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.
Description
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
Location
California
Info 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
Comments
Personnel from USGS, SIO, and NUC. Naval Undersea Center Tower.
Staff information imported from InfoBank
Dave Cacchione (USGS Western Region) - Chief Scientist
Dave Drake (USGS Western Region) - Chief Scientist
John Dingler (USGS Western Region) - Associate Investigator
Francis P. Shepard (Scripps Institution Of Oceanography) - Associate Investigator
Clinton Winant (Scripps Institution Of Oceanography) - Associate Investigator
Dale Good (Naval Undersea Center) - Associate Investigator
Jack Olson (Naval Undersea Center) - Associate Investigator
Paul Hanson (Naval Undersea Center) - Associate Investigator
