first-guess model 中文意思是什麼
first-guess model
解釋
初始假想模型-
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
天文臺從海外及本地網路取得觀測資料,經過譯碼后,便會進行質量控制檢查,把可疑和錯誤的數據剔除,然後利用上一次模式運行所得出的短期預報場,即20公里內模式的3小時預報及60公裡外模式的6小時預報,作為初估背景場,再注入最新觀測數據,進行客觀分析,以得出模式預報的初始場。
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