20210726 14474300 1.0 TRUE Operational oil spills from ships 2018 data This dataset contains points of information describing the location and size of illegal oil discharges observed during aerial surveillance flights by HELCOM Contracting Parties during 1998-2015. Further information about illegal discharges of oil in the Baltic Sea area and HELCOM aerial surveillance activities can be found at http://www.helcom.fi/baltic-sea-trends/maritime/illegal-spills/The dataset contains the following information:CountryYearSpill_ID = Spill IDFlightType = The type of flight the detection was made during: National = "N", CEPCO = "C", Super CEPCO = "S"Date = The date of the detection (dd.mm.yyyy)Time_UTC = The time of the detection (hh:mm)Wind_speed = The wind speed at the time of the detection (m/s)Wind_direc = The wind direction at the time of the detection (degrees)Latitude = The latitude of the detection (decimal degrees, WGS84)Longitude = The longitude of the detection (decimal degrees, WGS84)Length__km = The length of the detection (km)Width__km = The width of the detection (km)Area__km2_ = The area of the detection (km2)Spill_cat = The category of the detection: OILEstimVol_m = Estimated volume of the detection (m3)Polluter = Polluter (rig, ship, other, unknown)Category = Category of the detection: 100m3 = "5"Casefile = The name of the casefile the detection refers toRemarks = Any additional information HELCOM