天气预报的动力-随机差分模式

计算物理 ›› 1992, Vol. 9 ›› Issue (S2): 765-766.

天气预报的动力-随机差分模式

曹鸿兴¹, 朱盛明², 蒋维东³

1. 中国气象科学研究所, 北京 100081;
2. 江苏省气象科学研究所, 南京 210008;
3. 成都气象学院气象研究所, 成都 610041

收稿日期:1992-06-27 出版日期:1992-12-31 发布日期:1992-12-31

DYNAMIC-STOCHASTIC MODEL OF WEATHER FORECASTING

Cao Hongxing¹, Zhu Shengming², Jiang Weidong³

1. Chinese Academy of Meteorological Sciences, 100081;
2. Jiangsu Provincial Institute of Meteorological Sciences, 210008;
3. Chengdu Institute of Meteororology, 610041

Received:1992-06-27 Online:1992-12-31 Published:1992-12-31

摘要/Abstract

摘要： 把天气预报提为气象场的演化问题,通过对偏微分方程中时间项的统计离散化,导得了使用多个起始场资料的预报模式。用正压模式和两层斜压模式的动力-随机差分格式分别进行了中期和月预报试验,效果与数值模式不相上下。

关键词: 天气预报, 随机差分, 决定-随机模式

Abstract: As weather forecasting is summed up as a problem of evolution of meteorological field, a forceasting model is derived by using a statistic discretization for the time differential term in a partial differnetial equation. Medium-range and month weather forecasting experiments are made with dynamic-stochastic difference schemes of barotropic model and two-layer baroclinic model respectively, forecast accuracy of models is comparable to a mumerical model.

Key words: weather forecasting, stochastic difference, deterministic-stochastic model

曹鸿兴, 朱盛明, 蒋维东. 天气预报的动力-随机差分模式[J]. 计算物理, 1992, 9(S2): 765-766.

Cao Hongxing, Zhu Shengming, Jiang Weidong. DYNAMIC-STOCHASTIC MODEL OF WEATHER FORECASTING[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1992, 9(S2): 765-766.