气候变化领域集成服务门户(CCPortal): Interannual Variability of the South Atlantic Ocean Heat Content in a High-Resolution Versus a Low-Resolution General Circulation Model

CCPortal

DOI	10.1029/2020GL089908
	Interannual Variability of the South Atlantic Ocean Heat Content in a High-Resolution Versus a Low-Resolution General Circulation Model
	Gronholz A.; Dong S.; Lopez H.; Lee S.-K.; Goni G.; Baringer M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	High- and low-resolution coupled climate model simulations are analyzed to investigate the impact of model resolution on South Atlantic Ocean Heat Content (OHC) variability at interannual time scale and the associated physical mechanisms. In both models, ocean heat transport convergence is the main driver of OHC variability on interannual time scales. However, the origin of the meridional heat transport (MHT) convergence anomalies differs in the two models. In the high-resolution model, OHC variability is dominated by MHT from the south. This is in contrast to the low-resolution model, where OHC variability is largely controlled by MHT from the north. In the low-resolution simulation, both the Ekman and geostrophic transports contribute to the OHC variability, whereas in the high-resolution model, the geostrophic transport dominates. These differences highlight the importance of model resolution to appropriately represent ocean dynamics in the South Atlantic Ocean and associated impacts on regional and global climate. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Enthalpy; Heat transfer; Oceanography; Coupled climate model; General circulation model; Geostrophic transport; High-resolution models; Interannual time scale; Interannual variability; Meridional heat transports; Ocean heat transport; Climate models; air-sea interaction; annual variation; climate modeling; convergence; Ekman transport; geostrophic flow; heat transfer; temperature anomaly; time series analysis; Atlantic Ocean; Atlantic Ocean (South)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169349
作者单位	Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, United States; NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States; Max Planck Institute for Meteorology, Hamburg, Germany
推荐引用方式 GB/T 7714	Gronholz A.,Dong S.,Lopez H.,et al. Interannual Variability of the South Atlantic Ocean Heat Content in a High-Resolution Versus a Low-Resolution General Circulation Model[J],2020,47(23).
APA	Gronholz A.,Dong S.,Lopez H.,Lee S.-K.,Goni G.,&Baringer M..(2020).Interannual Variability of the South Atlantic Ocean Heat Content in a High-Resolution Versus a Low-Resolution General Circulation Model.Geophysical Research Letters,47(23).
MLA	Gronholz A.,et al."Interannual Variability of the South Atlantic Ocean Heat Content in a High-Resolution Versus a Low-Resolution General Circulation Model".Geophysical Research Letters 47.23(2020).