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Alongshelf Variability of Inner-Shelf Circulation along the Central Oregon Coast during Summer
Publisher: American Meteorological Society
Abstract: The spatial and temporal variability of inner-shelf circulation along the central Oregon coast during the 2004 upwelling season is described using a 70-km-long array of moorings along the 15-m isobath. Circulation at three ...
Time-Varying Across-Shelf Ekman Transport and Vertical Eddy Viscosity on the Inner Shelf
Publisher: American Meteorological Society
Abstract: The event-scale variability of across-shelf transport was investigated using observations made in 15 m of water on the central Oregon inner shelf. In a study area with intermittently upwelling-favorable winds and significant ...
Semidiurnal Baroclinic Tides on the Central Oregon Inner Shelf
Publisher: American Meteorological Society
Abstract: emidiurnal velocity and density oscillations are examined over the mid- and inner continental shelf near Heceta Bank on the Oregon coast. Measurements from two long-term observation networks with sites on and off the ...
The Hydraulics of an Evolving Upwelling Jet Flowing around a Cape
Publisher: American Meteorological Society
Abstract: Upwelling jets flow alongshore in approximate geostrophic balance with the onshore pressure gradient induced by coastal upwelling. Observations of such jets have shown that they often move offshore downstream of capes, ...
Drifter Behavior on the Oregon–Washington Shelf during Downwelling-Favorable Winds
Publisher: American Meteorological Society
Abstract: Drifters released offshore of Oregon during predominantly downwelling favorable alongshore winds during three different deployments (October 1994, January 1998, and September 1998) display similar behavior: after being ...
The Relative Importance of Wind Strength and Along-Shelf Bathymetric Variations on the Separation of a Coastal Upwelling Jet
Publisher: American Meteorological Society
Abstract: A high-resolution numerical model with idealized topography is used to investigate the degree to which a coastal upwelling jet separates from the shelf as it flows around a submarine bank depending on the wind strength and ...
The Role of Wind Stress Curl in Jet Separation at a Cape
Publisher: American Meteorological Society
Abstract: A high-resolution numerical model is used to study the importance of spatial variability in the wind forcing to the separation of a coastal upwelling jet at a cape. An idealized topography and wind field based on observations ...
Microstructure Measurements from a Towed Undulating Platform
Publisher: American Meteorological Society
Abstract: MicroSoar, an undulating profiler capable of measuring turbulence parameters such as Thorpe scales and thermal dissipation rate while being towed at speeds of up to 4 m s?1, offers the possibility of obtaining a close-to-synoptic ...
Wave-Driven Inner-Shelf Motions on the Oregon Coast
Publisher: American Meteorological Society
Abstract: Recent work by S. Lentz et al. documents offshore transport in the inner shelf due to a wave-driven return flow associated with the Hasselmann wave stress (the Stokes?Coriolis force). This analysis is extended using ...
Intraseasonal Cross-Shelf Variability of Hypoxia along the Newport, Oregon, Hydrographic Line
Publisher: American Meteorological Society
Abstract: bservations of hypoxia, dissolved oxygen (DO) concentrations < 1.4 ml L?1, off the central Oregon coast vary in duration and spatial extent throughout each upwelling season. Underwater glider measurements along the Newport ...