• HELCOM Metadata catalogue
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Availability of deep water habitat, based on occurrence of H2S

'Availability of deep water habitat, based on occurrence of H2S' layer describes the suitability of the bottom areas for the Baltic Sea biota, with regard to oxygen conditions of the near bottom waters.


The data used to produce the layer was received from Leibniz-Institut für Ostseeforschung Warnemünde (IOW):

- areas (polygons) with hydrogen sulfide (H2S) based on point measurements and modelling. Five time periods / year, for years 2011-2016 (altogether 30 layers).


The polygons were converted to raster layers in a way, that for each time period (6 years, 5 time periods each year), areas with H2S got a value 0, other areas got the value 1. All layers were summed, (representing 6 years, 5 time periods each year, maximum value 30) and data was normalised. For more detailed information on the data used, please see Feistel et al. 2016.

Simple

Date (Creation)
2018-01-15
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/bd227931-7f33-419a-a84b-ae6c543a1cbb
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Bio-geographical regions

GEMET

  • oxygen deficiency

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 Data set: Availability of deep water habitat, based on occurrence of H2S (2018)"

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

Polygon data on sulfidic areas kindly provided by Leibniz-Institut für Ostseeforschung Warnemünde (IOW). Separate maps can be viewed at http://www.io-warnemuende.de/msr-2016-0100.html.

Reference:

Feistel, S., Feistel, R., Nehring, D., Matthhäus, W., Nausch, G., Nauman n, M., 2016: Hypoxic and anoxic regions in the Baltic Sea, 1969-2015. Meereswiss. Ber, Warnemünde, 100. doi:10.12754/msr-2016-0100


in 2018 Availability of deep water habitat, based on occurrence of H2S layer has been updated with IOW data from 2016.


Data quality: The data is based on monitoring data and modelling. For further information, see reference.


Attribute information: Raster value representing an index value for oxygen. 0 value represents the lowest value for BS bottom communities, 1 the highest value.

File identifier
bd227931-7f33-419a-a84b-ae6c543a1cbb XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-09-09T11:59:00
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
Bio-geographical regions

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Associated resources

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