本溪初霜天气学特征及短期预报流程设计

The Synoptic Characteristics of Benxi Initial Frost and the Design of Short-term Forecast Procedure

利用本溪地区4个国家气象观测站逐日地面观测数据及NCPE再分析数据、历史天气图等资料,对本溪地区初霜出现时天气学特征进行分析,发现在两槽一脊和一槽一脊有涡及冷空气配合的形势下容易出现初霜,不同路径冷空气会给本溪带来不同范围的初霜,并据此进行短期时效内预报流程设计。

The synoptic characteristics of the initial frost in Benxi area were analyzed by using the daily ground observation data of four national meteorological observatories,NCPE reanalysis data and historical weather maps.It was found that the initial frost was prone to occur when there were eddies and cold air in the two-through and one-ridge and one-trough and one-ridge.Different paths of cold air will bring different range of initial frost to Benxi.Based on this,the short-term time-limited forecasting process was designed.