MODIS C006气溶胶光学厚度产品在京津冀典型环境背景下的适用性
|
摘要
选取3个代表京津冀地区典型环境背景下的站点——北京、香河和兴隆,利用AERONET地基观测的气溶胶光学厚度(AOD)数据,研究了MODIS针对暗地表的C051暗像元法(DT C051)和C006暗像元法(DT C006),针对亮地表的C006深蓝算法(DB C006),以及融合了暗像元法和深蓝算法的融合产品(Combined C006),探讨了基于上述算法的AOD产品在京津冀地区的适应性.结果表明:(1)C006算法的改进对北京和香河站点反演AOD的精度改善较大,而在兴隆站点改善不明显;北京站点,C006深蓝算法AOD适用性最佳;位于城郊的香河站,C006暗像元法AOD最接近AERONET AOD;植被茂盛的兴隆站,Combined C006 AOD反演精度最高.(2)MODIS DT C006在北京站点的反演误差可能是由气溶胶模型与地表反照率共同造成的;MODIS DB C006在香河站点反演误差主要来源于春季的地表反照率和冬季的气溶胶模型两方面.(3)相较于DT C051AOD,DT C006有效数据覆盖率有所降低,但DB C006和Combined C006的数据覆盖率有所增加,且Combined C006 AOD产品数据覆盖率最广;结合MODIS AOD与各站点AERONET的对比验证,结果表明,Combined AOD产品在京津冀地区适用性最佳.
By fitting with the aerosol optical depth(AOD) from AERONET ground observations at sites in Beijing,Xianghe,and Xinglong with different environmental backgrounds,MODIS C051 Dark Target(DT C051),C006 Dark Target(DT C006),C006 Deep Blue(DB C006),and C006 Deep Blue/Dark Target merged AOD products were compared and evaluated to understand their applicability in the Beijing-Tianjin-Hebei region.The main conclusions are as follows:(1) The comparison of the C051 and C006 algorithms shows that the accuracy of the AOD at the Beijing and Xianghe sites notably improved,while an improvement was not observed at the Xinglong site;the DB C006 AOD is closest to the AERONET AOD at the Beijing site and the DT C006 AOD is closest to the AERONET AOD at the Xianghe site;the combined C006 AOD is closest to the AERONET AOD at the Xinglong site.(2) The inversion error of the MODIS DT C006 at the Beijing site is caused by the improper selection of the aerosol model and surface reflectance;the inversion error of the MODIS DB C006 is mainly due to surface reflectance in spring and the aerosol model in winter.(3) Compared with the DT C051 AOD,the effective data coverage of the DT C006 is reduced,but that of DB C006 and the combined C006 increased;the combined C006 AOD data have the largest coverage.The results show that the application of the combined AOD product is best for the Beijing-Tianjin-Hebei region.
By fitting with the aerosol optical depth(AOD) from AERONET ground observations at sites in Beijing,Xianghe,and Xinglong with different environmental backgrounds,MODIS C051 Dark Target(DT C051),C006 Dark Target(DT C006),C006 Deep Blue(DB C006),and C006 Deep Blue/Dark Target merged AOD products were compared and evaluated to understand their applicability in the Beijing-Tianjin-Hebei region.The main conclusions are as follows:(1) The comparison of the C051 and C006 algorithms shows that the accuracy of the AOD at the Beijing and Xianghe sites notably improved,while an improvement was not observed at the Xinglong site;the DB C006 AOD is closest to the AERONET AOD at the Beijing site and the DT C006 AOD is closest to the AERONET AOD at the Xianghe site;the combined C006 AOD is closest to the AERONET AOD at the Xinglong site.(2) The inversion error of the MODIS DT C006 at the Beijing site is caused by the improper selection of the aerosol model and surface reflectance;the inversion error of the MODIS DB C006 is mainly due to surface reflectance in spring and the aerosol model in winter.(3) Compared with the DT C051 AOD,the effective data coverage of the DT C006 is reduced,but that of DB C006 and the combined C006 increased;the combined C006 AOD data have the largest coverage.The results show that the application of the combined AOD product is best for the Beijing-Tianjin-Hebei region.
引文
[1]Ramachandran S.Aerosol optical depth and fine mode fraction variations deduced from Moderate Resolution Imaging Spectroradiometer(MODIS)over four urban areas in India[J].Journal of Geophysical Research,2007,112(D16):D16207,doi:10.1029/2007JD008500.
