干旱区生态环境知识资源中心(Arid): Evaluation of MERRA-2 Aerosol Optical and Component Properties over China Using SONET and PARASOL/GRASP Data

Arid

DOI	10.3390/rs14040821
	Evaluation of MERRA-2 Aerosol Optical and Component Properties over China Using SONET and PARASOL/GRASP Data
	Ou, Yang; Li, Zhengqiang; Chen, Cheng; Zhang, Ying; Li, Kaitao; Shi, Zheng; Dong, Jiantao; Xu, Hua; Peng, Zongren; Xie, Yisong; Luo, Jie
通讯作者	Li, ZQ (corresponding author)，Chinese Acad Sci, Aerosp Informat Res Inst, State Environm Protect Key Lab Satellite Remote S, Beijing 100101, Peoples R China. ; Li, ZQ (corresponding author)，Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:4
英文摘要	The Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) is widely used as an advanced model dataset for the understanding of global climate change. However, independent validation and comparison of MERRA-2 are both insufficient and always desired. Therefore, in this study, the quantitative evaluation of MERRA-2 aerosol products was conducted over China for Aerosol Optical Depth (AOD), Angstrom exponent (AE), absorbing AOD (AAOD) and chemical components (black carbon (BC) and dust (DU)) using Sun sky radiometer Observation NETwork (SONET) ground-based measurements and POLDER-3/PARASOL satellite products generated by the GRASP algorithm. The available MERRA-2 monthly dataset and PARASOL/GRASP monthly and seasonal products were intercompared over China. MERRA-2 AOD (550 nm) show general good agreement with SONET and PARASOL/GRASP. For example, the correlation coefficients are usually 0.6-0.85 with SONET and 0.75-0.85 with PARASOL/GRASP, the bias is usually -0.293 to +0.008 with SONET. For AE and AAOD, the agreement is still reasonable. MERRA-2 is found to overestimate fine mode AE and to display a general underestimation of aerosol absorption over China. In addition, MERRA-2 BC and DU mass concentrations show spatial and quantitative consistency with PARASOL/GRASP components climatological products. The relatively high columnar BC mass concentration is observed around 1.5-2 mg/m(3) over the East China industrial region and high DU mass concentration is around 150 mg/m(3) near Taklimakan desert. MERRA-2 shows slightly higher BC and lower DU concentration than PARASOL/GRASP over East China. The evaluations with in situ BC measurements near surface verify the overestimation (MAE = +0.44 mu g/m(2)) of MERRA-2 and underestimation (MAE = -0.38 mu g/m(2)) of PARASOL/GRASP. The analysis demonstrates multi-source datasets, such as ground-based, space-borne remote sensing, in situ measurements, model simulation as well as reanalysis data, complement each other and can be used to refine aerosol characterization.
英文关键词	MERRA-2 SONET PARASOL GRASP aerosol components aerosol optical properties
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:000763144200001
WOS关键词	SATELLITE ; RETRIEVAL ; ALGORITHM ; VARIABILITY ; POLLUTION ; MISSION ; CARBON ; MODEL ; MODIS ; XIAN
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
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376388
作者单位	[Ou, Yang; Li, Zhengqiang; Zhang, Ying; Shi, Zheng; Dong, Jiantao; Xu, Hua; Peng, Zongren; Xie, Yisong; Luo, Jie] Chinese Acad Sci, Aerosp Informat Res Inst, State Environm Protect Key Lab Satellite Remote S, Beijing 100101, Peoples R China; [Ou, Yang; Li, Zhengqiang; Zhang, Ying; Shi, Zheng; Xu, Hua] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Chen, Cheng] Univ Lille, GRASP SAS, Remote Sensing Developments, Cite Scientif, F-59655 Villeneuve Dascq, France
推荐引用方式 GB/T 7714	Ou, Yang,Li, Zhengqiang,Chen, Cheng,et al. Evaluation of MERRA-2 Aerosol Optical and Component Properties over China Using SONET and PARASOL/GRASP Data[J],2022,14(4).
APA	Ou, Yang.,Li, Zhengqiang.,Chen, Cheng.,Zhang, Ying.,Li, Kaitao.,...&Luo, Jie.(2022).Evaluation of MERRA-2 Aerosol Optical and Component Properties over China Using SONET and PARASOL/GRASP Data.REMOTE SENSING,14(4).
MLA	Ou, Yang,et al."Evaluation of MERRA-2 Aerosol Optical and Component Properties over China Using SONET and PARASOL/GRASP Data".REMOTE SENSING 14.4(2022).