File Geodatabase Table
Tags
Schweizerischer Nationalpark, Swiss National Park, Geologie, geological map, Engadin, geology, Parc Naziunal Svizzer, Graubuenden
See general description
The info-file GEOL.ATR (attribute-file) contains the additional user defined attributes of the coverage GEOL. The Geological Map «Dössegger» covers the entire area of the Swiss National Park and some of it's surroundings. GEOL differs between 57 geological units.
GIS-SNP
The data set GEOL 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
There is no extent for this item.
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
GIS-SNP
ground condition
For scientific use, others on request
The data set GEOL 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
Name of geological unit
ESRI
Describtion of geological unit
ESRI
The info-file GEOL.ATR (attribute-file) contains the additional user defined attributes of the coverage GEOL. The Geological Map «Dössegger» covers the entire area of the Swiss National Park and some of it's surroundings. GEOL differs between 57 geological units.See general descriptionground conditionFor scientific use, others on requestThe data set GEOL 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.unknowncheck of completness not possibleunknownAt first it was planed to convert SCITEX-digitfiles (for line symbols) and SCITEX- symplacefiles (for point symbols) into ARC/INFO-coverages. As SCITEX and ARC/INFO are based on very different concepts it was not possible to convert the data allthough specific SCITEX-ARC/INO-interfaces do exist. Digitfiles can only be integrated into ARCO/INFO if the linetype does not change within the same line. While taking over symplacefiles all attributes are lost. Moreover it was not possible to reconstruct correct geological polygons from the digitfiles. For printing and filling out polygons with color SCITEX needs closed polygons but it does not matter wether the lines origin from a geological polygon, a river or a geological dislocation line. Thus many thousend polygons may result but it is not possible to identify them. Therefore it was necessary to integrate the SCITEX-Rasterfiles for the different color layer and vectorise them within ARC/INFO.
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 Item GEOL-CODE contains the code for the geological units. GEOL-CODE is also the relate-item to the info-file GEOL.ATR.
The item BESCHREIBUNG describes the geological units in more detail. The same information can be found on the printed map.
In order to associate the geological units to the tectonical map the item TEKT-CODE was added. It codes the tectonical units found on the tectonical map 1:400'000 and helps to distinguish between identical geological units in different teconical units (e.g. «pairs» of geological units with GEOL-CODE = 10/33, 12/34, 19/35, 20/36, 26/37 have the following TEKT-CODE: 200/333, 212/334, 219/335, 220/336, 226/337).
mail to Ruedi Haller, rhaller@nationalpark.ch