陈嘉滨,张道民,朱抱真. 1982. 一个修正的σ坐标初始方程斜压模式的分裂显式积分[J]. 气象学报, 40(4):398-408, doi:10.11676/qxxb1982.044
一个修正的σ坐标初始方程斜压模式的分裂显式积分
A SPLIT EXPLICIT INTEGRATION OF PRIMITIVE EQUATION MODEL IN MODIFIED COORDINATE
投稿时间:1980-12-09  修订日期:1981-06-04
DOI:10.11676/qxxb1982.044
中文关键词:  
英文关键词:
基金项目:
作者单位
陈嘉滨 中国科学院大气物理研究所 
张道民 中国科学院大气物理研究所 
朱抱真 中国科学院大气物理研究所 
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中文摘要:
      为了节省计算时间,本文对一个修正的σ坐标初始方程斜压模式作了分裂显式积分的研究.把大气运动分为平流过程和适应过程.在时间积分上对平流过程采用欧拉后差,对适应过程采用向前—向后差分格式,得到积分15天的稳定结果.计算时间比显式节省了60%左右,而预报效果相似.
英文摘要:
      A split explicit integration of 5-level primitive equation model in modified σ-coordinate is investigated. The governing equations are divided into two process: advection and adjustment process. The former equations are written in the form as(12)-(14), and the latter in the form as(7)-(11). The Euler-Backward Scheme is used in the advection process, and the Forward-Backward scheme is used in the ad justment process.The above scheme has been successfully integrated up to 15 days for an example, and the computation time is only 40% of that of the explicit scheme.
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