• Image Processing for Ice Floe Analyses in Broken-ice Model Testing 

      Zhang, Qin; Skjetne, Roger; Metrikin, Ivan; Løset, Sveinung (Journal article; Peer reviewed, 2015)
      The ice floe shape and size distribution are important ice parameters in ice-structure analyses. Before performing an analysis at full scale, the dynamic positioning (DP) experiments in model ice at the Hamburg Ship Model ...
    • Image Techniques for Identifying Sea-Ice Parameters 

      Zhang, Qin; Skjetne, Roger (Journal article; Peer reviewed, 2014)
      The estimation of ice forces are critical to Dynamic Positioning (DP) operations in Arctic waters. Ice conditions are important for the analysis of ice-structure interaction in an ice field. To monitor sea-ice conditions, ...
    • Online reconstruction of drifting underwater ice topography: The 2D case 

      Jørgensen, Ulrik; Skjetne, Roger (Journal article; Peer reviewed, 2015)
      An online estimation design for a drifting two dimensional ice topography is presented. Under the assumption that the topography can be accurately represented by a truncated Fourier series, and given a moving window of ...
    • The Arctic DP Research Project: Effective Stationkeeping in Ice 

      Skjetne, Roger; Imsland, Lars Struen; Løset, Sveinung (Journal article; Peer reviewed, 2014)
      Stress on the environment from a potentially growing energy use is set to rise. Without doubt the energy resources in Arctic regions will be developed. An important goal will be to exploit the resources offered by for ...
    • Using Autonomous Underwater Vehicles as Sensor Platforms for Ice-Monitoring 

      Norgren, Petter; Skjetne, Roger (Journal article; Peer reviewed, 2014)
      Due to the receding sea-ice extent in the Arctic, and the potentially large undiscovered petroleum resources present north of the Arctic circle, offshore activities in ice-infested waters are increasing. Due to the presence ...