Date (Publication)

2016-05-11

Citation identifier

DOI:10.12770/d5da916a-163c-47b9-8a8e-73dcaeec7986

Credit

Ifremer

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Ifremer	BOURILLET Jean-Francois	Jean.Francois.Bourillet@ifremer.fr	Author
LDC Consult	DE CHAMBURE Laurent	gmcarto@ifremer.fr	Author
Ifremer	MENOT Lenaick	Lenaick.Menot@ifremer.fr	Author
Ifremer	SIMPLET Laure	Laure.Simplet@ifremer.fr	Author
Ifremer	LOUBRIEU Benoit	Benoit.Loubrieu@ifremer.fr	Author
Ifremer	Ifremer - Géosciences Marines	gmcarto@ifremer.fr	Publisher
Ifremer	BERMELL Sylvain	gmcarto@ifremer.fr	Point of contact

Maintenance and update frequency

Not planned

Thèmes Sextant

• /Physical Environment/Geology/Geomorphology

GEMET - INSPIRE themes, version 1.0

• Geology

Discipline

• Geomorphology

• Cartographie

• Classification

Place

• Bay of Bisacay

Sous-regions marines

• /Metropolitan France/Bay of Biscay

Thématiques - SIMM

• /Environmental Status/Bathymetry

• /Environmental Status/Geology

• Research

• /Uses and Human Activities/Industry and energy

Use limitation

CC-BY (Creative Commons - Attribution)

Access constraints

Other restrictions

Use constraints

License

Other constraints

Obligation of citation

Spatial representation type

Vector

Denominator

500000

Language

Français

Character set

UTF8

Topic category

• Geoscientific information

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 8.6

Topology level

Geometry only

Geometric object type

Complex

Distribution format

Name	Version
ESRI Shapefile	10

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Ifremer - Sextant		sextant@ifremer.fr	Resource provider

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--metadata-URL	http://dx.doi.org/10.12770/d5da916a-163c-47b9-8a8e-73dcaeec7986	Dataset DOI
WWW:LINK	http://archimer.ifremer.fr/doc/00249/36033/	Archimer documentation - CoralFish
WWW:LINK	http://archimer.ifremer.fr/doc/00320/43162/	Archimer documentation - Maps
WWW:LINK	https://www.cmecscatalog.org/	cmecscatalog.org

OnLine resource

Protocol	Linkage	Name
WWW:LINK	http://dx.doi.org/10.17600/9030060	Campagne BOBGEO 1
WWW:LINK	http://dx.doi.org/10.17600/10020020	Campagne BOBGEO 2
WWW:LINK	http://dx.doi.org/10.17600/92000711	Campagne ZEE 1
WWW:LINK	http://dx.doi.org/10.17600/97010070	Campagne ZEE 2
WWW:LINK	http://dx.doi.org/10.17600/92003411	Campagne SEDIMANCHE 1
WWW:LINK	http://dx.doi.org/10.17600/97010080	Campagne SEDIFAN 1
WWW:LINK	http://dx.doi.org/10.17600/97080070	Campagne SEDIFAN 2
WWW:LINK	http://dx.doi.org/10.17600/9030020	Campagne ESSNAUT 2009
WWW:LINK	http://dx.doi.org/10.17600/8030070	Campagne ESSRESON 08-1
WWW:LINK	http://dx.doi.org/10.17600/8030140	Campagne ESSRESON 08-2
WWW:LINK	http://dx.doi.org/10.17600/10020070	Campagne ESSINF
WWW:LINK	http://dx.doi.org/10.17600/9010030	Campagne VALIDOP

OnLine resource

Protocol	Linkage	Name
OGC:WMS	https://sextant.ifremer.fr/services/wms/gm_geologie	GeomorphoPente_GdG_Bourillet_2016
FILE		GeomorphoPente_GdG_Bourillet_2016

Hierarchy level

Dataset

Statement

Geomorphological analysis of the continental slope of the Bay of Biscay based on a 100m Data Terrain Model (DTM). This DTM is a synthesis of data acquired during sea surveys ZEE 1, ZEE 2, Sedimanche, Sedifan 1, Sedifan 2, EssNaut 2009, EssReson08, ValidOp, BOBGeo 1, BOBGeo 2, EssInf.

The geomorphological classification was developed for the geomorphological maps at a scale of 1.100,000 in the framework of the European FP7 project Coralfish (Bourillet  J-F. (Coord.), de Chambure L., Loubrieu B., 2012. Sur les traces des coraux d'eau froide du golfe de Gascogne. 8 cartes bathymorphologiques et géomorphologiques au 1/100.000. Cold water corals of the Bay of Biscay: 8 bathymorphological and geomorphological maps at 1:100,000., Editions Quae ed.).

It is base on geostatistical methods (de Chambure L., Bourillet, J-F., Bartel, C., 2013, Geomorphological classification in Bay of Biscay. Morpho-sedimentary mapping of the seabed in selected areas. Rapport INT. Ifremer-REM/GM/LES, 51p.).

Parameters, directly derived from the bathymetry (average depth, regional and local slope, …) allow the delimitation of the main physiographic sectors (megageoforms) such as shelf, slope and continental rise.

More complex parameters (drainage networks, thalwegs, weighted distance to the nearest thalweg) point out the geological structures : on the northern continental margin of theBay of Biscay, canyons are major elements of the shape of the sea floor (Bourillet et al., 2006). These parameters are used to differentiate canyons to interfluves areas.

Meso and macrogeoforms (km and 10xkm) are then classified within the canyon areas (river bed, flank, fall, gully, …) and the interfluve areas (crest, terrace, escarpment, …) and their connectivity is checked. These geoforms are also identified accordoing to the CMECS standard, Coastal and Marine Ecological Classification Standard (Madden, C, et al., 2008. Coastal and Marine Ecological classification Standard. NOAA and NatureServe. 77p. ; Greene, H.G., et al., 2007a. Construction of digital potential marine benthic habitat maps using a coded classification scheme and its application. In: B.J. Todd and H.G. Greene (eds.), Mapping the seafloor for habitat characterization. Geol. Assoc. Can. Spec. Pap. 47, pp. 141-155).

Shapefile was built from geostatistical interpretation DTM (Isatis software) using conversion tool "Raster to polygon" from ArcGIS software with the option "simplify polygons" ticks.

Metadata

File identifier

d5da916a-163c-47b9-8a8e-73dcaeec7986 XML

Metadata language

Français

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2024-04-05T07:43:29.315Z

Metadata standard name

ISO 19115:2003/19139 - SEXTANT

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Ifremer	SIMPLET Laure	Laure.Simplet@ifremer.fr	Point of contact

Other language

Language	Character encoding
English
French	UTF8