Digital Elevation Model 1m single tiles (Section 3), based on data from Bezirksregierung Köln
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Title: | Main Title: Digital Elevation Model 1m single tiles (Section 3), based on data from Bezirksregierung Köln |
Description: | Abstract: Digital Elevation Model (DEM) of German parts of Rur-catchment. For certain analyses or algorithms that intend to map surface processes it is imperative to model in a high resolution. The measuring point density of the original date of the Rur chatchment justifies the generation of a DGM with 1 m spatial resolution. The density of measurement points located between 0.3 measurements/m² and 1.7 measurements/m². First of all, data gaps were closed by using the SAGA-module and noise was removed by using a modified, variable Lee-filter. Removing the noise also unveiled hidden geomorphological information. For the analysis of current geomorphological processes anthropogenic landforms like embankments, sunken roads or railways, dikes, open cast mining areas etc. are important. When classifying certain relief areas a DGM without anthropogenic landforms is needed. Therefore two datasets have been created. A resampling method developed by the scilands GmbH using local minima and maxima preserved the anthropogenic features which could then be detected and removed. Therefore, a filter (SAGA-module) was improved and enabled to identify nearly all artificial dikes in the landscape. A manual correction took place afterwards. Finally, the SAGA-module and the Lee-filter were used again to fill in the missing values. Finally, all datasets were combined whilst trying to produce a fluent passage from one dataset to the other. |
Responsible Party
Creator: | scilands GmbH (Gesellschaft zur Bearbeitung digitaler Landschaften) (Owner) |
Contributor: | Guido Waldhoff (Contact Person) |
Publisher: | CRC/TR32 Database (TR32DB) |
Publication Year: | 2012 |
Topic
TR32 Topic: | Topography |
Related Subproject: | Z1 |
Subjects: | Keyword: Catchment GEMET Thesaurus entries: model, raster |
Geogr. Information Topic: | Elevation |
File Details
Filename: | DEM_Sciland_1m_single_tiles_section_3.zip |
Data Type: | Image - Image |
Size: | 1 Datasets |
File Size: | Unknown |
Dates: | Created: 01.01.2008 Issued: 01.01.2012 |
Mime Type: | application/zip |
Data Format: | TIFF |
Language: | German |
Status: | Completed |
Constraints
Download Permission: | Only Project Members |
General Access and Use Conditions: | Access and use only for CRC/TR32 members. |
Access Limitations: | Access and use only for CRC/TR32 members. |
Licence: | [TR32DB] Data policy agreement |
Geographic
Specific Information - Geodata
Lineage: | Complete |
Spatial Resolution: | Resolution: 1 m |
Spatial Representation: | Grid |
Presentation Form: | Digital Map |
Reference System: | DHDN / 3-degree Gauss-Kruger zone 2 (31466) |
Scope: | Dataset |
Initiative Type: | Collection |
Metadata Details
Metadata Creator: | Guido Waldhoff |
Metadata Created: | 04.09.2012 |
Metadata Last Updated: | 14.04.2021 |
Subproject: | Z1 |
Funding Phase: | 2 |
Metadata Language: | English |
Metadata Version: | V50 |
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Dataset Statistics
Page Visits: | 334 |
Metadata Downloads: | 2 |
Dataset Downloads: | 3 |
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