Observations and Modeling of Currents Within the Monterey Bay During May 1988

Observations and Modeling of Currents Within the Monterey Bay During May 1988 PDF Author: Kim A. Koehler
Publisher:
ISBN:
Category : Ocean currents
Languages : en
Pages : 132

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Book Description
April and May of 1988 along the central California coast were characterized as a period of strong coastal upwelling produced by moderate to strong northwesterly winds present throughout the period. A product of this upwelling event was the manifestation of southward geostrophic currents which extended to a distance of approximately 50 km from the coast. From 08 to 11 May 1988, hydrographic surveying was conducted within the Monterey Bay. Internal waves, with amplitudes of up to 30 m were present throughout the period and effectively masked the mean signal, implying that averaging is essential to avoid aliasing. The current -- temperature -- depth (CTD) data were averaged to estimate the mean field during this time frame. Acoustic Doppler Current Profiler (ADCP) data, were also averaged. The mean flow field and dynamic topography implied anticyclonic surface flow with cyclonic flow at 200 m depth. ADCP derived mean flows compared favorably with geostrophic mean flow rate in all areas except one, the deep outflow region along the northern wall of the Canyon. Application of ocean models of boundary layer flow of the geostrophic mean field yielded flows similar to those described above. Wind stress experiments indicated that strong wind field may influence surface circulation in the Bay. Interactions between the coastal upwelling geostrophic jet and the Monterey Submarine Canyon is believed to have been a major mechanism responsible for the mean flow.

Observations and Modeling of Currents Within the Monterey Bay During May 1988

Observations and Modeling of Currents Within the Monterey Bay During May 1988 PDF Author: Kim A. Koehler
Publisher:
ISBN:
Category : Ocean currents
Languages : en
Pages : 132

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Book Description
April and May of 1988 along the central California coast were characterized as a period of strong coastal upwelling produced by moderate to strong northwesterly winds present throughout the period. A product of this upwelling event was the manifestation of southward geostrophic currents which extended to a distance of approximately 50 km from the coast. From 08 to 11 May 1988, hydrographic surveying was conducted within the Monterey Bay. Internal waves, with amplitudes of up to 30 m were present throughout the period and effectively masked the mean signal, implying that averaging is essential to avoid aliasing. The current -- temperature -- depth (CTD) data were averaged to estimate the mean field during this time frame. Acoustic Doppler Current Profiler (ADCP) data, were also averaged. The mean flow field and dynamic topography implied anticyclonic surface flow with cyclonic flow at 200 m depth. ADCP derived mean flows compared favorably with geostrophic mean flow rate in all areas except one, the deep outflow region along the northern wall of the Canyon. Application of ocean models of boundary layer flow of the geostrophic mean field yielded flows similar to those described above. Wind stress experiments indicated that strong wind field may influence surface circulation in the Bay. Interactions between the coastal upwelling geostrophic jet and the Monterey Submarine Canyon is believed to have been a major mechanism responsible for the mean flow.

Observations and Modeling of Currents Within the Monterey Bay During May 1988

Observations and Modeling of Currents Within the Monterey Bay During May 1988 PDF Author: Kim A. Koehler
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Characterization of Tidal Currents in Monterey Bay from Remote and In-situ Measurements

Characterization of Tidal Currents in Monterey Bay from Remote and In-situ Measurements PDF Author: Emil T. Petruncio
Publisher:
ISBN:
Category : Tidal currents
Languages : en
Pages : 124

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Book Description
A first order description of tidal heights and currents in Monterey Bay is provided. Analysis of sea level records indicate that a mixed, predominantly semidiurnal tide nearly co-oscillates within the bay. Analysis of month-long moored ADCP records obtained in the winter and summer of 1992 reveals that tidal-band currents account for approximately 50 percent of the total current variance in the upper ocean (20-200 m). A relatively strong (7 cm/s) fortnightly tide (MSf) is present in both seasons. Considerable rotation of the semidiurnal ellipse orientations occurs with depth during both seasons. A month- long record of surface current measurements obtained with CODAR, an HF radar system, during September 1992 reveals that the Monterey Submarine Canyon clearly influences the strength and direction of semidiurnal (M2) tidal currents. Good agreement exists between the strength and orientation of ADCP- and CODAR-derived tidal ellipses, with the exception of the constituent K1. Large, spatially uniform K1 surface currents (20-30 cm/s) appear to be the result of diurnal sea breeze forcing.

The Monterey Submarine Canyon, California Moored Array Data Report

The Monterey Submarine Canyon, California Moored Array Data Report PDF Author: Kaye Kinoshita
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 136

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Studies of Mesopelagic Cnidarians in Monterey Bay, California

Studies of Mesopelagic Cnidarians in Monterey Bay, California PDF Author: Dawn Alexandra Murray Osborn
Publisher:
ISBN:
Category : Hydromedusae
Languages : en
Pages : 254

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Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1234

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Government Reports Annual Index

Government Reports Annual Index PDF Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1688

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 364

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Report of Activities

Report of Activities PDF Author: Southwest Fisheries Center (U.S.)
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 164

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Government Reports Announcements & Index

Government Reports Announcements & Index PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1132

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