Editorial

1. An outstanding example of cooperation between Arctic and non-Arctic countries in cryosphere and climate research: Sino-Finnish cooperation for more than 30 years

Reviews

1. The rise of sea ice research collaboration between China and Finland
2. Early glaciological and Quaternary Geology cooperation
3. Physics of Arctic landfast sea ice and implications on the cryosphere: an overview
4. An overview of Antarctic polynyas: sea ice production,forcing mechanisms, temporal variability and water mass formation

Articles

1. Observation and modelling of snow and sea ice mass balance and its sensitivity to atmospheric forcing during spring and summer 2007 in the Central Arctic
2. An observational study of precipitation types in the Alaskan Arctic
3. Variation of Antarctic marginal ice zone extent(1989-2019)
4. Modelling on seasonal lake ice evolution in central Asian arid climate zone: a case study
5. Tensile strength of sea ice using splitting tests based on the digital image correlation method
6. Cover picture: snapshots of the long term cooperation between China and Finland
7. One special issue will be published in 2022
8. The role of lake heat flux in the growth and melting of ice