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Accession Number ADA601655
Title Wave Processes in Arctic Seas, Observed from TerraSAR-X.
Publication Date Sep 2013
Media Count 6p
Personal Author A. Pleskachevsky S. Lehner
Abstract 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. 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 satellite radar data have been used to investigate the highly variable wave climate also 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 ice motion retrieval algorithms for the marginal ice zone in order to: analyze the spatial and temporal variability of the wave field in the emerging ice-free regions; investigate wave damping in sea ice and the related ice breakup; test/develop formulae of wave development (such as fetch laws) for the marginal ice zone; and provide wave field characteristics and wind data to other research groups within this DRI.
Keywords Arctic ocean
Arctic seas
Foreign reports
Germany
Marginal ice zones
Ocean waves
Sea ice
Synthetic aperture radar
Wave models
Wind


 
Source Agency Non Paid ADAS
NTIS Subject Category 47C - Physical & Chemical Oceanography
48H - Snow, Ice, & Permafrost
Corporate Author German Aerospace Center, Bremen (Germany). Remote Sensing Technology Inst.
Document Type Technical report
Title Note Annual rept.
NTIS Issue Number 1422
Contract Number N00014-13-1-0303

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