气候变化领域集成服务门户(CCPortal): Drivers of atmospheric and oceanic surface temperature variance: A frequency domain approach

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DOI	10.1175/JCLI-D-20-0557.1
	Drivers of atmospheric and oceanic surface temperature variance: A frequency domain approach
	Martin P.E.; Arbic B.K.; Hogg A.M.C.C.
发表日期	2021
ISSN	08948755
起始页码	3975
结束页码	3990
卷号	34 期号:10
英文摘要	Ocean–atmosphere coupling modifies the variability of Earth’s climate over a wide range of time scales. However, attribution of the processes that generate this variability remains an outstanding problem. In this article, air–sea coupling is investigated in an eddy-resolving, medium-complexity, idealized ocean–atmosphere model. The model is run in three configurations: fully coupled, partially coupled (where the effect of the ocean geostrophic velocity on the sea surface temperature field is minimal), and atmosphere-only. A surface boundary layer temperature variance budget analysis computed in the frequency domain is shown to be a powerful tool for studying air–sea interactions, as it differentiates the relative contributions to the variability in the temperature field from each process across a range of time scales (from daily to multidecadal). This method compares terms in the ocean and atmosphere across the different model configurations to infer the underlying mechanisms driving temperature variability. Horizontal advection plays a dominant role in driving temperature variance in both the ocean and the atmosphere, particularly at time scales shorter than annual. At longer time scales, the temperature variance is dominated by strong coupling between atmosphere and ocean. Furthermore, the Ekman transport contribution to the ocean’s horizontal advection is found to underlie the low-frequency behavior in the atmosphere. The ocean geostrophic eddy field is an important driver of ocean variability across all frequencies and is reflected in the atmospheric variability in the western boundary current separation region at longer time scales. Ó 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy
英文关键词	Air-sea interaction; Climate variability; Fourier analysis; Heat budgets/fluxes; Quasigeostrophic models; Surface temperature
语种	英语
scopus关键词	Advection; Boundary layer flow; Boundary layers; Budget control; Frequency domain analysis; Oceanography; Surface properties; Surface waters; Time measurement; American meteorological societies; Atmospheric variability; Copyright informations; Frequency domain approaches; Oceanic surface temperature; Sea surface temperature (SST); Temperature variability; Western boundary currents; Atmospheric temperature
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/178581
作者单位	Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States; Research School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, Australian National University, Canberra, ACT, Australia
推荐引用方式 GB/T 7714	Martin P.E.,Arbic B.K.,Hogg A.M.C.C.. Drivers of atmospheric and oceanic surface temperature variance: A frequency domain approach[J],2021,34(10).
APA	Martin P.E.,Arbic B.K.,&Hogg A.M.C.C..(2021).Drivers of atmospheric and oceanic surface temperature variance: A frequency domain approach.Journal of Climate,34(10).
MLA	Martin P.E.,et al."Drivers of atmospheric and oceanic surface temperature variance: A frequency domain approach".Journal of Climate 34.10(2021).