Data · collection
Digital Elevation Models derived from areal photography and SPOT Imagery, ISTAR (Imagerie STereo Appliquee au Relief)
Listed in NASA Earthdata CMR
Description
The following text was abstracted from Bruce Gittings' Digital Elevation Data Catalogue: 'geo.ed.ac.uk/home/ded.html'. The catalogue is a comprehensive source of information on digital elevation data and should be retrieved in its entirety for additional information. ISTAR (Imagerie STereo Appliquee au Relief or, in english, Stereo Imagery Applied to Relief) is a company specialising in DEM production by automatic correlation techniques.
It makes use of aerial photographs or satellite imagery and markets two products ranges, namely AERIAL and SPOT. The DEM-derived products include orthoimages, area features by automatic extraction, linear features by semi-automatic extraction, computed contours lines and image maps. DEM production may also be based on digitized contour maps.
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Since 1986, ISTAR has produced a total area of 1 million sq.km. from SPOT images at different resolutions (typical pixel size: 40m for XS, 20m for PA; typical Z standard deviation: 1/2 pixel). ISTAR can meet very large capacity requirements (1 to 20 GB) of complex databases including standard components (DEMs, Orthoimages, Land Cover and Vectors Files, Scanned Maps) at different scales and formats. All products and their references are contained in a price list and are described in technical documentation.
For further information contact: Alain Beinish Tel: +33 93 95 72 30 ISTAR FAX: +33 93 95 83 29 Bat. 2, Espace Beethoven Route des Lucioles 06560 VALBONNE FRANCE
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214585699-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214585699-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- AIRCRAFT · Contour Maps · Digital Elevation Model · Digital Elevation/Terrain Model (Dem) · Geomorphic Landforms/Processes · High Resolution Visible Imaging System · Not provided · Systeme Probatoire Pour l'Observation de la Terre-3 · Terrain Elevation · Topographical Relief Maps
- Inferred from text
- Geophysics 69% · Image 75% · Satellite remote sensing 65% · Text 75%
Provenance · 1 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214585699-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3706 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (69%) |
| concepts[instrument].gcmd_instrument:hrv | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/geomorphic-landforms-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/topography/terrain-elevation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/topography/terrain-elevation/contour-maps | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/topography/terrain-elevation/digital-elevation-terrain-model-dem | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/topography/terrain-elevation/topographical-relief-maps | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:remote-sensing | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[modality].local:modality:text | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[platform].gcmd_platform:aircraft | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:dem | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:spot-3 | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |