Digital Elevation Model 1m mosaic data (Section 1), based on data from Bezirksregierung Köln

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Title:Main Title: Digital Elevation Model 1m mosaic data (Section 1), 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
Creators:scilands GmbH (Gesellschaft zur Bearbeitung digitaler Landschaften) (Owner), Bezirksregierung Köln (GEObasis.nrw) (Resource Provider)
Contributor:Guido Waldhoff (Distributor)
Publisher:CRC/TR32 Database (TR32DB)
Publication Year:2013
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_mosaic_tiles_Section_1.zip
Data Type:Image - Image
Size:1 Datasets
File Size:1.8 GB
Dates:Created: 01.01.2008
Issued: 01.01.2013
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:13.02.2013
Metadata Last Updated:14.04.2021
Subproject:Z1
Funding Phase:2
Metadata Language:English
Metadata Version:V50
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