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ID N-1-76-SC
Also Known As SEDYNEX_1
Abstract Chief Scientists: Dave Cacchione, Dave Drake. Geophysical data (Geoprobe, currentmeter, pressuresensor, underwatertelevision, thermistor, temperature, opticalbackscattersensor, waterbucket, wavepressure, remoteopticalsensor, ADP, dyedsand, barometer) of field activity N-1-76-SC in One mile offshore of Mission Beach, San Diego, California from 07/20/1976 to 07/30/1976
Project/Theme Sediment Dynamics Experiment
Chief Scientist Dave Cacchione
Dave Drake
Activity Type Geophysical
Platform NUC Tower
Area of Operation One mile offshore of Mission Beach, San Diego, California, Southern California
Bounding Coordinates
34.75000
-122.75000    -116.75000
32.25000
Dates 07/20/1976 (JD 202) to 07/30/1976 (JD 212)
Analog Materials list
Crew
Dave Cacchione Chief Scientist, USGS Western Region
Dave Drake Chief Scientist, USGS Western Region
John Dingler Associate Investigator, USGS Western Region
Francis P. Shepard Associate Investigator, Scripps Institution Of Oceanography
Clinton Winant Associate Investigator, Scripps Institution Of Oceanography
Dale Good Associate Investigator, Naval Undersea Center
Jack Olson Associate Investigator, Naval Undersea Center
Paul Hanson Associate Investigator, Naval Undersea Center
Equipment Used
Geoprobe
currentmeter
pressuresensor
underwatertelevision
thermistor
temperature
opticalbackscattersensor
waterbucket
wavepressure
remoteopticalsensor
ADP
dyedsand
barometer
Purpose
1. To investigate the dynamic relationships between the suspended and
bottom sediment and the near-bottom flow field over a period of about one week
at a specific site on the inner continental shelf off southern California.
2. Tests and evaluation of the operational performance, handling and utility of
the Geoprobe station in the offshore zone.
3. Comparison of the performance characteristics of the current meters and
pressure sensor with that of other electromagnetic current meters and pressure
sensors.
4. Analysis of the time-dependent vertical distribution, chemical composition,
and hydraulic properties of suspended materials in the water column at the
experimental site.
5. Correlation of the movement of bottom and suspended sediment with the
dominant hydrodynamic mechanisms driving the near-bottom flow field. In
particular, an evaluation will be made of the effectiveness of shoaling internal
waves in producing sediment transport.
6. Measurements of current velocity and water temperature at several locations
near the sea floor to provide information on bottom boundary layer processes and
their role in producing sediment movement.
7. Correlation of the size and migration rate of the small scale bedforms with
the near-bottom flow field.
8. Grain size and mineralogic analyses of the sediments from selected sites
between the beach and the outer instrument packages.
Information to be Derived
Surface wave currents and pressure; Internal waves currents
and temperature; Surface tide currents and pressure; Wind-driven
currents; Bottom sediment size, composition, and photos; Suspended
sediment size and composition; Wind speed; Wind direction;
Air pressure; Surface water temperature
Notes
Personnel from USGS, SIO, and NUC. Naval Undersea Center Tower.
Got Help? For N-1-76-SC, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, kms of navigation, national plan, NGDC Info, organization, owner, ports, project number, publications, scanned materials, seismic description, station count, station description, submersible, summary, tabulated info.
Type Webpage KMZ Arc         Metadata        
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Navigation data nav    
Times   050.times    

N-1-76-SC location map of where navigation 

equipment operated

 
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Page Last Modified: Tue Oct 29 14:31:03 PDT 2013  (chd)