Watercourse modification (HOLAS 3)

The dataset contains the location of water course modifications as reported by the Contracting Parties for the period 2016-2021. The data was made available by HELCOM Contracting Parties in response to a data call. The data was reported by Denmark, Estonia, Finland, and Sweden. The use of HOLAS 2 data was requested by Estonia and Sweden. The activity was declared as not relevant in Germany and Latvia. Attribute specification and units (points and polygons): Year: Year of construction, especially if built between 2016-2021 Type: Structure type as listed on the data call (canalisation, culverting/trenching, causeway, damn/weir, other) Notes: Notes regarding the data Status: The status of the structure, if available Dimension: The dimension of the outlet, if available Original ID: Original identification used by the Contracting Party Attribute specification and units (lines): ID NAMESPACE STATUS KATEGORI TYPE JOURNAL_NR NOTE REGISTERTI REGISTER_1 VIRKNINGFR VIRKNINGTI EJER FAERDIGMEL REGISTRERI VIRKNINGSA