Dredging sites (HOLAS 3)

The dataset contains dredging sites in the marine environment that were made available by HELCOM Contracting Parties in response to a data call. Data were reported by Estonia, Finland, Germany, Poland and Sweden for the period 2016-2020. The data for 2021 was reported within HELCOM specific group. Attribute specifications and units Type: Type of dredging (maintenance or capital) classified under the precautionary approach principle Start_day - Start_month - Start_year: Date in which the dredging activity started End_day - End_month - End_year: End date of the dredging activity Amount_ton: Amount of dredged material (tonnes) per event Depth: Depth of area (m) Area: Area of the actual dredging site in m2 per event Sediment: Type of sediment dredged Method: The method utilized in the dredging Notes: Notes regarding the data amount_m3: Amount of dredged material (m3) per event source: Source of the data original_t: Original type declared by the Contracting Parties