[2]刘玉杰,牛生杰,郑有飞.用CE-318太阳光度计资料研究银川地区气溶胶光学厚度特性[J].南京气象学院学报,2004,27(5):615-622.Liu Y J,Niu S J,Zheng Y F.Optical depth characteristics of Yinchuan atmospheric aerosols based on the CE-318 sun tracking spectrophotometer data[J].Journal of Nanjing Institute of Meteorology,2004,27(5):615-622.
[3]赵仕伟,高晓清.利用MODIS C6数据分析中国西北地区气溶胶光学厚度时空变化特征[J].环境科学,2017,38(7):2637-2646.Zhao S W,Gao X Q.Analysis of spatio-temporal distribution and variation characteristics of aerosol optical depth over the northwest of China by MODIS C6 product[J].Environmental Science,2017,38(7):2637-2646.
[4]林海峰,辛金元,张文煜,等.北京市近地层颗粒物浓度与气溶胶光学厚度相关性分析研究[J].环境科学,2013,34(3):826-834.Lin H F,Xin J Y,Zhang W Y,et al.Comparison of atmospheric particulate matter and aerosol optical depth in Beijing City[J].Environmental Science,2013,34(3):826-834.
[5]周春艳,柳钦火,唐勇,等.MODIS气溶胶C004、C005产品的对比分析及其在中国北方地区的适用性评价[J].遥感学报,2009,13(5):854-872.Zhou C Y,Liu Q H,Tang Y,et al.Comparison between MODISaerosol product C004 and C005 and evaluation of their applicability in the north of China[J].Journal of Remote Sensing,2009,13(5):854-872.
[6]Xin J Y,Wang L L,Wang Y S,et al.Trends in aerosol optical properties over the Bohai Rim in Northeast China from 2004 to2010[J].Atmospheric Environment,2011,45(35):6317-6325.
[7]Kaufman Y J,TanréD,Remer L A,et al.Operational remote sensing of tropospheric aerosol over land from EOS moderate resolution imaging spectroradiometer[J].Journal of Geophysical Research,1997,102(D14):17051-17067.
[8]Kaufman Y J,Wald A E,Remer L A,et al.The MODIS 2.1-μm channel-correlation with visible reflectance for use in remote sensing of aerosol[J].IEEE Transactions on Geoscience and Remote Sensing,1997,35(5):1286-1298.
[9]Papadimas C D,Hatzianastassiou N,Mihalopoulos N,et al.Assessment of the MODIS Collections C005 and C004 aerosol optical depth products over the Mediterranean basin[J].Atmospheric Chemistry and Physics,2009,9(9):2987-2999.
[10]Twohy C H,Coakley Jr J A,Tahnk W R.Effect of changes in relative humidity on aerosol scattering near clouds[J].Journal of Geophysical Research,2009,114(D5):D05205.
[11]Charlson R J,Ackerman A S,Bender F A M,et al.On the climate forcing consequences of the albedo continuum between cloudy and clear air[J].Tellus B:Chemical and Physical Meteorology,2007,59(4):715-727.
[12]Levy R C,Mattoo S,Munchak L A,et al.The collection 6MODIS aerosol products over land and ocean[J].Atmospheric Measurement Techniques,2013,6(11):2989-3034.
[13]朱于红.MODIS C006气溶胶产品评估及其在省域大气污染研究中的应用[D].杭州:浙江大学,2015.Zhu Y H.Evaluation of MODIS Aerosol product collection 006and its application to air pollution research in Zhejiang Province[D].Hangzhou:Zhejiang University,2015.
[14]Wang K,Sun X J,Zhou Y B,et al.Validation of MODIS-aqua aerosol products C051 and C006 over the Beijing-Tianjin-Hebei region[J].Atmosphere,2017,8(9):172.
[15]Wei J,Sun L.Comparison and evaluation of Different MODISaerosol optical depth products over the Beijing-Tianjin-Hebei region in China[J].IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2017,10(3):835-844.
[16]Bilal M,Nichol J E.Evaluation of MODIS aerosol retrieval algorithms over the Beijing-Tianjin-Hebei region during low to very high pollution events[J].Journal of Geophysical Research:Atmospheres,2015,120(15):7941-7957.
