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An Observational Study of Vertical Eddy Diffusivity in the Hurricane Boundary Layer
Publisher: American Meteorological Society
Abstract: lthough vertical eddy diffusivity or viscosity has been extensively used in theoretical and numerical models simulating tropical cyclones, little observational study has documented the magnitude of the eddy diffusivity in ...
Nonstationary Analysis of the Directional Properties of Propagating Waves
Publisher: American Meteorological Society
Abstract: It is proposed that the sea surface be studied in a way that takes into account the observed groupiness of wind-generated waves. A new method of analysis to study the directional properties of the surface is developed. It ...
The Air–Sea Momentum Flux in Conditions of Wind Sea and Swell
Publisher: American Meteorological Society
Abstract: During the Surface Wave Dynamics Experiment, direct measurements of momentum, heat, and water vapor fluxes were obtained from a mast on the foredeck of a SWATH (small water-plane area, twin hull) ship in deep water off the ...
Evidence for the Effects of Swell and Unsteady Winds on Marine Wind Stress
Publisher: American Meteorological Society
Abstract: Over the past four decades much effort has been directed toward determining a parameterization of the sea surface drag coefficient on readily measurable quantities, such as mean wind speed and atmospheric stability. Although ...
Parameterizing the Sea Surface Roughness
Publisher: American Meteorological Society
Abstract: The concept of an ?equivalent surface roughness? over the ocean is useful in understanding the relation between wind speed (at some height) and the net momentum flux from air to sea. The relative performance of different ...
Displacement Measurement Errors from Moving Platforms
Publisher: American Meteorological Society
Abstract: Errors in eddy correlation measurements from moving platforms (aircraft, ships, buoys, blimps, tethered balloons, and kites) include contamination of the measured fluctuations by superficial fluctuations associated with ...
The Atmospheric Boundary Layer during Swell: A Field Study and Interpretation of the Turbulent Kinetic Energy Budget for High Wave Ages
Publisher: American Meteorological Society
Abstract: Analysis of the turbulent kinetic energy (TKE) budget for five slightly unstable cases with swell has been performed based on measurements of mechanical production, buoyancy production, turbulent transport, and dissipation ...
Turbulence Structure of the Hurricane Boundary Layer between the Outer Rainbands
Publisher: American Meteorological Society
Abstract: As part of the Coupled Boundary Layers Air?Sea Transfer (CBLAST)-Hurricane program, flights were conducted to directly measure turbulent fluxes and turbulence properties in the high-wind boundary layer of hurricanes between ...
Observational Study of Marine Atmospheric Boundary Layer Characteristics during Swell
Publisher: American Meteorological Society
Abstract: By combining simultaneous data from an instrumented Air?Sea Interaction Spar (ASIS) buoy and a 30-m tower, profiles of wind and turbulence characteristics have been obtained at several heights from about 1 to 30 m above ...
Evidence of Energy and Momentum Flux from Swell to Wind
Publisher: American Meteorological Society
Abstract: easurements of pressure near the surface in conditions of wind sea and swell are reported. Swell, or waves that overrun the wind, produces an upward flux of energy and momentum from waves to the wind and corresponding ...