Special Sensor Microwave / Imager (SSM/I) and Special Sensor Microwave / Imager Sounder (SSM/IS) have been used to produce a finer resolved sea-ice concentration data set gridded onto a polar-stereographic grid true at 70 degrees with 12.5 km grid resolution. The sea ice concentration data available here have been computed at IFREMER by applying the ARTIST Sea Ice (ASI) algorithm to brightness temperatures measured with the 85 GHz SSM/I and/or SSM/IS channels. These channels have a considerably finer spatial resolution than the commonly used lower frequency channels.
The ASI algorithm is described in Kaleschke et al. (2001) and Spreen et al. (2008).
ICDC applies a 5-day median filter to reduce the weather influence (see e.g. Kern et al. (2010)).
So far there are no estimates of the uncertainties included in the data product. This is planned for version 02 of this data product.
Last update of data set at ICDC: April 12 2018.