Arctic sea ice short-time forecast for R/V Mirai 2021 cruise support

10-day sea ice forecast was conducted using ocean-ice coupled model IcePOM (e.g., De Silva et al., 2020, Polar Geography) with the aim of supporting the Arctic cruise of R/V Mirai in 2021. For initialization of the model, ocean and ice variables are nudged to RIOPS analysis by ECCC. The forecast simulation is conducted each day using ECMWF 10-day atmospheric forecast for the boundary condition. The 10-day forecast is issued each day from Aug 24, 2021 to Oct 12, 2021.本研究采用海冰-海洋耦合模式IcePOM（如De Silva等，2020，《极地地理学》）开展10天海冰预报工作，旨在为2021年R/V Mirai号科考船的北极航次提供支撑。模式初始化阶段，通过加拿大环境与气候变化部（ECCC）提供的区域海冰海洋预报系统（RIOPS）分析场，对海洋与海冰变量实施松弛逼近同化；本次预报模拟每日启动，边界条件采用欧洲中期天气预报中心（ECMWF）发布的10天大气预报场；本次10天海冰预报的发布时段为2021年8月24日至2021年10月12日，每日更新发布。