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RISObserved Anisotropy of Spectral Characteristics of Internal Waves Induced by Low-Frequency Currents
Publisher: American Meteorological Society
Abstract: The isotropy of the internal wave field is investigated from short-time spectra of horizontal current measured in the deep sea. A significant anisotropy is detected at high frequencies during most periods of large mean ...
A Cautionary Note on the Use of Statistical Atmospheric Models in the Middle Latitudes: Comments on “Decadal Variability in the North Pacific as Simulated by a Hybrid Coupled Model”
Publisher: American Meteorological Society
Abstract: A simple SST anomaly model is used to demonstrate that midlatitude statistical atmospheric models bias the air?sea fluxes toward positive air?sea feedback and distort the coupling between ocean and atmosphere.
On the Noise Level of Climate Models
Publisher: American Meteorological Society
Abstract: The stochastic character of short time scale atmospheric variables induce unpredictable fluctuations in the climatic system. These fluctuations are treated here as a ?forced noise level? to be taken into account in climate ...
Analysis of the GISS GCM Response to a Subtropical Sea Surface Temperature Anomaly Using a Linear Model
Publisher: American Meteorological Society
Abstract: The GISS general circulation model (GCM) is used to investigate the influence of a positive sea surface temperature (SST) anomaly in the subtropical North Pacific on the Northern Hemisphere wintertime circulation. As the ...
Simulated Variability of the Circulation in the North Atlantic from 1953 to 2003
Publisher: American Meteorological Society
Abstract: The variability of the circulation in the North Atlantic and its link with atmospheric variability are investigated in a realistic hindcast simulation from 1953 to 2003. The interannual-to-decadal variability of the subpolar ...
Transient Atmospheric Response to Interactive SST Anomalies
Publisher: American Meteorological Society
Abstract: The transient atmospheric response to interactive SST anomalies in the midlatitudes is investigated using a three-layer QG model coupled in perpetual winter conditions to a slab oceanic mixed layer in the North Atlantic. ...
Response of the GISS General Circulation Model to a Midlatitude Sea Surface Temperature Anomaly in the North Pacific
Publisher: American Meteorological Society
Abstract: The influence of a North Pacific sea surface temperature (SST) anomaly on the wintertime atmospheric circulation is investigated with the GISS general circulation model (GCM) 2. Although no signal could be detected by the ...
Testing, Model Simulations of the Thermocline Depth Variability in the Tropical Atlantic from 1982 through 1984
Publisher: American Meteorological Society
Abstract: The multivariate model toning procedure of Frankignoul et al. has been extended to the general time-series case, thus allowing to test ocean model ability at simulating the interannual variability. The method aims at ...
Modes of North Atlantic Decadal Variability in the ECHAM1/LSG Coupled Ocean–Atmosphere General Circulation Model
Publisher: American Meteorological Society
Abstract: The climate variability in the North Atlantic sector is investigated in a 325-yr integration of the ECHAM1/ LSG coupled ocean?atmosphere general circulation model. At the interannual timescale, the coupled model behaves ...
Direct Atmospheric Forcing of Geostrophic Eddies
Publisher: American Meteorological Society
Abstract: To assess the role of direct stochastic wind forcing in generating oceanic geostrophic eddies we calculate analytically the response of a simple ocean model to a realistic model wind-stress spectrum and compare the results ...