摘要
本文用实际天气过程的数值预报,试验了青藏高原反照率、拖曳系数及土壤温度等因子对短期数值预报质量的影响。结果表明,对于高空环流形势,在48小时预报时效内影响不明显,但青藏高原的热力作用可改变高低空流场强度以及降水分布和降水量。
A series of numerical weather prediction experiments has been made in this paper to investigate the effects of the surface properties such as the albedo, drag coefficient and ground temperature of the Tibetan Plateau on prediction. Res ilts show that the influences of surface properties on the upper tropospheric circulation patterns for 48 hour's prediction are not significant, however, the heating effect of the Plateau can change the intensity of the lower level circulation, as well as the higher level flow pattern, it also influences the distribution and the amount of model precipitation.
出处
《气象科学》
CSCD
北大核心
1990年第2期129-138,共10页
Journal of the Meteorological Sciences
