Date (Publication)

2016-04-26

Citation identifier

http://www.shom.fr/HOM/GEOL_NATURES_FOND_150

Point of contact

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

Maintenance and update frequency

As needed

Maintenance note

Le produit "Natures de fond au 150 000" est une synthèse de la connaissance. Il a vocation a faire l’objet d’éditions lorsque de nouveaux levés mettent en évidence une évolution des fonds ou une amélioration de la connaissance.

Type de jeux de donnée - ODATIS

• /Données dérivées/Produits composites

Sous-regions marines

• /Métropole

Thématiques - SIMM

• /Etat du Milieu/Géologie

Theme

• sediment

• sea bed sediment

• Product

• open data

GEMET - INSPIRE themes, version 1.0

• Sea regions

High-value dataset categories

• Observation de la terre et environnement

Use limitation

Data free of use by acknowledging its source. Open licence Etalab v. 2.0 avril 2017.

Use limitation

Product not certified for navigation

Use limitation

Data free of use by acknowledging its source. Open licence Etalab v. 2.0 avril 2017.

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

150000

Language

Français

Character set

UTF8

Topic category

• Oceans

N

S

E

W

Supplemental Information

The characteristics of the surfaces included in the "Sea floor map, 1:150,000" are described in the fields called attributes, as follows:

- TYPEVALUE: Code name for the type of sea floor as per the Shom classification. The following table describes the meanings and possible values of TYPEVALE attributes:

NFC: conglomerate: sediments in which 50 -100% of the particles are larger than 20 mm.

NFCG: conglomerate and gravel: sediments with a conglomerate matrix and 15 - 50% gravel.

NFGC: gravel and conglomerate: sediments with a gravel matrix and 15 - 50% conglomerate.

NFCV: muddy conglomerate.

NFG: gravel: sediments of which 50 -100% of the particles are between 20 and 2 mm. NFGS: sandy gravel: sediments with a gravel matrix and 15 - 50% sand.

NFSG: gravelly sand: sediments with a sand matrix and 15 - 50% gravel.

NFGV: muddy gravel.

NFS: sand: sediments in which 50 -100% of the particles are between 2 and 0.5 mm.

NFSF: fine sand: sediments in which 50 -100% of the particles are between 0.5 and 0.05 mm.

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

NFSFV: muddy fine sand: fine sand in which between 5 and 20% of the particles are smaller than 0.05 mm.

NFVS: sandy mud: sand in which between 20 and 50% of the particles are smaller than 0.05 mm.

NFV: mud: sediments in which 50 -100% of the particles are smaller than 0.05 mm.

NFRock: rocks: rocks.

NFSi: silts.

NFASi: silty clay.

NFSiA: clay silts.

NFSSi: sands and silts.

NFSFSi: fine sands and silts.

NFM: Marl.

Unique resource identifier

WGS 84 (EPSG:4326)

Unique resource identifier

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	NATURES_FOND_150_BDD_4326_WMSV
OGC Web Feature Service	https://services.data.shom.fr/INSPIRE/wfs?service=WFS&request=GetCapabilities&version=2.0.0	NATURES_FOND_150_BDD_4326_WFS:ndf_150_2016_3857
WWW:LINK-1.0-http--link	https://services.data.shom.fr/INSPIRE/telechargement/prepackageGroup/NATURES_FOND_150_PACK_DIFF_DL/prepackage/NATURES_FOND_150/file/NATURES_FOND_150.7z	Download service
WWW:LINK-1.0-http--link	https://diffusion.shom.fr	Shom marketplace to download data

Hierarchy level

Dataset

Statement

The product was prepared using the sediment data listed, converted and integrated in the Shom Sediment Database (BDSS). The solution provides a summary of data from the surveys completed in various eras using a range of systems: lead plummet with tallow acquired by the hydrography service (1820 - 1950); particle size analysis of sediment samples obtained by dredging, using a container, coring and bore holes (since 1890); MBES (MultiBeam EchoSounder) acoustic imaging and side sonar (since 1985); classification of seabeds by processing the acoustic signal from the single beam echosounder (since 1992); seismic reflection (since 1975); morphological analysis based on bathymetric data (since 1820). The surveys were carried out by Shom, BRGM (French Geological Survey), IFREMER, the universities of Lille 1, Rouen, Caen, Brest, La Rochelle, Bordeaux I and Corte, IntechMer, the Biological Station of Roscoff, the Conseil Général (Departmental Council) of Charente-Maritime, the Departmental Division of Equipment of Charente-Maritime, the Environment Office of Corsica, and the Independent ports of Bordeaux and Marseille. Shom oversaw the compilation of works.

Metadata

File identifier

HOM_GEOL_NATURES_FOND_150.xml XML

Metadata language

Français

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

Jeu de données

Date stamp

2020-01-20T12:32:57

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