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Aleksey Shestov in a field campaign for
WP1 at Svea.
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• ANNUAL REPORT 2015
Focus Activities 2015
Sea State and Ice Conditions in the North-West Barents Sea, Barents Sea Opening,
Greenland Sea and in the Arctic Ocean to the North of Spitsbergen
• Deployment of three Iridium ice trackers (Oceanetic Measurements) with thermistor strings on the
drift ice ridges to the north of Spitsbergen in April-May 2015
• Analysis of field data on the characteristics of sea currents in under-ice boundary layers collected
during four events of wave propagation below the drift ice in the Barents Sea since 2006
• Calculation of eddy viscosity and estimates of the damping of surface waves propagating below the
drift ice in the Barents Sea
• Modelling of wave propagation below the drift ice in the North-West Barents Sea
Sea Ice Actions in the Coastal Zone
• Ice loads on the shoreline and a fixed quay were measured with pressure load cells (Geokon) in
2013-2015 and analyzed according to tide measurements
• Monitoring of the deformation of coastal ice and structural elements of a fixed quay were performed
with Laser scanner (Riegl-VZ 1000) in 2013-2015
• The influence of shoreline icing on the semidiurnal variations of the ground water level in the shoreline
zone was investigated based on air and soil temperature data and pore pressure collected around the
pipeline landfall in Longyearbyen in 2012-2015
• Laboratory modelling of ice loads on a cofferdam due to thermal expansion of ice was performed in the
ice tank at the UNIS cold laboratory. An original system of Fiber Bragg Grating sensors, designed for
laboratory measurements of strain and temperature, was used to investigate the thermal expansion of
ice induced by the migration of liquid brine through the ice in the field of a temperature gradient
• An original system of Fiber Bragg Grating sensors designed for laboratory measurements of strain and
temperature was used to investigate thermo-elastic waves on the surface of saline ice
• A thermo-mechanical model of saline ice was constructed and validated using the experimental data
on thermo-elastic waves