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Revisiting Near-Inertial Wind Work: Slab Models, Relative Stress, and Mixed Layer Deepening
Publisher: American Meteorological Society
Abstract: The wind generation of near-inertial waves is revisited through use of the Pollard–Rhines–Thompson theory, the Price–Weller–Pinkel (PWP) mixed layer model, and KPP simulations of resonant forcing by Crawford and Large. An ...
Global Calculations of Local and Remote Near-Inertial-Wave Dissipation
Publisher: American Meteorological Society
Abstract: Global estimates are presented of the fraction q of wind-generated near-inertial wave power available for local turbulent dissipation under the assumption that modes 1–3 propagate “far” and the higher modes remain to ...
Fine-Structure Contamination: Observations and a Model of a Simple Two-Wave Case
Publisher: American Meteorological Society
Abstract: Internal waves advect vertical structure past Eulerian (fixed depth) sensors, leading to ?fine-structure contamination,? wherein the intrinsic frequency spectrum is Doppler shifted by the advective motions. Shear, velocity, ...
Internal Swell Generation: The Spatial Distribution of Energy Flux from the Wind to Mixed Layer Near-Inertial Motions
Publisher: American Meteorological Society
Abstract: The energy flux from the wind to inertial mixed layer motions is computed for all oceans from 50°S to 50°N for the years 1996?99. The wind stress, τ, is computed from 6-h, 2.5°-resolution NCEP?NCAR global reanalysis surface ...
Patterns of Turbulent and Double-Diffusive Phenomena: Observations from a Rapid-Profiling Microconductivity Probe
Publisher: American Meteorological Society
Abstract: Throughout much of the ocean interior, the diapycnal buoyancy flux is maintained by both mechanical and double-diffusive processes. Assessing the relative roles of each is a challenge, particularly in complex coastal ...
Sustained, Full-Water-Column Observations of Internal Waves and Mixing near Mendocino Escarpment
Publisher: American Meteorological Society
Abstract: The relative strength and spatiotemporal structure of near-inertial waves (NIW) and internal tides (IT) are examined in the context of recent moored observations made 19 km south of Mendocino Escarpment, an abrupt ridge/step ...
Global Patterns of Low-Mode Internal-Wave Propagation. Part I: Energy and Energy Flux
Publisher: American Meteorological Society
Abstract: Extending an earlier attempt to understand long-range propagation of the global internal-wave field, the energy E and horizontal energy flux F are computed for the two gravest baroclinic modes at 80 historical moorings ...
Velocity Structure of Internal Tide Beams Emanating from Kaena Ridge, Hawaii
Publisher: American Meteorological Society
Abstract: bservations are reported of the semidiurnal (M2) internal tide across Kaena Ridge, Hawaii. Horizontal velocity in the upper 1000?1500 m was measured during eleven ~240-km-long shipboard acoustic Doppler current profiler ...
Seasonal and Spatial Variability of Near-Inertial Kinetic Energy from Historical Moored Velocity Records
Publisher: American Meteorological Society
Abstract: Temporal and spatial patterns of near-inertial kinetic energy (KEmoor) are investigated in a database of 2480 globally distributed, moored current-meter records (deployed on 690 separate moorings) and compared with the ...
New Altimetric Estimates of Mode-1 M2 Internal Tides in the Central North Pacific Ocean
Publisher: American Meteorological Society
Abstract: New estimates of mode-1 M2 internal tide energy flux are computed from an extended Ocean Topography Experiment (TOPEX)/Poseidon (T/P) altimeter dataset that includes both the original and tandem tracks, improving spatial ...