[17]Zhang Q,Xin J Y,Yin Y,et al.The variations and trends of MODIS C5&C6 products'errors in the recent decade over the background and urban areas of North China[J].Remote Sensing,2016,8(9):754.
[18]ngstr9m A.The parameters of atmospheric turbidity[J].Tellus,1964,16(1):64-75.
[19]孙晓雷,甘伟,林燕,等.MODIS 3 km气溶胶光学厚度产品检验及其环境空气质量指示[J].环境科学学报,2015,35(6):1657-1666.Sun X L,Gan W,Lin Y,et al.Validation of MODIS 3 km aerosol optical depth product and its air quality indication[J].Acta Scientiae Circumstantiae,2015,35(6):1657-1666.
[20]Levy R C,Remer L A,Kleidman R G,et al.Global evaluation of the Collection 5 MODIS dark-target aerosol products over land[J].Atmospheric Chemistry and Physics,2010,10(21):10399-10420.
[21]张西雅,扈海波.京津冀地区气溶胶时空分布及与城市化关系的研究[J].大气科学,2017,41(4):797-810.Zhang X Y,Hu H B.Spatio-temporal characteristics of aerosol optical depth and their relationship with urbanization over BeijingTianjin-Hebei region[J].Chinese Journal of Atmospheric Sciences,2017,41(4):797-810.
[22]Jang M,Czoschke N M,Lee S,et al.Heterogeneous atmospheric aerosol production by acid-catalyzed particle-phase reactions[J].Science,2002,298(5594):814-817.
[23]Claeys M,Graham B,Vas G,et al.Formation of secondary organic aerosols through photooxidation of isoprene[J].Science,2004,303(5661):1173-1176.
[24]Lim Y B,Tan Y,Perri M J,et al.Aqueous chemistry and its role in secondary organic aerosol(SOA)formation[J].Atmospheric Chemistry and Physics,2010,10(21):10521-10539.
[25]Ehn M,Thornton J A,Kleist E,et al.A large source of lowvolatility secondary organic aerosol[J].Nature,2014,506(7489):476-479.
[26]He Q S,Li C C,Geng F H,et al.Aerosol optical properties retrieved from Sun photometer measurements over Shanghai,China[J].Journal of Geophysical Research:Atmospheres,2012,117(D16):D16204,doi:10.1029/2011JD017220.
[27]李琦,银燕,顾雪松,等.南京夏季气溶胶吸湿增长因子和云凝结核的观测研究[J].中国环境科学,2015,35(2):337-346.Li Q,Yin Y,Gu X S,et al.An observational study of aerosol hygroscopic growth factor and cloud condensation nuclei in Nanjing in summer[J].China Environmental Science,2015,35(2):337-346.
[28]陈一娜,赵普生,何迪,等.北京地区大气消光特征及参数化研究[J].环境科学,2015,36(10):3582-3589.Chen Y N,Zhao P S,He D,et al.Characteristics and parameterization for atmospheric extinction coefficient in Beijing[J].Environmental Science,2015,36(10):3582-3589.
[29]刘浩,高小明,谢志英,等.京津冀晋鲁区域气溶胶光学厚度的时空特征[J].环境科学学报,2015,35(5):1506-1511.Liu H,Gao X M,Xie Z Y,et al.Spatio-temporal characteristics of aerosol optical depth over Beijing-Tianjin-Hebei-ShanxiShandong region during 2000-2013[J].Acta Scientiae Circumstantiae,2015,35(5):1506-1511.
[30]晏利斌,刘晓东.京津冀地区气溶胶季节变化及与云量的关系[J].环境科学研究,2009,22(8):924-931.Yan L B,Liu X D.Seasonal variation of atmospheric aerosol and its relation to cloud faction over Beijing-Tianjin-Hebei region[J].Research of Environmental Sciences,2009,22(8):924-931.
[31]Yu X N,LüR,Liu C,et al.Seasonal variation of columnar aerosol optical properties and radiative forcing over Beijing,China[J].Atmospheric Environment,2017,166:340-350.
[32]罗宇翔,陈娟,郑小波,等.近10年中国大陆MODIS遥感气溶胶光学厚度特征[J].生态环境学报,2012,21(5):876-883.Luo Y X,Chen J,Zheng X B,et al.Characteristics of aerosol optical depth over China from recent 10 years of MODIS remote sensing data[J].Ecology and Environmental Sciences,2012,21(5):876-883.
