Quantitative sediment composition predictions for the north-west European continental shelf

Published by:
Marine Environmental Data & Information Network
Last updated:
10 September 2024
Topic:
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Licence:
Other Licence
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Summary

Spatial predictions of the fractions of mud, sand and gravel as continuous response variables for the north-west European continental shelf. Mud, sand and gravel fractions range from 0-1 (i.e. 0-100%). These fractions were generated from two additive log-ratios (ALR), ALRs and ALRm which are independent, unconstrained response variables. These raw predictions as rasters are also included presented in the attached dataset. Predicted fractions have been combined to predict the likely sediment classification based on the EUNIS level 3 sediment classification for broadscale habitats, Folk 5, Folk 7, Folk 11 and Folk 15 classification schemes. These are available as raster tif files with an ArcGIS layer file indicating the appropriate class for each raster value.

For all predictions an accompanying map of the spatial distribution of error/accuracy is also included as a separate raster. For the three components of the sediment fraction a smoothed Root-Mean-Squared-Error layer is available. For the classification maps a smoothed local accuracy map is available.

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Data links

Link to the data Format File added Data preview
Cefas Data Portal N/A 10 September 2024 Not available

Additional information

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Added to data.gov.uk
2024-07-12
Access contraints
Not specified
Harvest GUID
CEFASb71ac939-cab1-46e1-a6ed-1615d416795f
Extent
Latitude: 63.00° to 48.00°
Longitude: -13.00° to 11.00°
Spatial reference system
Dataset reference date
2019-04-11 (publication)
2024-07-12 (revision)
2019-04-09 (creation)
Frequency of update
notPlanned
Responsible party
Centre for Environment, Fisheries and Aquaculture Science, Lowestoft Laboratory (CEFAS) (originator, custodian, distributor); European Commission (owner)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

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