vn [m] Minimum visibility; 0: <100 m, 1:100-200 m, 2:200-300 m,..., 49:4900-5000 m, 50:5-6 km, 56:6-7 km, 57:7-8 km,..., 79:29-30 km, 80:30-35 km, 81:35-40 km,..., 89: >70 km) (the upper bound of the interval), Vlieland ( 53.23N, 4.92E, 1.7m, metadata), from KNMI climatological service, These data have not been corrected for changes in observing practices and the surroundings, last updated 2024-04-19, (eps, pdf, metadata, raw data, netcdf)

Annual cycles, computed with all data available (Jan-Dec: eps, pdf, raw data,. Jul-Jun: eps, pdf, raw data).

Anomalies with respect to the above annual cycle (eps, pdf, raw data, netcdf, analyse this time series)