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Peterson模型的参数选择及优化 被引量:4

Parameter Selection and Optimization of Peterson Model
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摘要 利用全球25个气象站点的实测水平气象能见度和同步MODIS气溶胶光学厚度数据,对影响Peter-son模型精度的参数——气溶胶标高进行反演,并采用二次模型来描述气溶胶标高随时间的变化。最后,将二次模型引入Peterson模型对其进行修正。用相对误差和RMSE来进行评价,改进Peterson模型与传统Peterson模型相比,精度有较大提高。 Based on the classical Peterson model of horizontal visibility and aerosol optical depth,using visibility data of 25 global climate meteorological stations and measured synchronous MODIS aerosols optical depth data,we invert the key parameter aerosol scale height H,which influences the accuracy of Peterson model severely.We describ the variation tendency of aerosol scale height by quadratic curve model,and introduce this model to Peterson model.Using the relative error and RMSE to assess the precision of Peterson model and modified Peterson model,the precision of modified Peterson model is improved.
出处 《武汉大学学报(信息科学版)》 EI CSCD 北大核心 2011年第9期1025-1029,共5页 Geomatics and Information Science of Wuhan University
基金 国家973计划资助项目(2009CB723905) 国家自然科学基金资助项目(10978003 40871171 40801152) 华中科技大学武昌分校教改基金资助项目
关键词 转换模型 气溶胶光学厚度 能见度 大气校正 convert model AOD visibility atmospheric correction
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