气候变化领域集成服务门户(CCPortal): Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?

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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, Wenjun; Qin, Jun; Yang, Kun; Zhu, Fuxin; Zhou, Xu
通讯作者	Tang, WJ (通讯作者)
发表日期	2021
ISSN	0169-8095
EISSN	1873-2895
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.
关键词	GENERAL-CIRCULATION MODELS FLUX VALIDATION PARAMETERIZATION
英文关键词	Longwave radiation; ERA5; CERES; Accuracy; Evaluation
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000656833100007
来源期刊	ATMOSPHERIC RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260141
推荐引用方式 GB/T 7714	Tang, Wenjun,Qin, Jun,Yang, Kun,et al. Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?[J]. 中国科学院青藏高原研究所,2021,252.
APA	Tang, Wenjun,Qin, Jun,Yang, Kun,Zhu, Fuxin,&Zhou, Xu.(2021).Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?.ATMOSPHERIC RESEARCH,252.
MLA	Tang, Wenjun,et al."Does ERA5 outperform satellite products in estimating atmospheric downward longwave radiation at the surface?".ATMOSPHERIC RESEARCH 252(2021).