• HELCOM Metadata catalogue
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Dredging sites lines 36/2

This dataset contains dredging sites reported by HELCOM Contracting Parties, according to the HELCOM Recommendation 36/2 ( https://helcom.fi/action-areas/industrial-municipal-releases/dredging/). Reporting of dredging sites is not mandatory according to the, but several Contracting Parties report information about dredging activities. The dredging sites are grouped by spatial data type to point, line and polygon datasets. The dredging site includes a link to corresponding site where the material has been deposited.


Attribute information (heading for downloadable shapefile):

Dredging ID (Dredging_I): Dredging site id, where material originates from

Deposit site (Helcom site ID) (Helcom_sit): Unique id for deposit site

Deposit site link (Deposit_si): Link to deposit site, where material from this dredging site is deposited

Site name (Site_name): Name of the dredging site

Type of area dredged (Type_of_ar): Type of area that was dredged (e.g. harbour or sea)

Dredging activity (Dredging_a): Maintenance or capital dredging

Material dredged (Material_d): The type of material dredged (e.g. sand, silt)

Year (Year): Year of activity

Country (Country): Contracting Party of HELCOM

Sub-basin (Sub_basin): HELCOM sub-basin (assessment unit level 2) where activity has taken place

Quality flag (Quality_fl): Quality flag of data

- Quality assured: Data is quality assured either in the annual verification or in a separate quality assurance process by EN DREDS

- No quality assurance: Data is not quality assured due to the reason that process has not been carried out

- No Quality assurance possible: Data quality assurance process has been made, but it was not possible to find the reference data to verify the parameters

Simple

Date (Publication)
2024-04-09
Unique resource identifier
https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/33a8ad79-c33e-48d6-a3f4-74c71544542a
pointOfContact
  HELCOM Secretariat

GEMET - INSPIRE themes, version 1.0

  • Sea regions

GEMET

  • dredging

Keywords
  • MADS

Use constraints
Other restrictions
Other constraints

Use constraints: Data can be used freely given that the source is cited

Access constraints
Other restrictions
Other constraints
Access constraints: No limitations on public access.
Spatial representation type
Vector
Metadata language
English
Topic category
  • Environment
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S
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W
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Begin date
2006-01-01
End date
2022-12-31
Unique resource identifier
EPSG:3857
Distribution format
  • ESRI Shapefile ( 1.0 )

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

The dredging sites are grouped by spatial data type to point, line and polygon datasets. The data format is defined in the HELCOM Guidelines for management of dredged material ( https://helcom.fi/action-areas/industrial-municipal-releases/dredging/)


Data quality aspects


Two separate quality assurance processes of old reported data 2006-2016 have been carried out during 2018. In addition annually reported data is verified by Contracting Party before making the data publicly available. Attribute "quality flag" in the data provides information on the quality status of individual depositing/dredging activity.


Denmark


Denmark can only quality assure data from 2013 onward. Denmark cannot review the raw data for 2009 and 2010. The reason for this, lies in the history of the monitoring of dredged material in Danish waters: Before 2013, the responsible authority was decentralised in Denmark, meaning that the different regions had very different formats for reporting of dredged material. In 2013, all dredging activities were centralised to the then national agency of nature. Thus, Danish data older than 2013 has been removed from HELCOM database.


Sweden


Information on the calculation of contaminants prior to 2013 is scattered, and not possible to trace fully. Data from 2013 onwards is quality assured.

File identifier
33a8ad79-c33e-48d6-a3f4-74c71544542a XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2024-04-09T11:02:36
pointOfContact
  HELCOM Secretariat
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET
dredging
GEMET - INSPIRE themes, version 1.0
Sea regions

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Associated resources

Not available


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