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The Shear, Convergence, and Thermohaline Structure of a Front
Publisher: American Meteorological Society
Abstract: With the objective of measuring convergence directly to confirm previous observations of frontal subduction, a seaward upwelling jet off central California was studied using satellite infrared images, hydrographic sections, ...
Observations of a Tropical Instability Vortex
Publisher: American Meteorological Society
Abstract: An upper-ocean vortex associated with tropical instabilities was observed during fall 1990 at 140°W in the shear region between the Pacific South Equatorial Current and the North Equatorial Counter current. The velocity ...
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 ...
High-Resolution Satellite Imagery for Mesoscale Meteorological Studies
Publisher: American Meteorological Society
Abstract: In this article high-resolution satellite imagery from a variety of meteorological and environmental satellites is compared. Digital datasets from Geostationary Operational Environmental Satellite (GOES), National Oceanic ...
Existence and Formation Mechanism of the North Hawaiian Ridge Current
Publisher: American Meteorological Society
Abstract: Available surface drifter data are analyzed to determine the characteristics of the North Hawaiian Ridge Current (NHRC) and its relation to the ocean circulation around the Hawaiian waters. The NHRC is found to exist as a ...
Vortex Merging in a 1½-Layer Fluid on an f Plane
Publisher: American Meteorological Society
Abstract: Mass, angular momentum, and energy budgets are examined in an analytical model of vortex merging relevant to midlatitude mesoscale eddies. The vortices are baroclinic and cyclogeostrophic. The fluid surrounding them is ...
Tidal Mixing Events on the Deep Flanks of Kaena Ridge, Hawaii
Publisher: American Meteorological Society
Abstract: A 3-month mooring deployment (August?November 2002) was made in 2425-m depth, on the south flank of Kaena Ridge, Hawaii, to examine tidal variations within 200 m of the steeply sloping bottom. Horizontal currents and ...
Vorticity Balance off the South Shore of Oahu, Hawaii, Derived by High-Frequency Radio Doppler Current Observations
Publisher: American Meteorological Society
Abstract: High-frequency radio Doppler surface current observations off the south shore of Oahu, Hawaii, are used to calculate the vorticity equation at a ~2-km spatial resolution in terms of a time-dependent and time-mean surface ...
The Vorticity Balance of the Ocean Surface in Hawaii from a Regional Reanalysis
Publisher: American Meteorological Society
Abstract: he ocean surface vorticity budget around the Hawaiian Islands is examined using an 18-month model reanalysis generated using four-dimensional variational state estimation with all available observations (satellite, in situ, ...
Lagrangian Study of Tropical Instability Vortices in the Atlantic
Publisher: American Meteorological Society
Abstract: Tropical instability waves and tropical instability vortices (TIVs) exert major controls on ocean dynamics, thermodynamics, and biology on intraseasonal to seasonal time scales. To understand the fundamental mechanisms at ...