Surface ocean currents in polar regions can be monitored by satellite altimetry-derived geostrophic currents. However, they are characterized by an irregular and sparse data sampling. Therefore, novel methods like an unsupervised classification for detecting water areas within the sea ice area and a combination strategy based on a principal component analysis for linking ocean model output with an altimetry-derived ocean topography are developed to enable a consistent computation of ocean surface currents.
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Surface ocean currents in polar regions can be monitored by satellite altimetry-derived geostrophic currents. However, they are characterized by an irregular and sparse data sampling. Therefore, novel methods like an unsupervised classification for detecting water areas within the sea ice area and a combination strategy based on a principal component analysis for linking ocean model output with an altimetry-derived ocean topography are developed to enable a consistent computation of ocean surfac...
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