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Influence of Mean Wind Direction on Sea Surface Wave Development
Publisher: American Meteorological Society
Abstract: Momentum flux measurements made from an instrumented ocean buoy indicate that the surface drag coefficient CD is strongly dependent on changes in mean wind direction. A change in mean wind direction is accompanied by a ...
Structure of Turbulence over Water during High Winds
Publisher: American Meteorological Society
Abstract: Turbulence fluctuations over water are found to change for wind speeds more than 10?12 m s?1. Increase in turbulence level beyond this critical wind speed may be attributed to the formation of helical roll vortices. Integral ...
Statistical Hypothesis Tests of Some Micrometeorological Observations
Publisher: American Meteorological Society
Abstract: Chi-square goodness-of-fit is used to test the hypothesis that the medium scale of turbulence in the atmospheric surface layer is normally distributed. Coefficients of skewness and excess are computed from the data. If the ...
Response Characteristics of a New Bidirectional Vane
Publisher: American Meteorological Society
Abstract: The design and construction of a bivane to measure horizontal and elevation angle fluctuations in the atmosphere are presented. Wind tunnel tests indicated a reasonably high-frequency response. Field comparisons with a ...
Comparison of Mean Wind Speeds and Turbulence at a Coastal Site and Offshore Location
Publisher: American Meteorological Society
Abstract: Observations of mean wind speed and longitudinal turbulence at a height of 8 m over the Atlantic ocean, 5 km off Long Island, New York, were compared with simultaneous observations at the beach. Results were grouped into ...
Instrumentation and Data Acquisition System for an Air-Sea Interaction Buoy
Publisher: American Meteorological Society
Abstract: Instrumentation and data acquisition system for a typical air-sea interaction experiment are described. The experiments were conducted with the help of a stable air-sea interaction buoy anchored 5 km offshore in the Atlantic ...
Effect of Axis Ratio on Fluid Flow Around an Elliptic Cylinder—A Numerical Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The bluff body simulations over canonical forms like circular and square cylinders are very well studied and the correlations for bulk parameters like mean drag coefficient and Strouhal numbers for the same are reported ...
Seasonal Variations in the Formation of Internal Gravity Waves at a Coastal Site
Publisher: American Meteorological Society
Abstract: Atmospheric internal gravity waves that formed over a coastal and an inland site were identified from analog records of wind speed and direction. Internal gravity waves occurred at all hours at the coastal site but only ...
SATDAS—For Air-Sea Interaction Data Acquisition Using Satellite Telemetry
Publisher: American Meteorological Society
Abstract: SATDAS (Satellite Data Acquisition System) is a data acquisition system utilizing a satellite telemetry link that has been developed for Brookhaven National Laboratory, Upton, N.Y. It is to be used for air-sea interaction ...