Observations of ice thickness, snow heights and water depths in Friesland

In-situ observations were collected by the Rayonhoofden of the ‘Vereniging De Friesche Elfsteden’. The ice thickness measurements were made in the city of Veenwouden (53.2351 °N, 5.9867 °E) in Friesland during 1986 and 1987, and span a few weeks with one measurement each day. These observations were published in an article of De Bruin and Wessels (1988). In this KDP dataset also observations of Rayonhoofden during the winters of 2010, 2011 and 2012 are available. They consist of a few weeks of ice observations spread out over the province of Friesland. Apart from ice thicknesses, also snow heights and water depths were added here. These data were ingested in a dedicated website of KNMI, operated by Rudolf van Westrhenen and Martin Stam. It should be noted that the observations are not validated.