Figure 9: Sink filling in ArcHydro illustrated with cross Stream Definition Initiate stream at certain sections of DEM’s. Filling of depressions is an iterative threshold value from process until flow can occur continuously from H to A (a) flow accumulation grid (Wang & Liu, 2006). Stream Convert stream raster to Segmentation Polygon Data interpretation After all data analysis steps were executed, the data could be compared to successfully answer the research questions and write this report. As such, the effectiveness of each data source was analyzed by interpreting the mapped surface area size of each data source separately. Furthermore, the effectiveness between the data sources are evaluated. Finally, knowledge gaps and recommendations for further research is presented. Results To illustrate a more productive overview of the visualization of the dataset, the entire research area has been divided into 9 ‘catchments’. This subdivision is based on several criteria, which will become evident hereafter in the results. The subdivisions are mainly based on artificial demarcation of agricultural areas or forests, which are distinguished via corridors, such as roads and channels (or simply forested lines). However, the type of paleoriver morphology is also taken into account. These catchments are illustrated in figure 10 and the general locations listed in table 2. Figure 10: Extent of research area and current Hammerfließ channel with subvisions of catchments Background topography is the “Digitales Navigationsmodell” (DNM) WMS, retrieved from geospatial information website Brandenburg (see also appendix F). Table 2: Catchment numbers in figure 10 with location name. The names are derived from nearby towns, and villages. Catchment number Location 1 Baruth 2 Schöbendorfer Busch 3 Horstwalde 4 Northeast Horstmühle 5 Northwest Horstmühle 6 Schönefeld 7 Southeast Gottow 8 Northwest Gottow 9 Luckenwalde Conventional mapping techniques Geological Outline The first results to be analyzed were the substrate map, geomorphological map and geological maps (figure 11; appendix G). These maps yielded results in two different ways: by indicating potential remains of paleochannels through presence of substratum containing (fluvial) organic matter (1), or through presence of sandy material, attributed to Aeolian dunes, which demarcates paleochannels to a smaller area (2). First of all, all geological maps generally illustrated a coinciding presence of dunes
Stream Definition Initiate stream at certain threshold value from flow accumulation grid Stream Segmentation Convert stream raster to Polygon Figure 9: Sink filling in ArcHydro illustrated with cross sections of DEM’s. Filling of depressions is an iterative process until flow can occur continuously from H to A (a) (Wang & Liu, 2006). Data interpretation After all data analysis steps were executed, the data could be compared to successfully answer the research questions and write this report. As such, the effectiveness of each data source was analyzed by interpreting the mapped surface area size of each data source separately. Furthermore, the effectiveness between the data sources are evaluated. Finally, knowledge gaps and recommendations for further research is presented. Results To illustrate a more productive overview of the visualization of the dataset, the entire research area has been divided into 9 ‘catchments’. This subdivision is based on several criteria, which will become evident hereafter in the results. The subdivisions are mainly based on artificial demarcation of agricultural areas or forests, which are distinguished via corridors, such as roads and channels (or simply forested lines). However, the type of paleoriver morphology is also taken into account. These catchments are illustrated in figure 10 and the general locations listed in table 2. Figure 10: Extent of research area and current Hammerfließ channel with subvisions of catchments Background topography is the “Digitales Navigationsmodell” (DNM) WMS, retrieved from geospatial information website Brandenburg (see also appendix F). Table 2: Catchment numbers in figure 10 with location name. The names are derived from nearby towns, and villages. Catchment number Location 1 Baruth 2 Schöbendorfer Busch 3 Horstwalde 4 Northeast Horstmühle 5 Northwest Horstmühle 6 Schönefeld 7 Southeast Gottow 8 Northwest Gottow 9 Luckenwalde Conventional mapping techniques Geological Outline The first results to be analyzed were the substrate map, geomorphological map and geological maps (figure 11; appendix G). These maps yielded results in two different ways: by indicating potential remains of paleochannels through presence of substratum containing (fluvial) organic matter (1), or through presence of sandy material, attributed to Aeolian dunes, which demarcates paleochannels to a smaller area (2). First of all, all geological maps generally illustrated a coinciding presence of dunes
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