环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2014年
4期
22-27
,共6页
后向轨迹%轨迹多元回归%聚类分析%潜在源贡献因子%浓度权重轨迹%PM2.5
後嚮軌跡%軌跡多元迴歸%聚類分析%潛在源貢獻因子%濃度權重軌跡%PM2.5
후향궤적%궤적다원회귀%취류분석%잠재원공헌인자%농도권중궤적%PM2.5
Back ward trajectory%Trajectory multi-linear regression%Cluster analysis%Potential source contribution factors%Concentration-weighed trajectory%PM2.5
利用后向轨迹模型,结合上海 PM2.5的浓度数据计算了2012年6月27日-2013年6月26日以上海为起始点的后向轨迹,并通过轨迹相关的分析方法,研究不同来源区域对上海 PM2.5浓度的贡献影响。结果表明:长三角地区的排放对上海的贡献最为显著;苏北、山东等地区的排放对上海也有较明显的贡献;来自海面的贡献总体低于大陆。所采用的轨迹多元回归分析法为 PM2.5的来源分布及传输特征研究提供了新思路。
利用後嚮軌跡模型,結閤上海 PM2.5的濃度數據計算瞭2012年6月27日-2013年6月26日以上海為起始點的後嚮軌跡,併通過軌跡相關的分析方法,研究不同來源區域對上海 PM2.5濃度的貢獻影響。結果錶明:長三角地區的排放對上海的貢獻最為顯著;囌北、山東等地區的排放對上海也有較明顯的貢獻;來自海麵的貢獻總體低于大陸。所採用的軌跡多元迴歸分析法為 PM2.5的來源分佈及傳輸特徵研究提供瞭新思路。
이용후향궤적모형,결합상해 PM2.5적농도수거계산료2012년6월27일-2013년6월26일이상해위기시점적후향궤적,병통과궤적상관적분석방법,연구불동래원구역대상해 PM2.5농도적공헌영향。결과표명:장삼각지구적배방대상해적공헌최위현저;소북、산동등지구적배방대상해야유교명현적공헌;래자해면적공헌총체저우대륙。소채용적궤적다원회귀분석법위 PM2.5적래원분포급전수특정연구제공료신사로。
Back ward trajectory model was used along with PM2.5 concentration data of Shanghai to compute the backward air flow trajectories starting from June 27,2012 to June 26,2013.Based on the trajectories,study of PM2.5 source contribution in Shanghai was conducted with trajectory related methods.The results showed that the emission in Yangtze River Delta region was the major contribution,emissions from the areas in Shandong Province and northern Jiangsu Province were also an important contribution source,while contribution from the seas was much less than that from the land.Among the analysis methods,TMLR provides a new idea for the study of PM2.5 source distribution and transportation characteristics.