Assessment and comparison of atmospheric environmental sensitivity of mountain cities based on different meteorological data
Taking Dehong Prefecture,Yunnan Province,a typical low-latitude plateau mountain city,as an example,the WRF_CALPUFF model was used to carry out atmospheric environment sensitivity assessment and identify sensitive areas based on this model.WRF simulation results and ground meteorological station observation data were respectively used as input ground meteorological data for the model.The data and methods applicable to the assessment of atmospheric environmental sensitivity in mountain cities were discussed.The results showed that the diffusion index calculated by the two methods could reflect the spatial difference of diffusion capacity caused by terrain difference,and the identification of weak diffusion region was reliable.The meteorological background field adopts the method of combining WRF high-altitude simulation data and ground meteorological station observation data,and the evaluation results are reliable,with the characteristics of difficult-to-obtain basic data,low technical difficulty and low time cost.If station data could be obtained,this method was recommended.WRF simulation results were used for all meteorological background fields,and the uncertainty in identifying the layout-sensitive area was relatively high,mainly due to the high uncertainty in wind field simulation in complex terrain areas.However,the method was characterized by easy access to basic data,high technical difficulty and high time cost.If this method was adopted,the simulation accuracy should be improved to ensure the reliability of evaluation results.
万方数据
维普
