• HELCOM Metadata catalogue
  •  
  •  
  •  

Broad scale habitat types (HOLAS 3)

Data represent the presence/absence distribution of Broad Habitat types (BHT) in the Baltic Sea. The data is based on the EUSeaMap 2021 data, downloaded from EMODnet Seabed Habitats thematic portal ( https://emodnet.ec.europa.eu/en/euseamap-2021-emodnet-broad-scale-seabed-habitat-map-europe). The dataset includes an ecosystem component raster layer for all 18 habitat types listed under MSFD BHT in the original EUSeaMap dataset, excluding the habitat “NA” where the classification was not applicable.


The habitats are formed by combining the biological zone (infralittoral/circalittoral / Offshore circalittoral) and substrate information (coarse, mixed, mud, sand, mud or sand, rock and biogenic reef), forming altogether 18 layers.


Original vector data was transformed to 1x1km grid rasters, one data set for each BHT.

Simple

Date (Publication)
2023-02-13
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/f0770ea9-8110-4145-b85f-afee46d5df85
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Habitats and biotopes

GEMET

  • habitat

  • Marine Strategy Framework Directive

  • marine geology

Keywords
  • MADS

  • HOLAS3

  • ecosystem component

  • broad scale habitat

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source is cited (following creative commons license CC-BY). The source should be cited as: “HELCOM HOLAS 3 Dataset (2023).

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Grid
Metadata language
English
Topic category
  • Environment
  • Biota
N
S
E
W
thumbnail


Begin date
2016-01-01 Unknown
End date
2021-12-31 Now
Unique resource identifier
EPSG:3035
Distribution format
  • ESRI Shapefile ( 1.0 )

OnLine resource
Original downloadable resource ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral mud or Infralittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral mud or Infralittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
Download Infralittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Infralittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral mud or Circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral mud or Circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
Download Circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral coarse sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral mixed sediment ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral mud ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral mud or Offshore circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral mud or Offshore circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral rock and biogenic reef ( WWW:LINK-1.0-http--link )
OnLine resource
Download Offshore circalittoral sand ( WWW:LINK-1.0-http--link )
OnLine resource
View Offshore circalittoral sand ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

Data source: EUSeaMap 2021


Data processing: Original vector-based data on habitats (MSFD BHT) was first transformed 100x100m raster. The final value for the 1x1km grid was assigned to the habitat that had the biggest area within each grid cell. As contrary to HOLAS2, no aggregation to the habitats was made and the division of deep and shallow circalittoral habitats was kept. Thus the number of habitats used in HOLAS3 increased to 18.


Data quality: Broad habitat types describe the habitat distribution on a regional/large scale. They do not describe local scale variation in habitat distribution. Scale in the original data varies from 1:1 500 to 1:1 000 000.


All data is coming from one source, but given the uncertainties in the original data and data gaps in the southern Baltic Sea, the overall confidence can be considered to be moderate.


A separate confidence map of the original data, compiled by the EMODnet Seabed Habitats project, can be downloaded from the EMODnet Seabed Habitats thematic portal ( https://emodnet.ec.europa.eu/en/euseamap-2021-emodnet-broad-scale-seabed-habitat-map-europe) and viewed in the EUSeaMap 2021 technical report ( https://archimer.ifremer.fr/doc/00723/83528/88577.pdf).

File identifier
f0770ea9-8110-4145-b85f-afee46d5df85 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2023-02-22T16:28:50
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET
Marine Strategy Framework Directive habitat marine geology
GEMET - INSPIRE themes, version 1.0
Habitats and biotopes

Provided by

logo

Share on social sites

Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •