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RISBjerknes-like Compensation in the Wintertime North Pacific
Publisher: American Meteorological Society
Abstract: bservational and model evidence has been mounting that mesoscale eddies play an important role in air?sea interaction in the vicinity of western boundary currents and can affect the jet stream storm track. What is less ...
Numerical Simulation of Atmospheric Response to Pacific Tropical Instability Waves
Publisher: American Meteorological Society
Abstract: Tropical instability waves (TIWs) are 1000-km-long waves that appear along the sea surface temperature (SST) front of the equatorial cold tongue in the eastern Pacific. The study investigates the atmospheric planetary ...
Effects of Central American Mountains on the Eastern Pacific Winter ITCZ and Moisture Transport
Publisher: American Meteorological Society
Abstract: The intertropical convergence zone (ITCZ) is displaced to the south edge of the eastern Pacific warm pool in boreal winter, instead of being collocated. A high-resolution regional climate model is used to investigate the ...
Diagnostics for Near-Surface Wind Response to the Gulf Stream in a Regional Atmospheric Model
Publisher: American Meteorological Society
Abstract: he mechanisms acting on near-surface winds over the Gulf Stream are diagnosed using 5-yr outputs of a regional atmospheric model. The diagnostics for the surface-layer momentum vector, its curl, and its convergence are ...
Air–Sea Turbulent Heat Fluxes in Climate Models and Observational Analyses: What Drives Their Variability?
Publisher: American Meteorological Society
Abstract: AbstractA traditional view is that the ocean outside of the tropics responds passively to atmosphere forcing, which implies that air?sea heat fluxes are mainly driven by atmosphere variability. This paper tests this viewpoint ...
Spatial Patterns and Intensity of the Surface Storm Tracks in CMIP5 Models
Publisher: American Meteorological Society
Abstract: o improve the understanding of storm tracks and western boundary current (WBC) interactions, surface storm tracks in 12 CMIP5 models are examined against ERA-Interim. All models capture an equatorward displacement toward ...
What Maintains the SST Front North of the Eastern Pacific Equatorial Cold Tongue?
Publisher: American Meteorological Society
Abstract: A coupled ocean?atmosphere regional model suggests a mechanism for formation of a sharp sea surface temperature (SST) front north of the equator in the eastern Pacific Ocean in boreal summer and fall. Meridional convergence ...
Numerical Simulation of Boundary Layer Structure and Cross-Equatorial Flow in the Eastern Pacific
Publisher: American Meteorological Society
Abstract: Recent observations from spaceborne microwave sensors have revealed detailed structure of the surface flow over the equatorial eastern Pacific in the boreal fall season. A marked acceleration of surface wind across the ...
The Benguela Upwelling System: Quantifying the Sensitivity to Resolution and Coastal Wind Representation in a Global Climate Model
Publisher: American Meteorological Society
Abstract: f all the major coastal upwelling systems in the world?s oceans, the Benguela, located off southwest Africa, is the one that climate models find hardest to simulate well. This paper investigates the sensitivity of upwelling ...
Western Boundary Currents and Frontal Air–Sea Interaction: Gulf Stream and Kuroshio Extension
Publisher: American Meteorological Society
Abstract: In the Northern Hemisphere midlatitude western boundary current (WBC) systems there is a complex interaction between dynamics and thermodynamics and between atmosphere and ocean. Their potential contribution to the climate ...