LONG-TERM GOALS

The reduction of the sea ice coverage during the boreal summer will lead to an increased importance of wind waves for the dynamic processes of the Arctic Seas. The large ice free areas lead to longer fetch and thus longer and higher sea state. Wind waves will enhance upper ocean mixing, may affect the breakup of ice sheets, and will likely lead to increased coastal erosion. The primary long-term goal is a better understanding of the two-way interaction of waves and sea-ice, in order to improve wave models as well as ice models applicable to a changing Arctic wave / and ice climate. OBJECTIVES Over the ocean, synthetic aperture radar is capable of providing wind and wave information by measuring the roughness of the sea surface. In particular, TerraSAR-X data have been used to investigate the highly variable wave climate in coastal areas (e.g. Lehner et al., 2013). However, the use of these data at the sea ice boundary is still to be utilized in full detail. In addition, TerraSAR-X data provide accurate estimates of the wind field over the ocean as well as the position (and change) of the ice edge and ice drift estimates. The main objectives of the proposed work are to adapt existing TerraSAR-X wave parameter and ic