Abstract

利用地面AERONET/PHOTONS气溶胶观测网北京和香河站点的资料,在北京地区对POLDER-2/PARASOL卫星多角度偏振信息获得的气溶胶反演产品进行了验证分析。地基AERONET/PHOTONS观测网的体积谱分布资料分析显示,在北京地区气溶胶尺度分布的细粒子截断半径约为0.3μm。将POLDER-2/PARASOL卫星气溶胶业务产品和重新定义的地基AERONET/PHOTONS细模态(半径r<0.3μmï¼‰æ°”æº¶èƒ¶å ‰å­¦åŽšåº¦ï¼ˆAOT)比较,ä¸¤è€ åœ¨åŒ—äº¬åœ°åŒºæœ‰ç€å¾ˆå¥½çš„ä¸€è‡´æ€§,说明卫星的气溶胶业务反演产品表征了主要来自人类污染排放的细粒子气溶胶贡献。然而,由于POLDER系列卫星业务反演方法固定了埃斯屈朗(ngstrm)指数的变化范围是1.8~3.0,é€ æˆäº†ç»†ç²’å­è´¡çŒ®å ç»å¯¹ä¸»å¯¼çš„å±€é™ã€‚ç”±åœ°åŸºAERONET/PHOTONS观测资料的分析可知,è¿™ä¸ªåŸƒæ–¯å±ˆæœ—æŒ‡æ•°çš„å ˆéªŒå€¼è¿œè¿œå¤§äºŽåŒ—äº¬åœ°åŒºçš„åœ°åŸºæµ‹é‡ç»“æžœ,导致了POLDERä¸šåŠ¡åæ¼”çš„æ°”æº¶èƒ¶å ‰å­¦åŽšåº¦åä½Ž,埃斯屈朗指数偏高。

Keywords:
AERONET Beijing Environmental science Aerosol Photon Remote sensing Atmospheric sciences Meteorology Geography Physics Optics

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Topics

Atmospheric Ozone and Climate
Physical Sciences →  Earth and Planetary Sciences →  Atmospheric Science
Atmospheric chemistry and aerosols
Physical Sciences →  Earth and Planetary Sciences →  Atmospheric Science
Atmospheric aerosols and clouds
Physical Sciences →  Environmental Science →  Global and Planetary Change
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