Dissolved inorganic nitrogen 2018 (HOLAS 2)
This indicator evaluates the eutrophication status of the Baltic Sea area based on dissolved inorganic nitrogen (DIN) concentration. The measured average DIN is based on in-situ measurements from oceanographic monitoring data for winter period (December-February) 2011-2016 for NO2 + NO3 + NH4 concentration (umol/l), surface water (0-10 m). More detailed description on methodology can be found at http://www.helcom.fi/baltic-sea-trends/indicators/Dissolved-inorganic-nitrogen-(DIN) and http://www.helcom.fi/Documents/Eutrophication%20assessment%20manual.pdf
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). The open sea areas have been assessed based on HELCOM Monitoring data and results for coastal areas are based on national WFD results.
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
"Indicator" = Name of indicator
“Season” = Season of the indicator (Winter = December-February)
“Period” = Assessment unit period start and end year (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 per assessment unit
"Thershold value (ET)" = Commonly agreed threshold 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”, “Low” or "Not assessed")
"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/1c5cc76d-0631-4c24-80f8-ebec20dcea8f
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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
- 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 include the sum of in-situ nitrate and nitrite samples, determined using
colorimetric methods, as explained in the HELCOM COMBINE manual. In the assessment, only surface water
measurements at depths of 0-10 m are reported.
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 an inter-annual winter
(December-February) estimates.
Additional information:
http://www.helcom.fi/baltic-sea-trends/indicators/Dissolved-inorganic-nitrogen-(DIN)
- File identifier
- 1c5cc76d-0631-4c24-80f8-ebec20dcea8f XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-03-19T03:06:21