气候变化领域集成服务门户(CCPortal): Toward a Better Surface Radiation Budget Analysis Over Sea Ice in the High Arctic Ocean: A Comparative Study Between Satellite, Reanalysis, and local-scale Observations

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DOI	10.1029/2020JD032555
	Toward a Better Surface Radiation Budget Analysis Over Sea Ice in the High Arctic Ocean: A Comparative Study Between Satellite, Reanalysis, and local-scale Observations
	Di Biagio C.; Pelon J.; Blanchard Y.; Loyer L.; Hudson S.R.; Walden V.P.; Raut J.C.; Kato S.; Mariage V.; Granskog M.A.
发表日期	2021
ISSN	2169897X
卷号	126 期号:4
英文摘要	Reanalysis datasets from atmospheric models and satellite products are often used for Arctic surface shortwave (SW) and longwave (LW) radiative budget analyses, but they suffer from limitations and require validation against local-scale observations. These are rare in the high Arctic, especially for longer periods that include seasonal transitions. In this study, radiation and meteorological observations acquired during the Norwegian Young Sea Ice Cruise (N-ICE2015) campaign over sea ice north of Svalbard (80–83°N, 5–25°E) from January–June 2015, cloud lidar observations from the Ice-Atmosphere-Ocean Observing System and the Cloud and Aerosol Lidar with Orthogonal Polarization are compared to daily and monthly satellite retrievals from the Clouds and the Earth's Radiant Energy System (CERES) and ERA-Interim and ERA5 reanalysis. Results indicate that surface temperature is a significant driver for winter LW radiation biases in both satellite and reanalysis data, along with cloud optical depth in CERES. In May, the SW and LW downwelling irradiances are close to observations and cloud properties are well captured (except for ERA-Interim), while SW upward irradiances are biased low due to surface albedo biases in all datasets. Net SW and LW radiation biases are comparable (∼20–30 Wm−2) but opposite in sign for ERA-Interim and CERES in May, which allows for error compensation. Biases reduce to ±10 Wm−2 in ERA5. In June downward LW remains biased low (8–10 Wm−2) in all datasets suggesting unsettled cloud representation issues. Surface albedo always differs by more than 0.1 between datasets, leading to significant SW and total flux differences. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	clouds; high Arctic Ocean; radiation; reanalysis; satellite data; sea ice; surface albedo; temperature
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185477
作者单位	LISA, UMR CNRS 7583, Université Paris-Est-Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France; LATMOS/IPSL, Sorbonne Université, Université Versailles Saint Quentin, CNRS, Paris, France; Centre pour l’Étude et la Simulation Du Climat à l’Échelle Régionale (ESCER), Université Du Québec à Montréal, Montréal, QC, Canada; Norwegian Polar Institute, Fram Centre, Tromsø, Norway; Department of Civil and Environmental Engineering, Washington State University, Pullman, WA, United States; NASA Langley Research Center, Hampton, VA, United States
推荐引用方式 GB/T 7714	Di Biagio C.,Pelon J.,Blanchard Y.,et al. Toward a Better Surface Radiation Budget Analysis Over Sea Ice in the High Arctic Ocean: A Comparative Study Between Satellite, Reanalysis, and local-scale Observations[J],2021,126(4).
APA	Di Biagio C..,Pelon J..,Blanchard Y..,Loyer L..,Hudson S.R..,...&Granskog M.A..(2021).Toward a Better Surface Radiation Budget Analysis Over Sea Ice in the High Arctic Ocean: A Comparative Study Between Satellite, Reanalysis, and local-scale Observations.Journal of Geophysical Research: Atmospheres,126(4).
MLA	Di Biagio C.,et al."Toward a Better Surface Radiation Budget Analysis Over Sea Ice in the High Arctic Ocean: A Comparative Study Between Satellite, Reanalysis, and local-scale Observations".Journal of Geophysical Research: Atmospheres 126.4(2021).