干旱区生态环境知识资源中心(Arid): Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation

Arid

DOI	10.3390/rs12183014
	Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation
	Song, Zigeng; He, Xianqiang; Bai, Yan; Wang, Difeng; Hao, Zengzhou; Gong, Fang; Zhu, Qiankun
通讯作者	He, XQ
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:18
英文摘要	Knowledge of the vertical distribution of absorbing aerosols is crucial for radiative forcing assessment, and its quasi real-time prediction is one of the keys for the atmospheric correction of satellite remote sensing. In this study, we investigated the seasonal and interannual changes of the vertical distribution of global absorbing aerosols based on satellite measurement from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) and proposed a neural network (NN) model to predict the vertical distribution of global absorbing aerosols. Gaussian fitting was proposed to derive the maximum fitted particle number concentration (MFNC), altitude corresponding to MFNC (MFA), and standard deviation (MFASD) for vertical distribution of dust and smoke aerosols. Results showed that higher MFA values of dust and smoke aerosols mainly occurred over deserts and tropical savannas, respectively. For dust aerosol, the MFA is mainly observed at 0.5 to 6 km above deserts, and low MFNC values occur in boreal spring and winter while high values in summer and autumn. The MFA of smoke is systematically lower than that of dust, ranging from 0.5 to 3.5 km over tropical rainforest and grassland. Moreover, we found that the MFA of global dust and smoke had decreased by 2.7 m yr(-1)(statistical significancep= 0.02) and 1.7 m yr(-1)(p= 0.02) over 2007-2016, respectively. The MFNC of global dust has increased by 0.63 cm(-3)yr(-1)(p= 0.05), whereas that of smoke has decreased by 0.12 cm(-3)yr(-1)(p= 0.05). In addition, the determination coefficient (R-2) of the established prediction models for vertical distributions of absorbing aerosols were larger than 0.76 with root mean square error (RMSE) less than 1.42 cm(-3), which should be helpful for the radiative forcing evaluation and atmospheric correction of satellite remote sensing.
英文关键词	absorbing aerosol vertical distribution long-term change prediction model CALIPSO
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000580847000001
WOS关键词	OCEAN COLOR IMAGERY ; OPTICAL DEPTH ; ATMOSPHERIC CORRECTION ; SATELLITE DATA ; DESERT DUST ; HEIGHTS ; TRENDS ; SMOKE ; ASIA ; AOD
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327001
作者单位	[Song, Zigeng; He, Xianqiang; Bai, Yan] Hohai Univ, Coll Oceanog, Nanjing 210098, Peoples R China; [Song, Zigeng; He, Xianqiang; Bai, Yan; Wang, Difeng; Hao, Zengzhou; Gong, Fang; Zhu, Qiankun] Minist Nat Resources, State Key Lab Satellite Ocean Environm Dynam, Inst Oceanog 2, Hangzhou 310012, Peoples R China; [He, Xianqiang; Bai, Yan] Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 510000, Peoples R China; [He, Xianqiang; Bai, Yan] Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Song, Zigeng,He, Xianqiang,Bai, Yan,et al. Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation[J]. 河海大学,2020,12(18).
APA	Song, Zigeng.,He, Xianqiang.,Bai, Yan.,Wang, Difeng.,Hao, Zengzhou.,...&Zhu, Qiankun.(2020).Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation.REMOTE SENSING,12(18).
MLA	Song, Zigeng,et al."Changes and Predictions of Vertical Distributions of Global Light-Absorbing Aerosols Based on CALIPSO Observation".REMOTE SENSING 12.18(2020).