[2]刘玉杰,牛生杰,郑有飞.用CE-318太阳光度计资料研究银川地区气溶胶光学厚度特性[J].南京气象学院学报,2004,27(5):615-622.Liu Y J,Niu S J,Zheng Y F.Optical depth characteristics of Yinchuan atmospheric aerosols based on the CE-318 sun tracking spectrophotometer data[J].Journal of Nanjing Institute of Meteorology,2004,27(5):615-622.
[3]赵仕伟,高晓清.利用MODIS C6数据分析中国西北地区气溶胶光学厚度时空变化特征[J].环境科学,2017,38(7):2637-2646.Zhao S W,Gao X Q.Analysis of spatio-temporal distribution and variation characteristics of aerosol optical depth over the northwest of China by MODIS C6 product[J].Environmental Science,2017,38(7):2637-2646.
[4]林海峰,辛金元,张文煜,等.北京市近地层颗粒物浓度与气溶胶光学厚度相关性分析研究[J].环境科学,2013,34(3):826-834.Lin H F,Xin J Y,Zhang W Y,et al.Comparison of atmospheric particulate matter and aerosol optical depth in Beijing City[J].Environmental Science,2013,34(3):826-834.
[5]周春艳,柳钦火,唐勇,等.MODIS气溶胶C004、C005产品的对比分析及其在中国北方地区的适用性评价[J].遥感学报,2009,13(5):854-872.Zhou C Y,Liu Q H,Tang Y,et al.Comparison between MODISaerosol product C004 and C005 and evaluation of their applicability in the north of China[J].Journal of Remote Sensing,2009,13(5):854-872.
[6]Xin J Y,Wang L L,Wang Y S,et al.Trends in aerosol optical properties over the Bohai Rim in Northeast China from 2004 to2010[J].Atmospheric Environment,2011,45(35):6317-6325.
[7]Kaufman Y J,TanréD,Remer L A,et al.Operational remote sensing of tropospheric aerosol over land from EOS moderate resolution imaging spectroradiometer[J].Journal of Geophysical Research,1997,102(D14):17051-17067.
[8]Kaufman Y J,Wald A E,Remer L A,et al.The MODIS 2.1-μm channel-correlation with visible reflectance for use in remote sensing of aerosol[J].IEEE Transactions on Geoscience and Remote Sensing,1997,35(5):1286-1298.
[9]Papadimas C D,Hatzianastassiou N,Mihalopoulos N,et al.Assessment of the MODIS Collections C005 and C004 aerosol optical depth products over the Mediterranean basin[J].Atmospheric Chemistry and Physics,2009,9(9):2987-2999.
[10]Twohy C H,Coakley Jr J A,Tahnk W R.Effect of changes in relative humidity on aerosol scattering near clouds[J].Journal of Geophysical Research,2009,114(D5):D05205.
[11]Charlson R J,Ackerman A S,Bender F A M,et al.On the climate forcing consequences of the albedo continuum between cloudy and clear air[J].Tellus B:Chemical and Physical Meteorology,2007,59(4):715-727.
[12]Levy R C,Mattoo S,Munchak L A,et al.The collection 6MODIS aerosol products over land and ocean[J].Atmospheric Measurement Techniques,2013,6(11):2989-3034.
[13]朱于红.MODIS C006气溶胶产品评估及其在省域大气污染研究中的应用[D].杭州:浙江大学,2015.Zhu Y H.Evaluation of MODIS Aerosol product collection 006and its application to air pollution research in Zhejiang Province[D].Hangzhou:Zhejiang University,2015.
[14]Wang K,Sun X J,Zhou Y B,et al.Validation of MODIS-aqua aerosol products C051 and C006 over the Beijing-Tianjin-Hebei region[J].Atmosphere,2017,8(9):172.
[15]Wei J,Sun L.Comparison and evaluation of Different MODISaerosol optical depth products over the Beijing-Tianjin-Hebei region in China[J].IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2017,10(3):835-844.
[16]Bilal M,Nichol J E.Evaluation of MODIS aerosol retrieval algorithms over the Beijing-Tianjin-Hebei region during low to very high pollution events[J].Journal of Geophysical Research:Atmospheres,2015,120(15):7941-7957.
