HELCOM Metadata catalogue
Oxygen debt 2018 (HOLAS 2)
This core indicator evaluates the eutrophication status of the Baltic Sea area based on oxygen debt. The oxygen debt value is calculated based on data reported to HELCOM COMBINE database using script developed in TARGREV project and further developed within EUTRO OPER project. The R-script for calculating oxygen is accessible from https://github.com/ices-tools-prod/HEAT/tree/master/scripts/OxygenDebt
This dataset displays the result of the indicator in HELCOM Assessment Scale 4 (Division of the Baltic Sea into 17 open sea sub-basins and division of coastal areas to WFD water types or water bodies), but applicable only to certain open sea assessment units. Coastal areas were excluded from the shapefile.
Attribute information:
"HELCOM_ID" = Code of the HELCOM scale 4 assessment unit
"Country" = country/ opensea
"level_2" = name of subbasin
"level_4" = Name of the HELCOM scale 4 assessment unit
"Area (km2)" = Area of the HELCOM scale 2 assessment unit
“Name_1” = "Name" = Name of the open sea area
“Season” = Season of the indicator
“Period” = Assessment unit period (20112016 = 2011 – 2016)
"Indicator value (ES)" = Indicator value calculated for the assessment unit
"Standard deviation (STD)" = Standard deviation of data used for calculating ES
"Number of samples " = Number of samples in assessment unit
"Thershold value (ET)" = Commonly agreed thershold value
"Ratio between ES and ET (ER)" = Ratio between ES and ET (in case of indicator with positive response to eutrophication)
"ES_SCORE” = Confidence based on the data used for calculating ES
"ET_SCORE” = Confidence of target-setting procedure
"I_SCORE” = Confidence (%) = average of ES-Score and ET-Score
"Indicator Weight" = Indicator Weight in integrated eutrophication assessment
“Status” = Status of the indicator (“Achieve”, “Fail”, “Not assessed” or "Not applicable")
“Confidence” = Confidence of result based on I-SCORE (“High”, “Moderate” or “Low”)
"AULEVEL" = Assessment unit level used for the indicator
Simple
- Date (Publication)
- 2018-06-28
- Unique resource identifier
- https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/9d9904ba-45f9-4392-9655-20e12a247fad
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GEMET - INSPIRE themes, version 1.0
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Oceanographic geographical features
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- Keywords
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MADS
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HOLAS2 2018 Core indicator
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Core indicator
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- Use constraints
- Other restrictions
- Other constraints
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Use constraints: Data can be used freely given that the source (HELCOM) is cited.
- Access constraints
- Other restrictions
- Other constraints
- Access constraints: No limitations on public access.
- Spatial representation type
- Vector
- Metadata language
- English
- Topic category
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- Environment
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- Begin date
- 2011-01-01
- End date
- 2016-12-31
- Unique resource identifier
- EPSG:3035
- Distribution format
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ESRI Shapefile
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1.0
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ESRI Shapefile
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1.0
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- 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
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The dataset was created in June 2018
Data source: The average for 2011-2016 was estimated using monitoring data provided by the HELCOM
Contracting Parties, and kept in the HELCOM COMBINE database, hosted by ICES (www.ices.dk). Nominated
members of HELCOM STATE & CONSERVATION group were given the opportunity to review the data, and to
supply any missing monitoring observations, in order to achieve a complete dataset.
Description of data: The data includes in-situ temperature, salinity and oxygen profiles, determined as
explained in the HELCOM COMBINE manual. Dissolved oxygen measurements made at the depth below the
halocline were used in the assessment.
Geographical coverage: The observations are distributed in the sub-basins according to the HELCOM
COMBINE programme, added occasionally with data from research cruises.
Temporal coverage: The raw data includes observations throughout the year, during the assessment period
2011-2016.
Data aggregation: The 2011-2016 averages for each sub-basin were produced as inter-annual estimates,
determined using a GLM-GAM procedure to exclude spatio-temporal bias. The oxygen debt calculation
algorithm R-script can be accessed at https://github.com/ices-tools-prod/HEAT#oxygen-debt-indicatorcalculation-scripts
Additional information:
http://www.helcom.fi/baltic-sea-trends/indicators/oxygen-debt/
- File identifier
- 9d9904ba-45f9-4392-9655-20e12a247fad XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-03-19T03:07:47
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