Geoscience Reference
In-Depth Information
Fig. 7.
Sea ice motion map in Bering Sea from AMSR-E 89 GHz data.
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method. The spatial resolution is 75 km
75 km, much larger than that
for SAR data. However, the general motion of a translation and a rotation
around the St. Lawrence Island can be observed.
3. Conclusions and Outlook
We have presented results of sea ice motion and deformation studies using
automated sea ice classification and statistical methods from SAR imagery.
We observe in Figs. 6 and 7 that an ice motion (of spatial scale larger than
10 km) consists of a translation and a rotation around the St. Lawrence
Island. Wind forcing and ocean current might be the major courses of
this motion. By tracking the change of a uniform grid in Fig. 4 to the
deformed grid in Fig. 5, a clearer picture is revealed of the ice field defor-
mation at a spatial scale of about 5 km. Wind, wave and ice floe colli-
sions may have played important roles for these smaller scale variations.
A more detailed comparison study of SAR and AMSR-E data has been
planned. Furthermore, inter-comparison between remotely sensed products
