A method for the assimilation of data on sea ice concentration in the NEMO—LIM3 multicategory sea ice model is presented for application in the operational technology of the ocean state diagnosis and forecasting. The method is based on the relaxation procedure for ice concentration in the sea ice model which is used along with the 3DVAR analysis for temperature and salinity of sea water in the ocean circulation model. The verification of the method based on data for 2011–2015 revealed that the assimilation of sea ice concentration brings model simulation of ice characteristics close to the observed values.

中文翻译：

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NEMO-LIM3多类海冰模型中海冰浓度数据同化的松弛方法

提出了一种NEMO-LIM3多类海冰模型中海冰浓度数据同化方法，用于海况诊断和预报业务技术。该方法基于海冰模型中冰浓度的松弛程序，该程序与3DVAR分析一起用于海洋循环模型中海水的温度和盐度。基于2011-2015年数据的方法验证表明，海冰浓度的同化使冰特征的模型模拟接近观测值。