French Guiana landform map 2012

This landform dataset was built using Shuttle Radar Topography Mission (SRTM) data with full resolution (1 arc sec ~ 30m). This map aims at evaluating the geodiversity of natural areas. Classes correspond to different types of landforms. Taking into account data accuracy, we recommend using the landform map for scales beyond 1: 100 000 to 1: 250 000. The map was produced at the request of the French Guianan public forest manager of the Office National des Forêts (ONF).

Date (Creation): 2012-01-01

Identifier: CEBA_landscape2012

Status: Completed

Point of contact

Office national des forêts (ONF) - Guitet, Stéphane

Maintenance and update frequency: Not planned

GEMET - INSPIRE themes, version 1.0 INSPIRE themes

Geology

GEMET - Concepts, version 2.4

geomorphology
relief (land)
landform

Geounits

Americas
South America
France
French Guiana

Keywords

national coverage
labex CEBA

Place

Use limitation: Please get in touch with a point of contact.

Access constraints: Intellectual property rights

Classification: Unclassified

Spatial representation type: Grid

Denominator: 100000

Metadata language: eng

Character set: UTF8

Topic category

Geoscientific information

Begin date: 2012-01-01

End date: 2012-01-01

Supplemental Information: Bibliography: Guitet S.. Cornu J.-F.. Brunaux O.. Betbeder J.. Carozza J.-M. Richard-Hansen C.(2013) : Landform & landscape mapping. French Guiana (South America). Journal of Map. DOI:10.1080/17445647.2013.785371

Reference system identifier: EPSG / WGS 84 / UTM zone 22N (EPSG:32622) / 7.9

Distribution format

ESRI Shapefile ( 1.0 )

OnLine resource: Guitet S.. Cornu J.-F.. Brunaux O.. Betbeder J.. Carozza J.-M. Richard-Hansen C.(2013) : Landform & landscape mapping. French Guiana (South America). Journal of Map. DOI:10.1080/17445647.2013.785371 ( WWW:LINK-1.0-http--link )

Hierarchy level: Dataset

Statement: Derived digital elevation model (DEM) was used as a digital terrain model (DTM). The entire territory was segmented into 224 000 landform units on the basis of an original object-focused approach (Cornu et al., in prep). Map was compared to topographic field data that have been collected on 92 transects totalizing 260 km length. These data including natural habitat descriptions, topographic profiles, and soil collections were collected on 24 sites distributed through French Guiana in order to represent the maximum of geographic and ecological variability. Habitat descriptions are used to validate the hydromorphy model. Slope. elevation levels and topographic position occurrence measured on the transect help to interpret landforms and landscape classes. A Garmin GPS (60CSX) was used to geolocalize the data. Slope angles and distances were measured with Vertex laser rangefinder.