CAJ | 학술논문

利用2007和2008年北京地区空气质量监测资料和NCEP再分析资料,分析了北京地区空气动力学当量直径小于等于10 μm颗粒物(PM10)污染过程与天气形势及天气系统之间的关系.结果表明:西太平洋热带气旋路径对北京地区发生PM10污染具有预示作用,即当热带气旋北上并在朝鲜半岛或日本登陆的情况下,北京地区一般受持续均压场等弱中尺度天气系统控制,这种中尺度天气系统不利于污染物的扩散,因此北京地区经常发生区域性的PM10空气污染事件.在2007年9次台风北上登陆朝鲜半岛或日本的过程中, 北京地区伴随发生了9次PM10污染过程,预示准确率达100%,2008年的预示准确率也达到了80%以上.为了说明北京奥运会期间污染控制措施对改善北京空气质量有实际效果,利用中国科学院大气物理研究所区域空气质量模式NAQPMS,采用无控制措施源和有控制措施源,对2008年北京残奥会期间一次西太平洋北上型热带气旋天气条件下的空气质量状况进行了数值模拟试验,揭示了此次过程北京地区未发生PM10空气污染的原因.
이용2007화2008년북경지구공기질량감측자료화NCEP재분석자료,분석료북경지구공기동역학당량직경소우등우10 μm과립물(PM10)오염과정여천기형세급천기계통지간적관계.결과표명:서태평양열대기선로경대북경지구발생PM10오염구유예시작용,즉당열대기선북상병재조선반도혹일본등륙적정황하,북경지구일반수지속균압장등약중척도천기계통공제,저충중척도천기계통불리우오염물적확산,인차북경지구경상발생구역성적PM10공기오염사건.재2007년9차태풍북상등륙조선반도혹일본적과정중, 북경지구반수발생료9차PM10오염과정,예시준학솔체100%,2008년적예시준학솔야체도료80%이상.위료설명북경오운회기간오염공제조시대개선북경공기질량유실제효과,이용중국과학원대기물리연구소구역공기질량모식NAQPMS,채용무공제조시원화유공제조시원,대2008년북경잔오회기간일차서태평양북상형열대기선천기조건하적공기질량상황진행료수치모의시험,게시료차차과정북경지구미발생PM10공기오염적원인.
The relationship between the synoptic pattern and particle matter less than 10 μm(PM10) air pollution episode in Beijing area is analyzed by utilizing air quality monitoring data and NCEP reanalysis data.It is indicated that the track of the western Pacific tropical cyclone can foretell whether a PM10 air pollution episode will happen in Beijing area, namely when the tropical cyclone moves northward and finally lands on the Korean Peninsula or Japanese mainland, a PM10 air pollution episode most possibly happens in one day or several days in Beijing area, e.g., there are nine and five PM10 pollution episodes occurring under such synoptic conditions in 2007 and 2008, respectively. In order to evaluate the actual impact of air pollution source control measures on the amelioration of air quality during the 2008 Beijing Olympic Games,one case study is performed by using NAQPMS/IAP model under both control and non-control emission scenarios, and then the impact of air pollution source control measures is revealed.