气候变化领域集成服务门户(CCPortal): Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results From Mesoscale to Internal Wave Frequencies

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DOI	10.1029/2019JC015306
	Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results From Mesoscale to Internal Wave Frequencies
	Luecke C.A.; Arbic B.K.; Richman J.G.; Shriver J.F.; Alford M.H.; Ansong J.K.; Bassette S.L.; Buijsman M.C.; Menemenlis D.; Scott R.B.; Timko P.G.; Voet G.; Wallcraft A.J.; Zamudio L.
发表日期	2020
ISSN	21699275
卷号	125 期号:5
英文摘要	Temperature variance and kinetic energy (KE) from two global simulations of the HYbrid Coordinate Ocean Model (HYCOM; 1/12° and 1/25°) and three global simulations of the Massachusetts Institute of Technology general circulation model (MITgcm; 1/12°, 1/24°, and 1/48°), all of which are forced by atmospheric fields and the astronomical tidal potential, are compared with temperature variance and KE from a database of about 2,000 moored historical observations (MHOs). The variances are computed across frequencies ranging from supertidal, dominated by the internal gravity wave continuum, to subtidal, dominated by currents and mesoscale eddies. The most important qualitative difference between HYCOM and MITgcm, and between simulations of different resolutions, is in the supertidal band, where the 1/48° MITgcm lies closest to observations. Across all frequency bands examined, the HYCOM simulations display higher spatial correlation with the MHO than do the MITgcm simulations. The supertidal, semidiurnal, and diurnal velocities in the HYCOM simulations also compare more closely with observations than do the MITgcm simulations in a number of specific continental margin/marginal sea regions. To complement the model-MHO comparisons, this paper also compares the surface ocean geostrophic eddy KE in HYCOM, MITgcm, and a gridded satellite altimeter product. Consistent with the model-MHO comparisons, the HYCOM simulations have a higher spatial correlation with the altimeter product than the MITgcm simulations do. On the other hand, the surface ocean geostrophic eddy KE is too large, relative to the altimeter product, in the HYCOM simulations. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	embedded tides; internal gravity waves; kinetic energy; model resolution; model-data comparison; temperature variance
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186900
作者单位	Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, United States; Oceanographic Division, Naval Research Laboratory, Stennis Space Center, Hancock County, MS, United States; Department of Mathematics, University of Ghana, Accra, Ghana; Department of Physics, University of Michigan, Ann Arbor, MI, United States; Department of Marine Sciences, University of Southern Mississippi, Stennis Space Center, Hancock County, MS, United States; Earth Sciences Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Univ Brest, UMR CNRS 6205, Laboratoire de Mathématiques de Bretagne Atlantique, Brest, France
推荐引用方式 GB/T 7714	Luecke C.A.,Arbic B.K.,Richman J.G.,et al. Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results From Mesoscale to Internal Wave Frequencies[J],2020,125(5).
APA	Luecke C.A..,Arbic B.K..,Richman J.G..,Shriver J.F..,Alford M.H..,...&Zamudio L..(2020).Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results From Mesoscale to Internal Wave Frequencies.Journal of Geophysical Research: Oceans,125(5).
MLA	Luecke C.A.,et al."Statistical Comparisons of Temperature Variance and Kinetic Energy in Global Ocean Models and Observations: Results From Mesoscale to Internal Wave Frequencies".Journal of Geophysical Research: Oceans 125.5(2020).