Simulated Sea Ice and Snow Thickness along the MOSAIC drift trajectory, from AWI-CM-1 and AWI-CM-3 nudged simulations.

Sea ice thickness and snow (on sea ice) thickness from nudged simulations performed using the coupled climate models AWI-CM-1 (zonal wavenumber truncated at 20) and AWI-CM-3 (T20 truncation; Pithan et al., 2023) with a 1h relaxation time. The model data is collocated to the drift trajectory of the Multidisciplinary Drifting Observatory for the Study of the Arctic Climate (MOSAIC) across the Arctic Ocean, from 01 September 2019 until 31 August 2020. The collocation is done daily, by finding all model grid cells within the area covered by the distributed network of snow and sea ice measuring instruments deployed and maintained during MOSAIC. The sea ice and snow thickness is then spatially averaged for each day.  
Data is provided in three .nc files for each model and variable (m_ice for sea ice thickness, m_snow for snow thickness) representing ensemble members 1 to 3.

本数据集的数据来自采用耦合气候模式AWI-CM-1（纬向波数截断至20）与AWI-CM-3（采用T20截断；Pithan等，2023）开展的松弛模拟（nudged simulations），模拟设置1小时松弛时间，包含海冰厚度及海冰表面积雪厚度两类参数。模式数据被匹配至北极气候多学科漂流观测站（Multidisciplinary Drifting Observatory for the Study of the Arctic Climate, MOSAIC）于2019年9月1日至2020年8月31日期间横跨北冰洋的漂流轨迹。匹配过程每日进行，通过定位MOSAIC项目期间部署并维护的积雪与海冰测量仪器分布式观测网覆盖范围内的所有模式网格单元完成。随后对每日的海冰与积雪厚度进行空间平均计算。
针对每个模式与变量（m_ice代表海冰厚度，m_snow代表积雪厚度），提供对应集合成员1至3的3个.nc格式数据文件。