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Abstract:
The maximum observed fast-ice thickness per season at Hopen (part of the Svalbard) during the period 1965/66 - 2007/08. The data file has two columns: a) the year the data connects to, and b) the thickness numbers in meters. If an observation is missing, data is set to 999.
Most ice thickness data were collected from drill holes in shore-fast sea ice within 150 m of shore. The accuracy for an ice thickness reading is 0.01 m (reading interval). Drill sites are not at the identical spot for each measurement throughout a season, resulting in apparent thickness changes due to local variability in ice thickness.
See also Søreide, O., 1994. Hopen. Ishavsøy og meteorologisk stasjon, 158 pp., Friske Tankar A. S., Øystese, Norway.
Quality
Since 1946, a Norwegian permanently manned meteorological station has been in operation on Hopen’s east coast (76° 30´N, 25° 01´E) where standard meteorological data are collected (Søreide, 1994). Regular ice thickness measurements were initiated in the 1960s by Torgny Vinje, Norwegian Polar Institute, resulting in 40 years of ice thickness measurements since winter 1965/1966 (Gerland et al., 2008). The fieldwork is conducted by the Hopen wintering teams of the Meteorological Institute of Norway (met.no), on request by and in collaboration with the Norwegian Polar Institute. The fast ice monitoring was recently updated and follows now a procedure similar to the Norwegian Polar Institute’s fast ice monitoring at Kongsfjorden at the western coast of Spitsbergen, Svalbard (Gerland and Renner, 2007).