摘要
首先建立了一个复杂地形条件下的中尺度三维边界层预报模式,模拟研究了局地海陆风环流条件下的三维风场。并将其输出直接作为一个三维欧拉数值模式的输入,以模拟沿海地区海陆风演变过程中,空气污染物(SO_2)浓度的时空分布。为更接近实际,还专门建立了一个只需少量常规气象资料输入的背景风诊断模式。较好地完成了这三个模式间的联接。实例模拟计算的结果表明,此联接模式是行之有效的。
A 3-D mesoscale Planetary boundary layer (PBL) dynamics prognostic in complex terrain was established to simulate 3-D mesoscale flow field under local sea-land breeze circulation. The output of the PBL model was taken as the input of an Eulerian model for simulating the temporal and the spatial distribution of air pollutant (SO2) during the development of sea-land breeze in coastal area. A diagnosing model was adopted to obtain a background winds for providing an initial wind field for the PBL model.By combining three models together,a 3-D numerical air quality model for coastal area was obtained and applied to simulate the air pollutant distribution in Bohai Sea area in May 29, 1986. The calculated results was quite agree with those observed.
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1991年第1期63-70,共8页
Acta Scientiae Circumstantiae
关键词
三维风场
废物
输送扩散模式
Air quality model
numerical modeling
coastal area
dispersion.
