Compare Daily Sea Ice

February 25, 2009 - The SSMI images for many days in 2009 were bad enough that we removed them from this comparison display (see note below and the NSIDC website). There is enough interest in these side-by-side comparison images that we will try to replace them with corresponding images from the AMSR-E sensor in the coming weeks.

February 17, 2009 - The SSMI sensor seems to be acting up and dropping data swaths from time to time in recent days. Missing swaths will appear on these images as missing data in the southern latitudes. If this persists for more than a few weeks, we will start to fill in these missing data swaths with the ice concentration from the previous day or switch over to the higher resolution AMSR-E sensor. Note - these missing swaths do not affect the timeseries or any other plots on the Cryosphere Today as they are comprised of moving composites of at least three days.

Historic snow cover data not displayed on these images. Sea ice concentrations less than 30% are not displayed in these images. Snow cover data is displayed only for most recent dates.