We introduce the OSI-450, the SICCI-25km and the SICCI-50km climate data records of
gridded global sea-ice concentration. These three records are derived from passive …

A new version of sea ice motion and age products includes several significant upgrades in
processing, corrects known issues with the previous version, and updates the time series …

Polynyas are sections of the polar ocean that remain relatively ice-free during winter,
imparting significant physical and biological impact on the region. The North Water polynya …

Climate observations inform about the past and present state of the climate system. They
underpin climate science, feed into policies for adaptation and mitigation, and increase …

This paper presents the first long-term climate data record of sea ice extents and backscatter
derived from intercalibrated satellite scatterometer missions (ERS, QuikSCAT and ASCAT) …

We investigate the structure and evolution of multiphase ice-ocean interfaces ('mushy
layers') and the implications for the geophysics and habitability of ice-ocean worlds …

While Arctic sea ice is changing, new observation methods are developed and process
understanding improves, whereas gaps in observations and understanding evolve. Some …

Across spatial and temporal scales, sea-ice motion has implications for ship navigation, the
sea-ice thickness distribution, sea-ice export to lower latitudes and re-circulation in the polar …

Pressure ridges, formed by sea ice deformation, affect momentum transfer in the Arctic
Ocean and support a larger biomass than the surrounding-level ice. Although trends in …

Arctic sea ice type (SITY) variation is a sensitive indicator of climate change. However,
systematic inter-comparison and analysis for SITY products are lacking. This study analysed …