廖洞贤,王两铭,王超,张光智,张建春. 1980. 一个直接用观测资料计算大范围散度、涡度和垂直速度的方案[J]. 气象学报, 38(4):309-320, doi:10.11676/qxxb1980.037
一个直接用观测资料计算大范围散度、涡度和垂直速度的方案
A DIRECT METHOD SUITABLE FOR CALCULATING DIVERGENCE,VORTICITY AND VERTICAL VELOCITY BY USE OF OBSERVATIONAL DATA
投稿时间:1979-06-25  修订日期:1979-11-26
DOI:10.11676/qxxb1980.037
中文关键词:  
英文关键词:
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作者单位
廖洞贤 中央气象局气象科学研究院 
王两铭 中央气象局气象科学研究院 
王超 中央气象局气象科学研究院 
张光智 中央气象局气象科学研究院 
张建春 中央气象局气象科学研究院 
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中文摘要:
      提出了一个直接用观测资料,便于用电子计算机计算大范围散度、涡度和垂直速度的方案.还提出了计算某些物理量的梯度、平流和通量的方法.对于在垂直方向不均匀分层的计算,垂直边界条件个数和连续方程不协调的问题,以及在地形起伏的山地如何计算垂直速度等问题,也作了初步讨论.最后,用一次华南大范围降水的例子进行了计算,结果和预报员经验还比较一致.
英文摘要:
      In this papar,a direct method far calculating divergence,vorticity and vertical velocity on computer,without objective analysis,is proposed.Similar technique is applicable to calculation of physical quantities,such as gradient,advection and flux.However,in practical application,there still remain some problems to be solved,such as the inconsistency between the number of the vertical boundary conditions usually specified in an atmospheric model and the order of the equation of continuity,the problem how to calculate the vertical velocity in the case of uneven vertical resolution and the case of mountainous regions.To tackle these problems,same preliminary methods have been suggested and the equivalency of two different formulations of vertical velocity has been discussed.The formulations are as follows.
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