Catàleg IDEC
Terrain Elevation Model of Catalonia 15 x 15 meters
Simple
- Date (Creation)
- 2010-05-18
- Date (Revision)
- 2018-04-01
- Identifier
-
https://www.ide.cat
/
model-digital-terreny-15x15-v2r0
- Date (Publication)
- 2016-12-15
- Other citation details
- Dataset specifications are stated in the document "Especificacions tècniques del Model d'Elevacions del Terreny de Catalunya 15 x 15 metres (MET-15) v2.0", which can be downloaded from ICGC Web page - https://www.icgc.cat/en/Public-Administration-and-Enterprises/Downloads/Elevations/Terrain-elevation-model - and from CCCC Web page - https://datacloud.ide.cat/especificacions/model-digital-terreny-15x15-v2r0-esp-02ca-20110601.pdf
- Purpose
- The dataset is useful for the development of technical studies and for the territorial planning.
https://www.icgc.cat
- GEMET - INSPIRE themes, version 1.0
-
- Elevation
- Place
-
- Catalonia
- Spain
- Europe
- Theme
-
- Dataset of the Cartographic Plan of Catalonia (PCC)
- DTM
- Altitude
- Elevation
- Access constraints
- Other restrictions
- Other constraints
- No conditions apply
- Spatial representation type
- Grid
- Distance
- 15 m
- Metadata language
- Catalan; Valencian
- Character set
- 8859 Part 1
- Topic category
-
- Elevation
))
- Begin date
- 2009-04-01
- End date
- 2018-04-01
Vertical extent
- Minimum value
- -7.2
- Maximum value
- 3141.2
Vertical CS
Vertical datum
- Supplemental Information
- The horizontal extension of the data is described in these metadata in geographic coordinates, containing the minimum and maximum latitude and longitude of the territory of Catalonia. It is, therefore, an approximate geographical area. The vertical extension refers to terrain altitudes. The temporal extension refers to the rang of dates of the flight or flights from which the BT-5M sheets used to produce de elevation model have been elaborated. Since the data comes from the information of the BT-5M sheets that cover the territory of Catalonia, the nodes of the grid in the areas not covered by this database do not have altitude, fact that is represented with the value -9999. On the other hand, it is assigned a value of altitude -8888 to the nodes of the grid in the areas of sea covered by the BT-5M.
- Reference system identifier
- http://www.opengis.net/def/crs/EPSG/0/25831
- Reference system identifier
- http://www.opengis.net/def/crs/EPSG/0/4258
- Distribution format
-
-
ESRI ASCII GRID
(
-
)
-
ESRI ASCII GRID
(
-
)
https://www.icgc.cat
- Units of distribution
- The dataset is distributed by sheets. The surface of terrain covered by each sheet, coincides with the minimum rectangle that contains the sheet of the National Topographic Map 1:50 000 (MTN) with a strip of 30 m.
- OnLine resource
-
Downloader (by sheets)
Data downloading by sheets through direct search in a continuous cartographic background where the place, the product and the format can be chosen.
- OnLine resource
-
WCS Service (description)
Description of the online service that it provides the heights of the requested points.
- OnLine resource
-
WCS service (URL)
Link to access the service
- OnLine resource
-
WCS service (capabilities)
Technical capabilities file
- OnLine resource
-
Information date and other data - on line query
On line tool that provides the variable information specific for each of the sheets in which the data set is cut for distribution purposes.
- OnLine resource
-
Information date and other data - SHP file download
SHP file that provides the variable information specific for each of the sheets in which the data set is cut for distribution purposes.
- OnLine resource
-
Product description
Description of the characteristics of the data set
- Hierarchy level
- Dataset
Domain consistency
- Name of measure
- Compliance with INSPIRE requirements (data)
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
- See the referenced specification. MET-15 data is not intended to achieve compliance with the INSPIRE regulations.
- Pass
- No
Domain consistency
- Name of measure
- Compliance with INSPIRE requirements (metadata-1)
Conformance result
- Date (Publication)
- 2008-12-04
- Explanation
- See the referenced specification. The metadata complies with the mentioned regulation with the exception of the main language of the metadata file, because Catalan is not included in the list of official languages of the European Union.
- Pass
- Yes
Domain consistency
- Name of measure
- Compliance with INSPIRE requirements (metadata-2)
Conformance result
- Date (Publication)
- 2009-12-15
- Explanation
- See the referenced specification
- Pass
- Yes
- Statement
- The terrain elevation model is elaborated from the altimetric information of the Topographic database of Catalonia 1:5.000 (BT-5M) v2.0. The fulfilment of the parameters of quality established for this database in the technical specifications is verified: positional accuracy, consistency and completeness.
- Description
- Generation of the triangular model of the terrain through processes of triangulation. Obtaining of the grid by means of the interpolation of the triangular model. Both processes are carried out at the BT-5M sheet level, using the information of the sheet itself and that of the adjacent ones.
- Description
- Altimetric information of the BT-5M v2.0 sheets that are total or partially included in each MTN sheet enlarged with a strip of 30 m. It includes profiles, spot heights, break lines and contour lines, all them collected on the terrain. The profiles are alignments of points, captured in the same direction, that collect the changes of slope; they are separated around 45 m and the distance between the points of the profile varies among 20 and 60 m depending on the characteristics of the terrain. The spot heights are collected as a cloud of points of variable density, placed in passes, peaks, crests of cliffs and sheers, bottom of depressions, esplanades and transport networks. The break lines complete the morphology of the terrain following ridges, talwegs, slopes, road network, hydrographic network and boundaries of flat areas like reservoirs, ponds and sea. The contour lines are used punctually in areas with little information or of difficult modelling when only the previous elements are collected.
- Denominator
- 5000
- Description
- Union of the grids of the BT-5M sheets included in the distribution sheet.
- Description
- Grids developed in the previous step.
- Description
- Extraction of the terrain elevation models corresponding to the extension of the minimum rectangle that contains each distribution sheet, enlargeds with a strip of 30 m.
- Description
- Grids developed in the previous step.
- Description
- Quality control. The product quality parameters established in the technical specifications are verified.
- Attribute description
- Altitud ortomètrica (en metres) / Altitud ortométrica (en metros) / Orthometric altitude (in meters)
- Content type
- Physical measurement
- File identifier
- model-digital-terreny-15x15-v2r0 XML
- Metadata language
- Catalan; Valencian
- Hierarchy level
- Dataset
- Date stamp
- 2020-07-24T12:46:21
- Metadata standard name
- ISO 19115
- Metadata standard version
- 2003/Cor.1:2006 Geographic Information - Metadata
https://www.icgc.cat
Overviews
Spatial extent
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