CAJ | 학술논문

应用Hysplit传输扩散模式计算2008—2009年大连地区酸雨和非酸雨期间的后向气流轨迹，利用条件概率和轨迹聚类法分析气流轨迹，探讨大连地区酸雨外来源。结果表明：外来源通过大气输送对大连地区酸沉降的贡献较大。大连地区酸雨主要受中国华东沿海至山东半岛经黄海中北部或经渤海及其西岸的近地面大气污染输送影响，中国华东和华南等南方内陆地区和日本海周边东亚国家对大连地区酸雨均有贡献。海洋性气团或北方大陆气团一般为大连地区非酸雨来源。
응용Hysplit전수확산모식계산2008—2009년대련지구산우화비산우기간적후향기류궤적，이용조건개솔화궤적취류법분석기류궤적，탐토대련지구산우외래원。결과표명：외래원통과대기수송대대련지구산침강적공헌교대。대련지구산우주요수중국화동연해지산동반도경황해중북부혹경발해급기서안적근지면대기오염수송영향，중국화동화화남등남방내륙지구화일본해주변동아국가대대련지구산우균유공헌。해양성기단혹북방대륙기단일반위대련지구비산우래원。
Air parcel backward trajectory during periods with acid and no-acid rain from 2008 to 2009 in Dalian was calculated based on a Hysplit model,and external source of acid rain was analyzed by methods of a conditional probability distribution and a trajectory clustering.The result shows that the external source transported through at-mosphere makes a greater contribution to acid deposition in Dalian area.The main source of acid rain owe to near-surface atmospheric transportation comes from the East China coast to Shandong peninsula,passing through north Huanghai Sea or Bohai Sea and its west coast,and the lower-air atmospheric transportation from the inland area of southward and eastward of China and East Asia countries around Japan Sea provides additional sources.On the contrary,source of no-acid rain comes from ocean air mass or northward land air mass.