Air pumping for alleviation of heavy smog in Beijing

作     者：Yaping SHAO Sven ULBRICH Dehui CHEN 

作者机构：Institute for Geophysics and MeteorologyDepartment of GeosciencesUniversity of CologneCologne 50923Germany China Meteorological AdministrationBeijing 100081China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2018年第61卷第7期

页      面：973-979页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.91537211) 

主　　题：Beijing air quality Air pumping Numerical modelling Inversion 

摘      要：Beijing often suffers under heavy *** such events which occur mostly in autumn and winter,people are desperate for fresh *** formation of heavy smog is due to foremost human induced air pollution,but geographic and meteorological conditions,especially below a surface inversion,play an important *** propose to destroy the inversion by pumping air from above the inversion layer to the surface layer to alleviate the severity of the *** long-term air quality improvement depends on the reduction of air pollution emission,air pumping may provide relief in the interim for the Beijing *** estimate that an air pumping at a rate 2×10~7m^3s^(–1)can lead to significantly improved air quality in Beijing,due to(1)direct clean air input;(2)increased instability and vertical mixing and(3)a positive radiation-mixing *** pumping requires an energy input of 10 GW,comparable with the energy consumption in Beijing for air conditioning in *** propose to use wind energy from Inner Mongolia for the pumping,which has currently an installed wind energy capacity of 70GW.