TH744.1 98010101简易OMA系统光响应参数的测量=Photoresponseparameters measurement of simple OMA system[刊,中]/杨灿珠,林理忠,文小明(云南大学物理系.云南,昆明(650091)),徐慧,王国彦(云南大学实验中心.云南,昆明(650091))//光谱...TH744.1 98010101简易OMA系统光响应参数的测量=Photoresponseparameters measurement of simple OMA system[刊,中]/杨灿珠,林理忠,文小明(云南大学物理系.云南,昆明(650091)),徐慧,王国彦(云南大学实验中心.云南,昆明(650091))//光谱实验室.-1997,14(1).-5-7用一维CCD摄象头,多色仪及通用微机组成了简易价廉的光学多通道分析仪系统(OMA)测量了该系统的光响应参数,对测量结果进行了讨论。图4参2(吴淑珍)TH744.1 98010102干涉成象光谱仪中前置光学系统远心角对干涉调制度的影响=Effect of telecentric angle of fore-opticalsystem on the interferogram in IFTS[刊,展开更多
TH744.1 2002020893光学多通道分析仪的分辨率分析=Resolution of op-tical multichannel analyzers[刊,中]/于常青,刘杰,李家泽(北京理工大学光电工程系.北京(100081))∥光学技术.—2001,27(2).—97-99介绍了光学多通道分析仪(OMA)的...TH744.1 2002020893光学多通道分析仪的分辨率分析=Resolution of op-tical multichannel analyzers[刊,中]/于常青,刘杰,李家泽(北京理工大学光电工程系.北京(100081))∥光学技术.—2001,27(2).—97-99介绍了光学多通道分析仪(OMA)的基本组成和工作原理,分析了 OMA 系统中光谱仪的狭缝宽度。展开更多
PARASOL(Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar) multi-channel and multi-directional polarized data for different aerosol types were compared.The P...PARASOL(Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar) multi-channel and multi-directional polarized data for different aerosol types were compared.The PARASOL polarized radiance data at 490 nm,670 nm,and 865 nm increased with aerosol optical thickness(AOT) for fine-mode aerosols;however,the polarized radiances at 490 nm and 670 nm decreased as AOT increased for coarse dust aerosols.Thus,the variation of the polarized radiance with AOT can be used to identify fine or coarse particle-dominated aerosols.Polarized radiances at three wavelengths for fine-and coarse-mode aerosols were analyzed and fitted by linear regression.The slope of the line for 670 nm and 490 nm wavelength pairs is less than 0.35 for dust aerosols.However,the value for fine-mode aerosols is greater than 0.60.The Support Vector Machine method(SVM) based on 12 vector features was used to discriminate clear sky,coarse dust aerosols,fine-mode aerosols,and cloud.Two cases were given and validated by AErosol RObotic NETwork(AERONET) measurements,MODIS(Moderate Resolution Imaging Spectroradiometer) FMF(Fine Mode Fraction at 550 nm) images,PARASOL RGB(Red Green Blue) images,and CALIOP(Cloud-Aerosol Lidar with Orthogonal Polarization) VFM(Vertical Feature Mask) data.展开更多
文摘TH744.1 98010101简易OMA系统光响应参数的测量=Photoresponseparameters measurement of simple OMA system[刊,中]/杨灿珠,林理忠,文小明(云南大学物理系.云南,昆明(650091)),徐慧,王国彦(云南大学实验中心.云南,昆明(650091))//光谱实验室.-1997,14(1).-5-7用一维CCD摄象头,多色仪及通用微机组成了简易价廉的光学多通道分析仪系统(OMA)测量了该系统的光响应参数,对测量结果进行了讨论。图4参2(吴淑珍)TH744.1 98010102干涉成象光谱仪中前置光学系统远心角对干涉调制度的影响=Effect of telecentric angle of fore-opticalsystem on the interferogram in IFTS[刊,
文摘TH744.1 2002020893光学多通道分析仪的分辨率分析=Resolution of op-tical multichannel analyzers[刊,中]/于常青,刘杰,李家泽(北京理工大学光电工程系.北京(100081))∥光学技术.—2001,27(2).—97-99介绍了光学多通道分析仪(OMA)的基本组成和工作原理,分析了 OMA 系统中光谱仪的狭缝宽度。
基金supported by the National Basic Research Program of China (Grant Nos.2010CB950804 and 2013CB955801)the Strategic Priority Research Program-Climate Change:Carbon Budget and Relevant Issues (Grant No.XDA05040202)
文摘PARASOL(Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar) multi-channel and multi-directional polarized data for different aerosol types were compared.The PARASOL polarized radiance data at 490 nm,670 nm,and 865 nm increased with aerosol optical thickness(AOT) for fine-mode aerosols;however,the polarized radiances at 490 nm and 670 nm decreased as AOT increased for coarse dust aerosols.Thus,the variation of the polarized radiance with AOT can be used to identify fine or coarse particle-dominated aerosols.Polarized radiances at three wavelengths for fine-and coarse-mode aerosols were analyzed and fitted by linear regression.The slope of the line for 670 nm and 490 nm wavelength pairs is less than 0.35 for dust aerosols.However,the value for fine-mode aerosols is greater than 0.60.The Support Vector Machine method(SVM) based on 12 vector features was used to discriminate clear sky,coarse dust aerosols,fine-mode aerosols,and cloud.Two cases were given and validated by AErosol RObotic NETwork(AERONET) measurements,MODIS(Moderate Resolution Imaging Spectroradiometer) FMF(Fine Mode Fraction at 550 nm) images,PARASOL RGB(Red Green Blue) images,and CALIOP(Cloud-Aerosol Lidar with Orthogonal Polarization) VFM(Vertical Feature Mask) data.
