25. July 2008
Norway recovering first parts of the permafrost snapshot in Svalbard
Contact person for additional information: Hanne H. Christiansen
Text and photos by Hanne H. Christiansen and Ole Humlum
the last week we have recovered around 500.000 hourly temperature and movement
values from different permafrost and periglacial landforms in the Kapp Linné
area at the west coast of
data show that the active layer here in the warmest part of
Ground temperatures from a shallow 2.55 m deep borehole on the lower part of the rockglacier at Griegaksla west from Jyly 2007 to July 2008.
Miniature one-dimensional accelerometers, socalled shock loggers, have been recording movement on avalanche fans. And the 2007-2008 winter certainly did see movement on these fans. This indicates significant avalanche activity, which we have also recorded in sediment traps on the same fans, with up to 8 kg/m2 of new debris being deposited.
Left: Shock logger (5x5cm yellow box) sitting on large boulder in the central upper part of the avalanche fan. Right: Large boulder surface used as sediment trap with 2 new avalanche rock fragments on top, deposited during the 2007-2008 winter. The largest dimension of the boulder used as trap is c. 130 cm.
US REU Svalbard group ready for fieldwork at Isfjord Radio 22 July 2008.