• HELCOM Metadata catalogue
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Submarine structures made by leaking gas (1180)

Submarine structures made by leaking gases (according to Habitats Directive Annex I) are also known as “bubbling reefs”. These formations support a zonation of diverse benthic communities consisting of algae and/or invertebrate specialists of hard marine substrates different to that of the surrounding habitat. The distribution map is based on data submission by HELCOM contracting parties. Only Sweden and Denmark reported occurrences of submarine structures made by leaking gases.

Simple

Date (Creation)
2016-04-06
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/3cef63ee-9a44-481f-8869-ea9b977df747
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Habitats and biotopes

GEMET

  • marine geology

Keywords
  • MADS

  • HOLAS2

  • ecosystem component

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source is cited as "HELCOM HOLAS II Dataset: Natura 2000 habitats: Submarine structures made by leaking gas (1180) (2017)".

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Grid
Metadata language
English
Topic category
  • Environment
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Begin date
2011-01-01
End date
2016-12-31
Unique resource identifier
EPSG:3035
Distribution format
  • TIFF ( )

OnLine resource
Download dataset ( WWW:LINK-1.0-http--link )
OnLine resource
Open in Map Viewer ( WWW:LINK-1.0-http--link )
Hierarchy level
Dataset

Conformance result

Date (Publication)
2010-12-08
Statement

Data source:

Denmark: Polygon and point data on the distribution of submarine structures made by leaking gases. Source: Danish Nature Agency.

Estonia: No reported submarine structures made by leaking gases.

Finland: No reported submarine structures made by leaking gases.

Germany: No reported submarine structures made by leaking gases.

Latvia: No reported submarine structures made by leaking gases.

Lithuania: No reported submarine structures made by leaking gases.

Poland: No reported submarine structures made by leaking gases.

Russia: Habitats Directive not implemented.

Sweden: Polygon data of potential pockmarks based on bathymetric data. Source: Swedish Agency for Marine and Water Management (HaV)


Data quality:

Data quality and habitat definitions vary between countries. Data is often based on modelling and ground-truthing has not always taken place.

The dataset was approved by all HELCOM Contracting Parties in the HOLAS II Ecosystem component data review process during first quarter of 2017 after corrections from Denmark.


Attribute information: Raster value representing presence (1) or absence (0) of submarine structures made by leaking gas.

File identifier
3cef63ee-9a44-481f-8869-ea9b977df747 XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-09-09T12:03:18
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Habitats and biotopes

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Associated resources

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