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RISA Comparison of Intermonthly and Interannual Teleconnections in the 700 mb Geopotential Height Field during the Northern Hemisphere Winter
Publisher: American Meteorological Society
Abstract: Intermonthly and interannual teleconnection patterns in the 700 mb geopotential height field during the Northern Hemisphere winter are computed by the method of digital filtering and spatial correlation analysis. A comparison ...
Subgrid Surface Fluxes in Fair Weather Conditions during TOGA COARE: Observational Estimates and Parameterization
Publisher: American Meteorological Society
Abstract: Bulk aerodynamic formulas are applied to meteorological data from low-altitude aircraft flights to obtain observational estimates of the subgrid enhancement of momentum, sensible heat, and latent heat exchange at the ...
Northern Hemisphere Wintertime Variability in a Two-Level General Circulation Model. Part II. The Maintenance of Short and Long Time-Scale Disturbances
Publisher: American Meteorological Society
Abstract: The energetics of large-scale disturbances of the wintertime, Northern Hemisphere circulation are studied with the OSU two-level general circulation model. The behavior of simulated eddies with short time-scale (2.5 to 10 ...
Northern Hemisphere Wintertime Variability in a Two-Level General Circulation Model. Part 1: Statistical Characteristics of Short and Long Time-Scale Disturbances
Publisher: American Meteorological Society
Abstract: The properties of atmospheric Northern Hemisphere wintertime variability, simulated by the Oregon State University two-level general circulation model are examined. Time series of the dependent variables and diabatic heating ...
A Composite Life Cycle of Nonsquall Mesoscale Convective Systems over the Tropical Ocean. Part I: Kinematic Fields
Publisher: American Meteorological Society
Abstract: The wind fields associated with cloud clusters observed during the Global Atmospheric Research Program's Atlantic Tropical Experiment (GATE) are investigated. A compositing procedure is devised to isolate the cluster ...
Estimation of Surface Heat Flux
Publisher: American Meteorological Society
Abstract: The authors reconsider the problem of estimating the sensible heat transfer at the earth's surface from direct measurements of turbulent fluxes in the atmospheric boundary layer. For simplicity, only horizontally homogeneous ...
Satellite and Buoy Observations of Boreal Summer Intraseasonal Variability in the Tropical Northeast Pacific
Publisher: American Meteorological Society
Abstract: Tropical intraseasonal variability in the eastern North Pacific during June?September of 2000?03 is analyzed using satellite and buoy observations. Quick Scatterometer ocean vector winds and the Tropical Rainfall Measuring ...
Estimating Monthly Averaged Air-Sea Transfers of Heat and Momentum Using the Bulk Aerodynamic Method
Publisher: American Meteorological Society
Abstract: Air-sea transfers of sensible heat, latent heat and momentum are computed from 25 years of middle-latitude and subtropical ocean weather ship data in the North Atlantic and North Pacific using the bulk aerodynamic method. ...
Enhancement of Tropical Ocean Evaporation and Sensible Heat Flux by Atmospheric Mesoscale Systems
Publisher: American Meteorological Society
Abstract: The enhancement of monthly averaged evaporation by atmospheric mesoscale systems is estimated from long-term hourly observations of surface meteorological data from the Tropical Ocean Global Atmosphere (TOGA) Tropical ...
The Amplification of East Pacific Madden–Julian Oscillation Convection and Wind Anomalies during June–November
Publisher: American Meteorological Society
Abstract: Madden?Julian oscillation (MJO) wind and convection anomalies are locally amplified over the northeast Pacific warm pool during June?November. Composite analysis using NCEP reanalysis data indicates that perturbation ...