optimal interpolation method meaning in English

最佳内插法

Observations obtained from overseas sources as well as from local networks are decoded and quality - checked for doubtful or erroneous data . short - range forecast fields i . e . 3 - hour forecast from 20 - km inner model and 6 - hour forecast from 60 - km outer model from the previous model run are used as first - guess or background in assimilating the latest observational data . objective analyses are then carried out and currently a three - dimensional optimal interpolation method is used to prepare the initial fields for the model forecast
天文台从海外及本地网络取得观测资料，经过译码后，便会进行质量控制检查，把可疑和错误的数据剔除，然后利用上一次模式运行所得出的短期预报场，即20公里内模式的3小时预报及60公里外模式的6小时预报，作为初估背景场，再注入最新观测数据，进行客观分析，以得出模式预报的初始场。