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DOI	10.1016/j.atmosres.2021.105453
	Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?
	Tang W.; Qin J.; Yang K.; Zhu F.; Zhou X.
发表日期	2021
ISSN	0169-8095
卷号	252
英文摘要	Atmospheric downward longwave radiation (DLR) is a key component of the surface energy budget in the Earth system. Satellite retrievals and atmospheric reanalysis estimates are the two typical approaches to obtaining a spatio-temporally continuous DLR product. In this study, we evaluated the DLR product from the latest ERA5 atmospheric reanalysis and the well-known Clouds and Earth's Radiant Energy System (CERES) satellite retrievals, against high-quality observations collected at 46 Baseline Surface Radiation Network (BSRN) stations over land surfaces and at 9 Global Tropical Moored Buoy Array (GTMBA) buoy stations. The accuracy of the ERA5 DLR product over land was found to be higher on average than that of CERES at hourly to monthly time scales. Conversely, ERA5 performed slightly worse than CERES-SYN when estimating DLR over the ocean surface. This is the first time that atmospheric reanalysis has performed better than satellite retrievals in estimating DLR over the land surface, demonstrating the potentially extensive application prospects for ERA5 as well as setting new challenges for quantitative remote sensing research. © 2021 Elsevier B.V.
英文关键词	Accuracy; CERES; ERA5; Evaluation; Longwave radiation
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236877
作者单位	National Tibetan Plateau Data Center, Key Laboratory of Tibetan Environmental Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, 100101, China; Department of Earth System Science, Tsinghua University, Beijing, 100084, China
推荐引用方式 GB/T 7714	Tang W.,Qin J.,Yang K.,et al. Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?[J],2021,252.
APA	Tang W.,Qin J.,Yang K.,Zhu F.,&Zhou X..(2021).Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?.Atmospheric Research,252.
MLA	Tang W.,et al."Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?".Atmospheric Research 252(2021).