can be applied to this method. Thus, a major goal of this work is to investigate the influence different publicly available DEMs (SRTM, ASTER GDEM, EU-DEM, official 5-m/10-m cell size DEMs) have on the results of GIS-based CDM. While the investigation was conducted on sites from different chronocultural periods, a case study was performed on Solutrean sites in order to test the CDM approach by producing actual results and then comparing and interpreting them from an archaeological perspective. The results of the DEM evaluation with resampled horizontal resolutions show a clear influence of the DEM cell size on the modeled catchment area sizes. The investigation also indicates that this influence can be superimposed by other factors, such as noise and residuals of filtered anthropogenic features, when using DEMs of different origins. |
topic |
slope-dependent cost functions Tobler’s hiking function site catchment analysis (SCA) digital elevation model (DEM) GIS-based cost distance modeling |
url |
http://www.mdpi.com/2220-9964/6/2/36 |
work_keys_str_mv |
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