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RISEddy Mixing of Potential Vorticity versus Thickness in an Isopycnic Ocean Model
Publisher: American Meteorological Society
Abstract: Parameterizations of the eddy-induced velocity that advects tracers in addition to the Eulerian mean flow are traditionally expressed as a downgradient Fickian diffusion of either isopycnal layer thickness or large-scale ...
Extratropical Atmospheric Response to Equatorial Atlantic Cold Tongue Anomalies
Publisher: American Meteorological Society
Abstract: The extratropical atmospheric response to the equatorial cold tongue mode in the Atlantic Ocean has been investigated with the coupled ocean?atmosphere model, Speedy Ocean (SPEEDO). Similar to the observations, the model ...
Time-Dependent Variations in the Arctic’s Surface Albedo Feedback and the Link to Seasonality in Sea Ice
Publisher: American Meteorological Society
Abstract: AbstractThe Arctic is warming 2 to 3 times faster than the global average. Arctic sea ice cover is very sensitive to this warming and has reached historic minima in late summer in recent years (e.g., 2007 and 2012). ...
Sources of the Equatorial Undercurrent in the Atlantic in a High-Resolution Ocean Model
Publisher: American Meteorological Society
Abstract: The ventilation of the Equatorial Undercurrent (EUC) in the Atlantic is investigated using data from a high-resolution ocean model. Overturning streamfunctions, subduction patterns, and pathways are determined from Eulerian ...
Influence of the Meridional Overturning Circulation on Tropical Atlantic Climate and Variability
Publisher: American Meteorological Society
Abstract: The influence of the meridional overturning circulation on tropical Atlantic climate and variability has been investigated using the atmosphere?ocean coupled model Speedy-MICOM (Miami Isopycnic Coordinate Ocean Model). In ...
Impact of the Midlatitude Storm Track on the Upper Pacific Ocean
Publisher: American Meteorological Society
Abstract: Transient eddies in the atmosphere induce a poleward transport of heat and moisture. A moist static energy budget of the surface layer is determined from the NCEP reanalysis data to evaluate the impact of the storm track. ...
Tropical Pacific–Driven Decadel Energy Transport Variability
Publisher: American Meteorological Society
Abstract: The atmospheric energy transport variability associated with decadal sea surface temperature variability in the tropical Pacific is studied using an atmospheric primitive equation model coupled to a slab mixed layer. The ...
How Can Tropical Pacific Ocean Heat Transport Vary?
Publisher: American Meteorological Society
Abstract: Pacific Ocean oceanic heat transport is studied in an ocean model coupled to an atmospheric mixed-layer model. The shallow meridional overturning circulation cells in the Tropics and subtropics transport heat away from the ...
Mechanisms of Northern Tropical Atlantic Variability and Response to CO2 Doubling
Publisher: American Meteorological Society
Abstract: A model study has been made of the mechanisms of the meridional mode in the northern tropical Atlantic (NTA) and the response to a doubling of atmospheric CO2. The numerical model consists of an atmospheric general circulation ...
Pathways into the Pacific Equatorial Undercurrent: A Trajectory Analysis
Publisher: American Meteorological Society
Abstract: A time-dependent trajectory algorithm is used to determine the sources of the Pacific Ocean Equatorial Undercurrent (EUC) in a global climate model with ¼° (eddy permitting) resolution and forced with realistic winds. The ...