【摘要】 利用低空探空资料和地面气象资料,模拟三维流场时空变化规律,采用烟团轨迹模型对污染物分布情况进行了模拟.模拟结果表明,利用此方法可以较好地反映出低空各层流场的变化规律,明显提高了污染物地面浓度的模拟精度,其精度达到90%以上,较采用地面气象资料的模拟误差减少70%.更多还原

【Abstract】 By using low altitude and ground meteorological data,the variation rules from time and space of 3D wind field are simulated,and the dispersion of air pollution is modeled by using smog track model. The results show that the method reflects the variation rules of wind field with each level at low altitude,the simulating precision of ground concentration of polluted air is improved.The precision can exceed 90%,which makes a 70% reduction in the error compared with that of only using ground meteorological data.更多还原