盛裴轩,毛节泰. 1997. 东北亚地区污染物输送的等熵轨迹分析——周边国家对中国的影响[J]. 气象学报, 55(5):588-601, doi:10.11676/qxxb1997.057
东北亚地区污染物输送的等熵轨迹分析——周边国家对中国的影响
THE ISENTROPIC TRAJECTORY ANALYSES ON TRANS PORT OF POLLUTANTS IN NORTHEAST ASIA——INFLUENCE ON CHINA FROM NEIGHBORING COUNTRIES
投稿时间:1996-06-27  修订日期:1996-12-16
DOI:10.11676/qxxb1997.057
中文关键词:  远距离输送  等熵轨迹  东北亚
英文关键词:Transport of air pollutants  Isentropic trajectory  Northeast Asia
基金项目:家八五攻关项目85-912-01-02专题
作者单位
盛裴轩 北京大学地球物理系暴雨监测与预报国家重点实验室, 北京, 100871 
毛节泰 北京大学地球物理系暴雨监测与预报国家重点实验室, 北京, 100871 
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中文摘要:
      利用等熵轨迹模式研究了中国北方和邻国几个大城市排放的污染物的输送趋势。计算了1992-1994年期间1,4,7和10月的每天两次轨迹,并以这些城市为目标,对其前向或后向轨迹线上每30min的轨迹点作统计,画出等熵轨迹概率分布图。这些图形表明,等熵轨迹的概率分布能很好地反映污染物的中、远程输送且有明显的季节变化。就前向轨迹区而言,在除夏季外的其它季节里,蒙古乌兰巴托的轨迹区能覆盖到中国华北,俄罗斯的赤塔也能影响到中国东北的大兴安岭地区。而平壤和汉城的前向轨迹区在夏季可向北伸展到中国。
英文摘要:
      The transport of air pollutants from cities in the north of China and neighboring countries is researched by using isentropic trajectory model. The trajectories are calculated twice daily for some larger cities in January, April, July and October for the period of 1992-1994. The statistical method has been used to deal with trajectory dots at intervals of 30 minutes for the forward and backward trajectories during 0-24h and 24-48h. The probability distribution diagrams of trajectory can show clearly the ensemble properties of isentropic trajectories for each city and the dominant transport directions of pollutants. Those possess no table seasonal variations. The forwar dtrajectory areas of China of the Ulaan Baatar in Mongolia can spread over north of China, and those of the Chita in Russia can spread over the northeast areas of China except summer. In July the forward trajectory of Pyongyang and Seoul can extend within the boundaries of China.
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