CAJ | 학술논문

该工作利用区域模式(WRF)，对我国东部三大城市群区域的气溶胶活化颗粒物浓度增加的气候效应进行了模拟研究。结果表明：增加气溶胶活化颗粒物后，我国东部许多地区的地表感热、潜热通量减少，华东大部分地区的地表2m气温降低；降水对气溶胶活化颗粒物浓度增加的响应较为复杂，缺乏一致的规律性，但增加活化颗粒物后，我国东部许多地区的降水明显减少；由气溶胶活化颗粒物浓度变化造成的大气水汽输送和水汽含量的变化，是气溶胶间接效应影响东亚夏季风降水的主要原因。从总体上来说，中国不同地区的气溶胶活化颗粒物浓度增加，使得中国东部大部分地区的低层气温降低、大气湿度降低、降水减少，呈现出干冷化的趋势。
해공작이용구역모식(WRF)，대아국동부삼대성시군구역적기용효활화과립물농도증가적기후효응진행료모의연구。결과표명：증가기용효활화과립물후，아국동부허다지구적지표감열、잠열통량감소，화동대부분지구적지표2m기온강저；강수대기용효활화과립물농도증가적향응교위복잡，결핍일치적규률성，단증가활화과립물후，아국동부허다지구적강수명현감소；유기용효활화과립물농도변화조성적대기수기수송화수기함량적변화，시기용효간접효응영향동아하계풍강수적주요원인。종총체상래설，중국불동지구적기용효활화과립물농도증가，사득중국동부대부분지구적저층기온강저、대기습도강저、강수감소，정현출간랭화적추세。
Weather Research and Forecasting (WRF )model coupled with Morrison’s double-moment bulk microphysical scheme is used to simulate the climate effect of increasing aerosol in three mega city agglomeration. The results show that while increasing concentrations of aerosol particles,sensitive and latent heat at land surface decrease over most eastern China area,at the same time,temperature at 2 m decreases as well in most of east China. As far as concentrations of aerosol particles increased,the response relationship between concentration of aerosol particles and precipitation is complex,lacking identical regularity,but precipitation decreases over most of eastern China area.The increase of aerosol particles concentration lead to atmospheric water vapor transportation changes, which is the main reason of aerosol indirect effect on east Asian summer monsoon precipitation changes.On the other hand,vertical circulation change is the subsidiary factor to lead the east Asian summer monsoon precipitation change.In short,increase in aerosol concentrations lead to reduced precipitation,decreased atmospheric humidity and temperature in the lower atmosphere over most of eastern China,showing a dry and cold climatic trends.