气候变化领域集成服务门户(CCPortal): Uncertainty in net surface heat flux due to differences in commonly used albedo products

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DOI	10.1175/JCLI-D-18-0448.1
	Uncertainty in net surface heat flux due to differences in commonly used albedo products
	Hogikyan A.; Cronin M.F.; Zhang D.; Kato S.
发表日期	2020
ISSN	0894-8755
起始页码	303
结束页码	315
卷号	33 期号:1
英文摘要	The ocean surface albedo is responsible for the distribution of solar (shortwave) radiant energy between the atmosphere and ocean and therefore is a key parameter in Earth's surface energy budget. In situ ocean observations typically do not measure upward reflected solar radiation, which is necessary to compute net solar radiation into the ocean. Instead, the upward component is computed from the measured downward component using an albedo estimate. At two NOAA Ocean Climate Station buoy sites in the North Pacific, the International Satellite Cloud Climatology Project (ISCCP) monthly climatological albedo has been used, while for the NOAA Global Tropical Buoy Array a constant albedo is used. This constant albedo is also used in the Coupled Ocean-Atmosphere Response Experiment (COARE) bulk flux algorithm. This study considers the impacts of using the more recently available NASA Cloud and the Earth's Radiant Energy System (CERES) albedo product for these ocean surface heat flux products. Differences between albedo estimates in global satellite products like these imply uncertainty in the net surface solar radiation heat flux estimates that locally exceed the target uncertainty of 1.0 W m22 for the global mean, set by the Global Climate Observing System (GCOS) of the World Meteorological Organization (WMO). Albedo has large spatiotemporal variability on hourly, monthly, and interannual time scales. Biases in high-resolution SWnet (the difference between surface downwelling and upwelling shortwave radiation) can arise if the albedo diurnal cycle is unresolved. As a result, for periods when satellite albedo data are not available it is recommended that an hourly climatology be used when computing high-resolution net surface shortwave radiation. © 2019 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Budget control; Climatology; Earth atmosphere; NASA; Oceanography; Satellites; Solar radiation; Uncertainty analysis; Coupled ocean-atmosphere response experiments; Earth's radiant energy systems; Global climate observing systems; International satellite cloud climatology projects; Ocean-surface heat flux; Spatiotemporal variability; Surface solar radiation; World meteorological organizations; Heat flux; albedo; algorithm; heat flux; NOAA satellite; resolution; shortwave radiation; solar radiation; spatiotemporal analysis; uncertainty analysis
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171555
作者单位	Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States; Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States; NASA Langley Research Center, Hampton, VA, United States; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Hogikyan A.,Cronin M.F.,Zhang D.,et al. Uncertainty in net surface heat flux due to differences in commonly used albedo products[J],2020,33(1).
APA	Hogikyan A.,Cronin M.F.,Zhang D.,&Kato S..(2020).Uncertainty in net surface heat flux due to differences in commonly used albedo products.Journal of Climate,33(1).
MLA	Hogikyan A.,et al."Uncertainty in net surface heat flux due to differences in commonly used albedo products".Journal of Climate 33.1(2020).