Summer sea ice motion from the 18 GHz channel of AMSR‐E and the exchange of sea ice between the Pacific and Atlantic sectors

We demonstrate that sea ice motion in summer can be derived reliably from the 18GHz channel of the AMSR‐E instrument on the EOS Aqua platform. The improved spatial resolution of this channel with its lower sensitivity to atmospheric moisture seems to have alleviated various issues that have plagued summer motion retrievals from shorter wavelength observations. Two spatial filters improve retrieval quality: one reduces some of the microwave...