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Do High-Frequency Radars Measure the Wave-Induced Stokes Drift?
Publisher: American Meteorological Society
Abstract: ABSTRACTHigh-frequency (HF) radars remotely measure ocean near-surface currents based on the Doppler shift of electromagnetic waves backscattered by surface gravity waves with half the electromagnetic wavelength, called ...
Quasigeostrophic Diagnosis of Mixed Layer Dynamics Embedded in a Mesoscale Turbulent Field
Publisher: American Meteorological Society
Abstract: quasigeostrophic model is developed to diagnose the three-dimensional circulation, including the vertical velocity, in the upper ocean from high-resolution observations of sea surface height and buoyancy. The formulation ...
Inertial Oscillations in Geostrophic Flow: Is the Inertial Frequency Shifted by ζ/2 or by ζ?
Publisher: American Meteorological Society
Abstract: he short answer to the question posed in the title is that it depends on the frame of reference chosen to describe the motions. In the inertial limit, the frequency in a rotating frame of reference corresponds to the ...
Experimental Assessment of the Performance of High-Frequency CODAR and WERA Radars to Measure Ocean Currents in Partially Ice-Covered Waters
Publisher: American Meteorological Society
Abstract: igh-frequency radars (HFRs) measure ocean surface currents remotely through the Bragg scattering of radio waves by surface gravity waves with wavelengths shorter than 50 m. HFR range is affected by sea ice, which dampens ...
Dependence of 25-MHz HF Radar Working Range on Near-Surface Conductivity, Sea State, and Tides
Publisher: American Meteorological Society
Abstract: AbstractA 1.6-yr time series of radial current velocity from a 25-MHz high-frequency radar system located near a coastal river plume is analyzed to determine how the working range varies in response to changing near-surface ...
Interactions between a Submesoscale Anticyclonic Vortex and a Front
Publisher: American Meteorological Society
Abstract: The evolution of a submesoscale anticyclonic vortex was observed by high-frequency Doppler radio current meters and satellite radiometers. The vortex formed between two large cyclones to the southwest of Oahu, Hawaii. The ...
The Water-Following Performance of Various Lagrangian Surface Drifters Measured in a Dye Release Experiment
Publisher: American Meteorological Society
Low-Frequency Surface Currents and Generation of an Island Lee Eddy in Panay Island, Philippines
Publisher: American Meteorological Society
Abstract: AbstractHigh-frequency Doppler radar (HFDR) and acoustic Doppler current profiler (ADCP) time-series observations during the Philippine Straits Dynamics Experiment (PhilEx) were analyzed to describe the mesoscale currents ...
Observations of Vortex Rossby Waves Associated with a Mesoscale Cyclone
Publisher: American Meteorological Society
Abstract: Short-wavelength (L ? 100 km) Rossby waves with an eastward zonal phase velocity were observed by high-frequency radio Doppler current meters and moored ADCPs west of Oahu, Hawaii, during spring 2003. They had Rossby numbers ...