The Alfred Wegner Institute (AWI) in Germany merge weekly CryoSat data with daily SMOS data to generate a weekly-averaged product every day. As well as being used for forecasts, these combined data show that the volume of sea ice in the 2020-21 winter season was at its lowest since these sea-ice data products began in 2010. The image on the left shows sea-ice thickness on 9–15 April 2021 and the image on the left shows the sea-ice thickness on 9–15 April 2021 compared to the average thickness on 9–15 April between 2011 and 2020.
Read full story: Arctic sea ice succumbs to Atlantification