摘要
在研究夜间边界层等问题的数值模式中,采用R-S5波段模式计算大气长波辐射时,如仅积分到边界层模式顶会使向下辐射和净辐射产生误差,且导致模式顶下的虚假强辐射降温。本文讨论了这种误差的来源,并提出了一种简单有效的订正方法。
The R-S five band radiation scheme is commonly used tocalculate infrared radiation in numerical studies of the nocturnal bound-ary layer. If integration is conducted only to the top of the boundarylayer model, errors will occur in downward radiation (5-8%) and netradiation (12-20%), and mask strong radiation cooling will result nearthe model top. In this paper, the source of errors is examined and asimple, effective correcting method presented.
出处
《南京气象学院学报》
CSCD
1991年第4期581-585,共5页
Journal of Nanjing Institute of Meteorology
关键词
大气
长波
辐射
波段模式
误差
atmospheric radiation
numerical model
error
