Surface Diffuse Solar Radiation Determined by Reanalysis and Satellite over East Asia: Evaluation and Comparison

doi:10.3390/rs12091387

	Surface Diffuse Solar Radiation Determined by Reanalysis and Satellite over East Asia: Evaluation and Comparison
	Jiang, Hou 3,4; Yang, Yaping 1,3; Wang, Hongzhi 2; Bai, Yongqing 3,4; Bai, Yan 1,3
刊名	REMOTE SENSING
	2020-05-01
卷号	12 期号:9 页码:19
关键词	surface diffuse solar radiation temporal trend spatial pattern atmospheric factor
DOI	10.3390/rs12091387
通讯作者	Yang, Yaping(yangyp@igsnrr.ac.cn)
英文摘要	Recently, surface diffuse solar radiation (R-dif) has been attracting a growing interest in view of its function in improving plant productivity, thus promoting global carbon uptake, and its impacts on solar energy utilization. To date, very few radiation products provide estimates of R-dif, and systematic validation and evaluation are even more scare. In this study, R-dif estimates from Reanalysis Fifth Generation (ERA5) of European Center for Medium-Range Weather Forecasts and satellite-based retrieval (called JiEA) are evaluated over East Asia using ground measurements at 39 stations from World Radiation Data Center (WRDC) and China Meteorological Administration (CMA). The results show that JiEA agrees well with measurements, while ERA5 underestimates R-dif significantly. Both datasets perform better at monthly mean scale than at daily mean and hourly scale. The mean bias error and root-mean-square error of daily mean estimates are -1.21 W/m(2) and 20.06 W/m(2) for JiEA and -17.18 W/m(2) and 32.42 W/m(2) for ERA5, respectively. Regardless of over- or underestimation, correlations of estimated time series of ERA5 and JiEA show high similarity. JiEA reveals a slight decreasing trend at regional scale, but ERA5 shows no significant trend, and neither of them reproduces temporal variability of ground measurements. Data accuracy of ERA5 is more robust than JiEA in time but less in space. Latitudinal dependency is noted for ERA5 while not for JiEA. In addition, spatial distributions of R-dif from ERA5 and JiEA show pronounced discrepancy. Neglect of adjacency effects caused by horizontal photon transport is the main cause for R-dif underestimation of ERA5. Spatial analysis calls for improvements to the representation of clouds, aerosols and water vapor for reproducing fine spatial distribution and seasonal variations of R-dif.
资助项目	Strategic Priority Research Program (A) of the Chinese Academy of Sciences[XDA19020304] ; Branch Center Project of Geography, Resources and Ecology of Knowledge Center for Chinese Engineering Sciences and Technology[CKCEST-2019-1-4] ; National Earth System Science Data Sharing Infrastructure[2005DKA32300] ; Multidisciplinary Joint Expedition for China-Mongolia-Russia Economic Corridor[2017FY101300]
WOS关键词	PHOTOSYNTHETICALLY ACTIVE RADIATION ; INCIDENT SHORTWAVE RADIATION ; AQUA MODIS ICE ; COLLECTION 6 ; CROP YIELD ; OPTICAL-PROPERTIES ; USE EFFICIENCY ; PRODUCTS ; RESOLUTION ; VALIDATION
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000543394000034
资助机构	Strategic Priority Research Program (A) of the Chinese Academy of Sciences ; Branch Center Project of Geography, Resources and Ecology of Knowledge Center for Chinese Engineering Sciences and Technology ; National Earth System Science Data Sharing Infrastructure ; Multidisciplinary Joint Expedition for China-Mongolia-Russia Economic Corridor
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162382]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Yaping
作者单位	1.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China 2.Henan Univ, Coll Environm & Planning, Kaifeng 475004, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Hou,Yang, Yaping,Wang, Hongzhi,et al. Surface Diffuse Solar Radiation Determined by Reanalysis and Satellite over East Asia: Evaluation and Comparison[J]. REMOTE SENSING,2020,12(9):19.
APA	Jiang, Hou,Yang, Yaping,Wang, Hongzhi,Bai, Yongqing,&Bai, Yan.(2020).Surface Diffuse Solar Radiation Determined by Reanalysis and Satellite over East Asia: Evaluation and Comparison.REMOTE SENSING,12(9),19.
MLA	Jiang, Hou,et al."Surface Diffuse Solar Radiation Determined by Reanalysis and Satellite over East Asia: Evaluation and Comparison".REMOTE SENSING 12.9(2020):19.