Greenland ice sheet (GrIS) is the second largest ice sheet on Earth, with a global sea level equivalence of around seven meters. Under current global warming, GrIS is experiencing rapid ice mass loss due to various processes such as accelerated ice flow, calving of tide-water glaciers, enhanced supraglacial hydrology, darkening of ice sheet surface and cloud-snow-radiation interactions, etc. These processes can lead to either a stable mass loss or abrupt change of ice sheet under the scenarios of future climate change. We welcome the submission of manuscripts on the following but not limited to topics:

· Recent monitoring system on GrIS with advanced techniques;

· Interactions of GrIS with atmosphere and ocean (including sea ice);

· Surface mass balance observation, reconstruction and modeling;

· Ice flow dynamics, ice discharge estimation and global sea level contribution;

· GrIS hydrology and other processes that may trigger ice sheet instabilities.

APS is an international, peer-reviewed and open-access journal sponsored by the Polar Research Institute of China (PRIC) and Chinese Society for Oceanography. Since 2015, APS has become more truly international, and been improving, with its inclusion in Scopus in May of 2020, with the appointments of two new Co-Editors-in-Chief (Dr. Huigen Yang and Dr. Ad H.L. Huiskes), and a new expert team of 38 disciplinary editors. Articles published on APS are free of charge with generous funding from PRIC.

As this will be a scheduled special issue of APS, there will be strict adherence to the following deadlines.

·  15 December 2022 —deadline for submitting titles of possible contributions;

·  31 March 2023 —deadline for submitting a manuscript for this issue;

· 15 July 2023 —deadline for submission of the final accepted paper;

·  September 2023 —publication date.

Length Limit:

The limit extension of 15 printed pages (about 10000 words) for each paper.

Guest Editors

Dr. Cunde Xiao, cdxiao@bnu.edu.cn

State Key Laboratory of Earth Surface Processes and Ecology Resources, Beijing Normal University, 100871, China

Research themes: ice core studies, climatology of polar regions, ice sheet and sea level changes, cryospheric changes and socioeconomic impacts.

Dr. William Colgan, wic@geus.dk

Geological Survey of Denmark and Greenland

Research themes: computer simulations of ice flow, satellite observations of ice-sheet mass balance and glacier-related geotechnical challenges, and ice-sheet fieldwork in support of these themes.

Dr. Zhuoqi Chen, chenzhq67@mail.sysu.edu.cn

School of Geospatial Engineering and Science, Sun Yat-sen University, Guangzhou 510275, China

Research themes: remote sensing, polar science

Dr. Liming Jiang, jlm@apm.ac.cn

State Key Laboratory of Geodesy and Earth’s Dynamics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430077, China

Research themes: remote sensing of cryosphere, polar geodesy, monitoring and modeling of ice sheet instability

Dr. Minghu Ding, dingminghu@foxmail.com

Chinese Academy of Meteorological Sciences, Beijing, 100081, China

Research themes: observational techniques and land physical processes in three pole regions, weather and climate of polar regions

Dr. Tong Zhang, tzhang@bnu.edu.cn

State Key Laboratory of Earth Surface Processes and Ecology Resources, Beijing Normal University, 100871, China

Research themes: ice sheet dynamics and numerical modelings