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RISOn Forced Barotropic Vorticity Oscillations
Publisher: American Meteorological Society
Abstract: Forced, nonresonant barotropic response at low frequencies (? ? f) and large scales (L ? f/?) can be written in terms of a streamfunction, which is similar to the quasigeostrophically derived streamfunction. However, the ...
Large-Scale Ocean-Atmosphere Interactions in a Simplified Coupled Model of the Midlatitude Wintertime Circulation
Publisher: American Meteorological Society
Abstract: Midlatitude ocean-atmosphere interactions are studied in simulations from a simplified coupled model that includes synoptic-scale atmospheric variability, ocean current advection of sea surface temperature (SST), and air-sea ...
Nondivergent Planetary Oscillations in Midlatitude Ocean Basins with Continental Shelves
Publisher: American Meteorological Society
Abstract: Free oscillations in square, midlatitude basins with continental shelves and planetary vorticity gradients are numerically computed using the nondivergent shallow-water equations. The topography may rend a planetary mode ...
Predicting Western North Pacific Ocean Climate
Publisher: American Meteorological Society
Abstract: It is shown that wintertime sea surface temperature anomalies in the confluence region of the Kuroshio?Oyashio Currents in the western North Pacific can be skillfully predicted at lead times of up to 3 yr. The predictions ...
Did the Thermocline Deepen in the California Current after the 1976/77 Climate Regime Shift?
Publisher: American Meteorological Society
Abstract: The 55-yr California Cooperative Oceanic Fisheries Investigations (CalCOFI) dataset in the southern California Current reveals a significant surface-intensified warming and stratification (buoyancy frequency) change across ...
A Simplified Coupled Model of Extended-Range Predictability
Publisher: American Meteorological Society
Abstract: A simplified coupled atmosphere-ocean model is used to explore the influence of evolving midlatitude sea surface temperature (SST) anomalies on the theoretical extended-range predictability of the atmospheric wintertime ...
The Fortnightly and Monthly Tides: Resonant Rossby Waves or Nearly Equilibrium Gravity Waves?
Publisher: American Meteorological Society
Abstract: The fortnightly and monthly tides are discussed in the light of recent sea level observations and numerical modeling results. Within the tide gauge network of the low-latitude Pacific, the fortnightly tide is shown to ...
A Comparison of Some Tropical Ocean Models: Hindcast Skill and El Niño Evolution
Publisher: American Meteorological Society
Abstract: Tropical Pacific SST hindcasts are examined in the Zebiak and Cane (Lamont), Latif (MPIZ), Oberhuber (OPYC), and GFDL ocean models, each forced by the same wind-stress fields over the 1970?85 time interval. Skill scores ...
Eddy–Wind Interaction in the California Current System: Dynamics and Impacts
Publisher: American Meteorological Society
Abstract: he summertime California Current System (CCS) is characterized by energetic mesoscale eddies, whose sea surface temperature (SST) and surface current can significantly modify the wind stress and Ekman pumping. Relative ...
A Topographic–Rossby Mode Resonance over the Iceland–Faeroe Ridge
Publisher: American Meteorological Society
Abstract: An array of current meter moorings along 12°W on the southern side of the lceland-Faeroe Ridge reveals a narrowband barotropic oscillation with period 1.8 days in spectra of velocity. The signal is coherent over at least ...