PhD defense on First-year sea ice

PhD defense on First-year sea ice

Top image: First-year sea ice in Isfjorden. Photo: Øystein Varpe/UNIS.

Civil engineer Svetlana Shafrova will defend her PhD thesis ”First-year sea ice features: Investigation of ice field strength heterogeneity and modeling of ice rubble behaviour” at UNIS on Friday, 12 October 2007.

5 October 2007
Press relase from the University Centre in Svalbard (UNIS) and Norwegian University of Science and Technology (NTNU).

Svetlana Shafrova is a PhD student at NTNU in Trondheim and UNIS.

The background for her doctoral thesis is that there are no common agreements regarding the magnitude of ice loads on structures due to lack of knowledge about properties and deformation behaviour of the first-year sea ice features.

Measurements and modeling
Shafrova’s research is based on field measurements of level ice and ice ridges in the Svalbard area. It consists of two parts: Small-scale measurements of the ice strength and ice properties to better understand the local scale structure and physical-mechanical properties of the ice fields, which can be used to predict ice loads on offshore structures and ships.

The other part is modeling of ice rubble behaviour using the collected data about ice ridge morphology, freeze-bonds and rubble strength.

Svetlana Shafrova

Svetlana Shafrova

New data
Svetlana Shafrova’s thesis has brought new data on ice properties of the first-year sea ice features, such as level ice, ice ridges and rubble fields. These results can contribute to better estimation of ice load on offshore structures.

The defense lecture will take place at the auditorium “Lassegrotta” on Friday, 12 October at 13:15. A trial lecture will be held at the same place at 10:15.

Both lectures are open to the public.

 

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