File Geodatabase Feature Class
Tags
Graubuenden, tectonics, Müstair Valley, Engadine Valley, Parc Naziunal Svizzer, Swiss National Park, Engadin, Schweizerischer Nationalpark, tectonical map
See general description
The tectonical map «Dössegger» covers the Engadine Valley, the Müstair Valley and the Swiss National Park. TEKT differs between 22 tectonical units and is ment to give an overview on the tectonical-geological situation of the area.
GIS-SNP
The data set TEKT belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
Extent
West | 9.905840 | East | 10.607581 |
North | 46.861738 | South | 46.497263 |
Maximum (zoomed in) | 1:5,000 |
Minimum (zoomed out) | 1:150,000,000 |
GIS-SNP
publication date
For scientific use, others on request
The data set TEKT belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
mail to Ruedi Haller, rhaller@nationalpark.ch
Internal feature number.
ESRI
Feature geometry.
ESRI
Length of feature in internal units.
ESRI
Area of feature in internal units squared.
ESRI
Internal feature number.
ESRI
Feature geometry.
ESRI
Area of feature in internal units squared.
ESRI
Perimeter of feature in internal units.
ESRI
Internal feature number.
ESRI
User-defined feature number.
ESRI
Code of tectonical units
The tectonical map «Dössegger» covers the Engadine Valley, the Müstair Valley and the Swiss National Park. TEKT differs between 22 tectonical units and is ment to give an overview on the tectonical-geological situation of the area.
See general description
publication date
For scientific use, others on request
The data set TEKT belongs to the Scientific Comission of the Swiss NationalparkWNPK. For scientific purposes concerning the Swiss National Parc these data can be obtained via the GIS-SNP-WEBMASTER. An individual contract between the data user on one side and the WNPK and the Swiss National Park GIS on the other side settles the intended use, the duration of use, the copyright for publication etc. of the delivered data.
As the teconical map is much less complicated then the geological map SCITEX-digitfiles (for line symbols) were transferred into ARC/INFO-coverages. For verification the obtained polygons were compared to the printed map. Label points and attributes were added after verification of polygon-geometry.
check of completness not possible
unknown
TEKT is a part of the «Geologische Spezialkarte Nr. 122». The (printed) map was produced using the cartographic software SCITEX thus delivering digital data which had to be transferred into ARC/INFO.
Cartography and printing was done by Kümmerly+Frey AG, Bern Switzerland.
The following processing steps were necessary:
- Conversion of SCITEX-rasterfiles into tif-format, one file per color layer (Kümmerly+Frey AG, Bern)
- Integration of tif-format into Swiss National Park GIS with the ARC-command IMAGEGRID: one grid per tif-file
- Vectorisation of raster-files with the ARC-command GRIDPOLY, one coverage per grid, and Verfication of SCITEX-codes and codes of geological units
- Reunion of different coverages into one coverage containing all geological polygons with the ARC-command APPEND
- Elimination of sliver polygons (less then 100 sqm) with the ARC-command ELIMINATE and generalization of arcs with the ARC-command GENERALIZE (weed tolerance 2 m)
- Transformation into Swiss Coordinate System with the ARC-command TRANSFORM
An updata was necessary since the process mentioned under Data Capture produced some artefacts. Due to the SCITEX-rasterfiles some polygonshape artefacts occured where several polygons or color files joined. The artefacts occured in an E to W direction mainly. Therefore the process of integrating these data was repeated (from step two):
- Merging of the different grids to one grid containing all geological information with the GRID-statement IF/ELSE
- Elimination of artefacts with a filter using the GRID-function FOCALMAJORITY
- Generalization of the boundaries between different geological units (GRID-zones) with the GRID-function BOUNDARYCLEAN
- Transformation into Swiss Coordinate System with the ARC-command GRIDWARP
- Vectorisation with ARC-command GRIDPOLY
- Elimination of sliver polygons (less then 100 sqm) with the ARC-command ELIMINATE and generalization of arcs with the ARC-command GENERALIZE (weed tolerance 3 m)
- Replacement of the former coverage GEOL
The info-files TEKT.PAT (geometry-file)contains the geometrical information. TEKT consists of 22 teconical units which are distributed to 108 polygons. To link the to a relate in ARC/INFO is necessary.
mail to Ruedi Haller, rhaller@nationalpark.ch