Modelled seabed sediment average grain size in French Mediterranean waters
Sediment average grain size in French Mediterranean waters was generated from sediment categories. This rough granulometry estimate may be used for habitat models at meso- and large scale.
Simple
- Title
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Modelled seabed sediment average grain size in French Mediterranean waters
- Date (Creation)
- 2020-04-01
- Abstract
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Sediment average grain size in French Mediterranean waters was generated from sediment categories. This rough granulometry estimate may be used for habitat models at meso- and large scale.
- Credit
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Ifremer
- Point of contact
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Organisation name Individual name Electronic mail address Role Ifremer
Sandrine Vaz
Author AMOP
Margaux Llapasset
Author Ifremer
sextant
Publisher
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Thèmes Sextant
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/Physical Environment/Geology/Seabed Nature
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GEMET - INSPIRE themes, version 1.0
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Habitats and biotopes
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DCSMM : Descripteurs
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D1: Deep-sea benthic habitats
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D6: Sea-floor Integrity
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Sous-regions marines
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Western Mediterranean
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Thématiques - SIMM
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/Environmental Status/Geology
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/Environmental Status/Habitats
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Research
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- Use limitation
- CC-BY-NC-SA (Creative Commons - Attribution, Pas d’utilisation commerciale, Partage dans les mêmes conditions)
- Access constraints
- Other restrictions
- Use constraints
- Copyright
- Spatial representation type
- Grid
- Language
- English
- Character set
- UTF8
- Topic category
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- Oceans
- Environment
- Reference system identifier
- EPSG / WGS 84 (EPSG:4326) / 8.6
- Number of dimensions
- 2
- Dimension name
- Vertical
- Dimension name
- Time
- Cell geometry
- Area
- Transformation parameter availability
- Distribution format
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Name Version
- OnLine resource
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Protocol Linkage Name WWW:LINK
http://sextant.ifremer.fr/record/52b3fb36-6101-4b10-a0ce-4ba82403f0d6/ Base de Données Sédimentologiques du SHOM - BDSS
WWW:LINK
https://sextant.ifremer.fr/Donnees/Catalogue#/metadata/e4f891f7-e495-4a9b-b557-5c2c6c653a2d Sédimentologie - Méditerranée occidentale
WWW:LINK
https://hal-normandie-univ.archives-ouvertes.fr/hal-02084698/document iso 16665
OGC:WMS
https://sextant.ifremer.fr/services/wms/galion Sediment_avg_grain_size_Med_fr
COPYFILE
Sediment_avg_grain_size_Med_fr
- Hierarchy level
- Dataset
Conformance result
- Title
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RÈGLEMENT (UE) N o 1089/2010 DE LA COMMISSION du 23 novembre 2010 portant modalités d'application de la directive 2007/2/CE du Parlement européen et du Conseil en ce qui concerne l'interopérabilité des séries et des services de données géographiques
- Date (Publication)
- 2010-12-08
- Explanation
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See the referenced specification
- Description
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Sediment average grain size in French Mediterranean waters was generated from sediment categories.
SHOM sediment map in the French Mediterranean waters was used to obtain sediment distribution, grain size range (mm) per sediment group and % fraction of each main sediment group (Rock, pebble, pebble and gravel, gravel,sand, sand and fine sand, fine sand, mud, silt and clay). Upper and lower boundaries for rock, pebble and clay size were derived from iso 16665 description.
- Description
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Römkens et al. (1997) equation enabling the estimation of average grain size from sediment typologie and fraction was applied:
X = exp[ 0.01 * SUM( fi * ln( mi ) ) ]
where X :average grain size (mm) ; mi : estimated average grain size of ith sediment category (mm) and ; fi : corresponding fraction of mi (%).
Römkens, M. J. M., Young, R. A., Poesen, J. W. A., McCool, D. K., El-Swaify, S. A., & Bradford, J. M., 1997. Soil erodibility factor (K). Renard KG et al., Predicting soil erosion by water: a guide to conservation planning with the Revised Universal Soil Loss Equation (RUSLE). USDA Agriculture Handbook, (703), 65-99.
- Description
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Sediment categories were recoded with the computed average grain size and the layer was transformed in geotiff.
Metadata
- File identifier
- 5b62e0c9-05ab-4b86-bd04-282fec733f87
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2024-05-21T08:49:57.928Z
- Metadata standard name
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ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
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1.0