[17]Zhang Q,Xin J Y,Yin Y,et al.The variations and trends of MODIS C5&C6 products'errors in the recent decade over the background and urban areas of North China[J].Remote Sensing,2016,8(9):754.
[18]ngstr9m A.The parameters of atmospheric turbidity[J].Tellus,1964,16(1):64-75.
[19]孙晓雷,甘伟,林燕,等.MODIS 3 km气溶胶光学厚度产品检验及其环境空气质量指示[J].环境科学学报,2015,35(6):1657-1666.Sun X L,Gan W,Lin Y,et al.Validation of MODIS 3 km aerosol optical depth product and its air quality indication[J].Acta Scientiae Circumstantiae,2015,35(6):1657-1666.
[20]Levy R C,Remer L A,Kleidman R G,et al.Global evaluation of the Collection 5 MODIS dark-target aerosol products over land[J].Atmospheric Chemistry and Physics,2010,10(21):10399-10420.
[21]张西雅,扈海波.京津冀地区气溶胶时空分布及与城市化关系的研究[J].大气科学,2017,41(4):797-810.Zhang X Y,Hu H B.Spatio-temporal characteristics of aerosol optical depth and their relationship with urbanization over BeijingTianjin-Hebei region[J].Chinese Journal of Atmospheric Sciences,2017,41(4):797-810.
[22]Jang M,Czoschke N M,Lee S,et al.Heterogeneous atmospheric aerosol production by acid-catalyzed particle-phase reactions[J].Science,2002,298(5594):814-817.
[23]Claeys M,Graham B,Vas G,et al.Formation of secondary organic aerosols through photooxidation of isoprene[J].Science,2004,303(5661):1173-1176.
[24]Lim Y B,Tan Y,Perri M J,et al.Aqueous chemistry and its role in secondary organic aerosol(SOA)formation[J].Atmospheric Chemistry and Physics,2010,10(21):10521-10539.
[25]Ehn M,Thornton J A,Kleist E,et al.A large source of lowvolatility secondary organic aerosol[J].Nature,2014,506(7489):476-479.
[26]He Q S,Li C C,Geng F H,et al.Aerosol optical properties retrieved from Sun photometer measurements over Shanghai,China[J].Journal of Geophysical Research:Atmospheres,2012,117(D16):D16204,doi:10.1029/2011JD017220.
[27]李琦,银燕,顾雪松,等.南京夏季气溶胶吸湿增长因子和云凝结核的观测研究[J].中国环境科学,2015,35(2):337-346.Li Q,Yin Y,Gu X S,et al.An observational study of aerosol hygroscopic growth factor and cloud condensation nuclei in Nanjing in summer[J].China Environmental Science,2015,35(2):337-346.
[28]陈一娜,赵普生,何迪,等.北京地区大气消光特征及参数化研究[J].环境科学,2015,36(10):3582-3589.Chen Y N,Zhao P S,He D,et al.Characteristics and parameterization for atmospheric extinction coefficient in Beijing[J].Environmental Science,2015,36(10):3582-3589.
[29]刘浩,高小明,谢志英,等.京津冀晋鲁区域气溶胶光学厚度的时空特征[J].环境科学学报,2015,35(5):1506-1511.Liu H,Gao X M,Xie Z Y,et al.Spatio-temporal characteristics of aerosol optical depth over Beijing-Tianjin-Hebei-ShanxiShandong region during 2000-2013[J].Acta Scientiae Circumstantiae,2015,35(5):1506-1511.
[30]晏利斌,刘晓东.京津冀地区气溶胶季节变化及与云量的关系[J].环境科学研究,2009,22(8):924-931.Yan L B,Liu X D.Seasonal variation of atmospheric aerosol and its relation to cloud faction over Beijing-Tianjin-Hebei region[J].Research of Environmental Sciences,2009,22(8):924-931.
[31]Yu X N,LüR,Liu C,et al.Seasonal variation of columnar aerosol optical properties and radiative forcing over Beijing,China[J].Atmospheric Environment,2017,166:340-350.
[32]罗宇翔,陈娟,郑小波,等.近10年中国大陆MODIS遥感气溶胶光学厚度特征[J].生态环境学报,2012,21(5):876-883.Luo Y X,Chen J,Zheng X B,et al.Characteristics of aerosol optical depth over China from recent 10 years of MODIS remote sensing data[J].Ecology and Environmental Sciences,2012,21(5):876-883.