气候变化领域集成服务门户(CCPortal): The Contribution of Surface and Submesoscale Processes to Turbulence in the Open Ocean Surface Boundary Layer

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DOI	10.1029/2019MS001801
	The Contribution of Surface and Submesoscale Processes to Turbulence in the Open Ocean Surface Boundary Layer
	Buckingham C.E.; Lucas N.S.; Belcher S.E.; Rippeth T.P.; Grant A.L.M.; Le Sommer J.; Ajayi A.O.; Naveira Garabato A.C.
发表日期	2019
ISSN	19422466
起始页码	4066
结束页码	4094
卷号	11 期号:12
英文摘要	The ocean surface boundary layer is a critical interface across which momentum, heat, and trace gases are exchanged between the oceans and atmosphere. Surface processes (winds, waves, and buoyancy forcing) are known to contribute significantly to fluxes within this layer. Recently, studies have suggested that submesoscale processes, which occur at small scales (0.1–10 km, hours to days) and therefore are not yet represented in most ocean models, may play critical roles in these turbulent exchanges. While observational support for such phenomena has been demonstrated in the vicinity of strong current systems and littoral regions, relatively few observations exist in the open-ocean environment to warrant representation in Earth system models. We use novel observations and simulations to quantify the contributions of surface and submesoscale processes to turbulent kinetic energy (TKE) dissipation in the open-ocean surface boundary layer. Our observations are derived from moorings in the North Atlantic, December 2012 to April 2013, and are complemented by atmospheric reanalysis. We develop a conceptual framework for dissipation rates due to surface and submesoscale processes. Using this framework and comparing with observed dissipation rates, we find that surface processes dominate TKE dissipation. A parameterization for symmetric instability is consistent with this result. We next employ simulations from an ocean front-resolving model to reestablish that dissipation due to surface processes exceeds that of submesoscale processes by 1–2 orders of magnitude. Together, these results suggest submesoscale processes do not dramatically modify vertical TKE budgets, though such dynamics may be climatically important owing to their ability to remove energy from the ocean. ©2019. The Authors.
英文关键词	dissipation; mixing; parameterization; submesoscale; surface; turbulence
语种	英语
scopus关键词	Boundary layer flow; Boundary layers; Budget control; Energy dissipation; Kinetic energy; Kinetics; Mixing; Oceanography; Parameterization; Surfaces; Turbulence; Atmospheric reanalysis; Conceptual frameworks; Critical interfaces; Earth system model; Orders of magnitude; submesoscale; Symmetric instabilities; Turbulent kinetic energy; Atmospheric thermodynamics; boundary layer; buoyancy forcing; conceptual framework; dissipation; mesoscale meteorology; mixing; numerical model; open ocean; parameterization; quantitative analysis; simulation; turbulence; Atlantic Ocean; Atlantic Ocean (North)
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156813
作者单位	British Antarctic Survey, Cambridge, United Kingdom; School of Ocean Sciences, Bangor University, Bangor, United Kingdom; Met Office, Exeter, United Kingdom; Department of Meteorology, University of Reading, Reading, United Kingdom; University of Grenoble Alpes/CNRS/IRD/G-INP, IGE, Grenoble, France; Ocean and Earth Science, University of Southampton, Southampton, United Kingdom
推荐引用方式 GB/T 7714	Buckingham C.E.,Lucas N.S.,Belcher S.E.,et al. The Contribution of Surface and Submesoscale Processes to Turbulence in the Open Ocean Surface Boundary Layer[J],2019,11(12).
APA	Buckingham C.E..,Lucas N.S..,Belcher S.E..,Rippeth T.P..,Grant A.L.M..,...&Naveira Garabato A.C..(2019).The Contribution of Surface and Submesoscale Processes to Turbulence in the Open Ocean Surface Boundary Layer.Journal of Advances in Modeling Earth Systems,11(12).
MLA	Buckingham C.E.,et al."The Contribution of Surface and Submesoscale Processes to Turbulence in the Open Ocean Surface Boundary Layer".Journal of Advances in Modeling Earth Systems 11.12(2019).