Alternate title

GB001544

Date (Publication)

2018-04-28

Date (Revision)

2015-08-05

Date (Creation)

2015-08-05

Citation identifier

EMODnetSeabedHabitats / GB001544

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Defra		open@defra.gsi.gov.uk	Owner
JNCC		habitatmapping@jncc.gov.uk	Custodian

GEMET - INSPIRE themes, version 1.0

• Habitats and biotopes

http://inspire.ec.europa.eu/codelist/ReferenceHabitatTypeSchemeValue

• Eunis

Use limitation

┬® Defra. Data may be re-used under the terms of the Open Government Licence v3.

Use limitation

geossAttribution

Access constraints

Other restrictions

Other constraints

no limitation

Spatial representation type

Vector

Denominator

20000

Language

English

Topic category

• Biota
• Oceans

Begin date

2014-01-19

End date

2014-01-21

Supplemental Information

Mitchell, P., McIlwaine, P. (2015) Inner Bank rMCZ Post-survey Site Report. Defra contract reference: MB0120, report number: 48, version 2. Accessed via http://randd.defra.gov.uk/Document.aspx?Document=14002_InnerBankrMCZSummarySiteReport_v2.pdf [2017-12-11]

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 7.9

Topology level

Geometry only

Distribution format

Name	Version
ESRI Shapefile	1.0

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://randd.defra.gov.uk/Document.aspx?Document=14043_SlievenaGriddlerMCZ_SummarySiteReport_V3.pdf	Inner Bank MCZ Post-survey Site Report
WWW:LINK-1.0-http--link	https://www.emodnet-seabedhabitats.eu/access-data/launch-map-viewer/?zoom=18&center=0.00001,0.00046&layerIds=501&baseLayerId=1&activeFilters=NobwRANghgngpgJwJIBMwC4CsAGAjAGjADMBLCAF0VQwBYB2Q0ixAGQHs2BrAVwAdUAzhmABdRmUoIAKnAAe5DGADiAIWx5MNGmAC+IoA	EMODnet Seabed Habitats Map Viewer
OGC:WMS	https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_view_maplibrary/wms?	gb001544
OGC:WFS	https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_open_maplibrary/wfs?	gb001544
WWW:LINK-1.0-http--link	https://files.emodnet-seabedhabitats.eu/data/EMODnetSBHsurvey_GB001544.zip	EMODnet Seabed Habitats download

Hierarchy level

Dataset

Statement

The new broadscales habitat map (BSH) for this site was produced by analysing and interpreting the available acoustic and ground truth data collected by the dedicated survey of this site in 2014. The process is a combination of two approaches, statistical modelling and object-based image analysis (OBIA). OBIA is a two-step approach consisting of segmentation and classification, implemented in the software package eCognition v9.0.3. The backscatter and bathymetry images are segmented into objects (sections of the image with homogeneous backscatter and bathymetry characteristics). For each of these objects, mean values of the primary acoustic data layers and their derivatives were calculated and used to inform further analysis. A combination of manual classification rules and Random Forest (RF) models were used to interpret ground-truth data, and to predict substrate type across the rMCZ. Where available, habitat boundaries have been defined based on a combination of bathymetry and backscatter and associated derivatives, with these predictor layers incorportated into the RF model. In the rest of the site, where backscatter data was not available, bathymetry and associated derivatives have been used in isolation to produce a BSH map. For the portion of the site where backscatter is not available the associated confidence of habitat boundaries is lower.

Metadata

File identifier

68b02885-89dc-437e-9896-ac89b87449c7 XML

Metadata language

English

Character set

MD_CharacterSetCode_utf8

Hierarchy level

Dataset

Date stamp

2020-01-15T12:01:18

Metadata standard name

ISO19115

Metadata standard version

2003/Cor.1:2006

Metadata author

Organisation name	Individual name	Electronic mail address	Role
JNCC		HabitatMapping@jncc.gov.uk	Point of contact