Field Activity WD108MB

Identifier WD108MB
Alternate names W-D1-08-MB
Purpose 1. Investigate the evolution of bed-sediment grain size on the inner shelf on event and seasonal time scales, in response to enrichment from a fluvial sources and winnowing by wave action. 2. Investigate the influence of grain size, bedform dimensions, wave energy, and current speed on suspended-sediment concentration and sediment transport.
Description United States Geological Survey, Pacific Science Center. Chief Scientists: Jessie Lacy, Dave Rubin. Tripod Deployment data of field activity W-D1-08-MB in Santa Cruz wharf from 10/30/2008 to 05/24/2010
Location Santa Cruz wharf
Comments Long-term, cabled deployment for real-time data collection. Mooring #SCW08WHT
Projects
Itinerary
Start (port not specified) 2008-10-30
End (port not specified) 2010-05-24
Bounds
West -122.017
East -122.01691
North 36.95693
South 36.9569
Activity Tripod Deployment

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Jessica R LacyRubin, Dave
Crew members
Information specialist(s)
Jessica R Lacy
Specialist, Information

Data types and categories

Data category: Location-Elevation, Time Series
Data type: Navigation, Mooring (physical oceanography)

Equipment used

Equipment Usage description Data types Datasets
GPS Navigation 2
Moorings - Tripods Mooring (physical oceanography) 1

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
Best file with nav in ArcInfo E00 format GPS Jessica R Lacy
Global positioning system (GPS) data w-d1-08-mb.060 GPS Provisional best file Jessica R Lacy
Near-bed velocity measurements in Monterey Bay during arrival of the 2010 Chile Tsunami Moorings - Tripods On February 27, 2010, a tsunami originating near Chile arrived in Monterey Bay, California. This data release comprises two hours of pressure and near-bed velocity data spanning the largest tsunami waves. At the time, the U.S. Geological Survey Pacific Coastal and Marine Science Center had a remotely-controlled instrumented platform deployed adjacent to the Santa Cruz Municipal Wharf (mean depth 9 m) for collecting hydrodynamic and sediment transport data. In anticipation of the arrival of the tsunami, sampling was changed to better capture the event. Pressure and near-bed velocity profiles were measured at 1 Hz for 25 minutes every half hour. The velocities are influenced by surface waves, tsunami waves, and tidal currents. The velocity profiles capture the unsteady boundary layer that developed due to the tsunami-induced currents. They are useful for understanding the frictional interaction of the tsunami with the sea floor, as well as sediment transport produced by the tsunami. Joanne C. T Ferreira

Publications

Samples collected during this field activity