Date (Creation)

1992-12-01

Date (Publication)

2023-06-01

Citation identifier

http://www.shom.fr/HOM/GEOL_NATURES_FOND_50

Credit

©Shom

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Shom		bps@shom.fr	Author

Theme

• G chart

• sedimentology

• marine sediment

• seabed map

• sea bed sediment

• Product

• open data

GEMET - INSPIRE themes, version 1.0

• Sea regions

INSPIRE Spatial scope

• Nationales

Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom, 2023. Sea bed sediment 1:50 000"

Use limitation

Product not certified for navigation

Use limitation

Data may be freely used providing that the source is mentioned as follows "Shom, 2023. Sea bed sediment 1:50 000"

Access constraints

License

Use constraints

Other restrictions

Other constraints

Open licence Etalab v. 2.0 avril 2017.

Access constraints

Other restrictions

Other constraints

No public access restrictions.

Classification

Unclassified

Spatial representation type

Vector

Denominator

50000

Language

Français

Character set

UTF8

Topic category

• Oceans

Supplemental Information

* Sediment: An assembly of coarse or fine clastic or biogenic particles transported by one or several means.

* Conglomerate: Sediments in which 50 -100% of the particles are larger than 20 mm.

* Gravel conglomerate: Sediments with a conglomerate matrix and 15 - 50% gravel.

* Gravel: Sediments in which 50 -100% of the particles are between 20 and 2 mm.

* Gravelly sand: A sand matrix comprising 15 - 50% gravel.

* Sand: Sediments in which 50 -100% of the particles are between 2 and 0.5 mm.

* Muddy sand: Sand in which between 5 and 20% of the particles are smaller than 0.05 mm.

* Fine sand: Sediments in which 50 -100% of the particles are between 0.5 and 0.05 mm.

* Fine muddy sandstone: Fine sand in which between 5 and 20% of the particles are smaller than 0.05 mm.

* Silt: Sediments composed of 50 to 100% detrital or biogenic particles between 0.01 and 0.05mm.

* Clay: Sediments composed of 50 to 100% detrital or biogenic particles finer than 0.01mm.

* Mud: Sediments in which 20 -100% of the particles are smaller than 0.05 mm.

Unique resource identifier

WGS 84 (EPSG:4326)

Unique resource identifier

ETRS89 (EPSG:4258)

Distribution format

Name	Version
SHP	inapplicable
GML	3.2

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Shom		data-support@shom.fr	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://data.shom.fr	Shom Geoportal
OGC Web Map Service	https://services.data.shom.fr/INSPIRE/wms/v?service=WMS&request=GetCapabilities&version=1.3.0	NDF_BDD_WLD_WGS84G_WMS
OGC Web Feature Service	https://services.data.shom.fr/INSPIRE/wfs?service=WFS&request=GetCapabilities&version=2.0.0	NDF_BDD_WLD_WGS84G_WFS:natures_fond_50000
WWW:LINK-1.0-http--link	https://services.data.shom.fr/INSPIRE/telechargement/prepackageGroup/NDF-PACK_DL/prepackage/NDF_PACK/file/NDF_PACK.7z	Download service
WWW:LINK-1.0-http--link	https://diffusion.shom.fr	Shom marketplace to download data

Hierarchy level

Dataset

Statement

The information used for the elaboration of this product comes from sedimentary data recorded, digitised and integrated into the Shom Sedimentological Database (BDSS).

The sedimentary characteristics of the seabed come from data from the Shom, BRGM, Ifremer, the Universities of Lille 1, Rouen, Caen, Brest, La Rochelle, Bordeaux I, Corte and Perpignan, IntechMer, the Charente-Maritime Departmental Council, the Charente-Maritime Departmental Directorate for the Territories and the Sea, the Corsican Environment Office, and the Grand Ports Maritime of Bordeaux and Marseille. This map of surface sediments is the synthesis of data collected by various and varied means: lead sniffing, sampling and coring, aerial photographs and Litto3D (for the coastal fringe) and underwater, acoustic imagery by lateral sonar and very high resolution seismic multibeam sounder. The maps made from these data have been published as 45 paper maps from 1990 to 2023 called G charts.

Metadata

File identifier

HOM_GEOL_NATURES_FOND_50.xml XML

Metadata language

Français

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

Produit

Date stamp

2023-06-12T10:43:09

Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Shom		data-support@shom.fr	Point of contact

Other language

Language	Character encoding
English	UTF8