As the developments of oil and gas fields in the Norwegian part of the Barents Sea grows Northwards, there is an increasing risk for interactions between offshore structures and sea ice or icebergs As a part of the Skrugard development, specific studies have been carried out to estimate frequency of occurrence of sea ice and icebergs at the Skrugard location. The frequency of sea ice was found by extrapolation of ice charts while the frequency of iceberg encounters was found by drift model simulations. It was found that sea ice with a concentration of 1/10 or more will occur statistically with a recurrence period of once per 2400 years. The encounter frequency of icebergs within a 100 m diameter circle centered at Skrugard was found to be 2.6 ? 10~(-5)encounters per year.
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