| Identifier | C109NC | ||||||||
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| Alternate names | C-1-09-NC | ||||||||
| Purpose | Ground-truth geophysical data using video, digital seafloor imagery, sub-bottom profiling and physical sampling | ||||||||
| Description | United States Geological Survey, Pacific Science Center. Chief Scientist: Guy Cochrane. Bottom camera survey, sediment sampling, mini sparker profiling data of field activity C-1-09-NC in Humboldt Bay, CA to the Oregon border, state waters (3 nmi) from 07/12/2009 to 08/02/2009 | ||||||||
| Location | Northern California state waters (3 nmi) | ||||||||
| Summary | 21 days spent collecting underwater video on transects over multibeam data coverage areas in 10 to 120 m water depths in the state waters of northern California. Video, photographs, sediment samples, and minisparker profiles were collected throughout cruise. Digital video tapes. Data files of video observations. Digital macro photos. Bottom grab samples. | ||||||||
| Info derived | video, still camera, hi-definition video, shipboard observations , sampling | ||||||||
| Comments | Staff information imported from InfoBank Guy Cochrane (USGS, Santa Cruz, CA) - Principal Investigator Pete Dartnell (USGS, Menlo Park, CA) - Research Geologist Eleyne Phillips (USGS, Menlo Park, CA) - Geologist Lisa Krigsmans (NMFS, Santa Cruz, CA) - Research Biologist Andrew Ritchie - Geologist Hank Chezar (USGS, Menlo Park, CA) - Video Technician Tim Elfers (USGS, Santa Cruz, CA) - MT Dave Gonzales (USGS, Santa Cruz, CA) - ET Pete Dal Ferro (USGS, Santa Cruz, CA) - MT Jackson Currie (USGS, Santa Cruz, CA) - ET Peter Harkins (USGS, Santa Cruz, CA) - MT Nadine Golden (USGS, Santa Cruz, CA) - Geographer Non USGS data manager = Eleyne Phillips | ||||||||
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| Activity | Bottom camera survey, sediment sampling, mini sparker profiling |
| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Affiliate staff | Eleyne Phillips (USGS, Menlo Park, CA) - Geologist,Lisa Krigsmans (NMFS, Santa Cruz, CA) - Research Biologist |
| Data category: | Imagery, Location-Elevation, Seismics |
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| Data type: | Photo, Video, Navigation, Sparker |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| underwatercamera | Photo | 1 | |
| navigation | Navigation | 1 | |
| sparker | Sparker | 3 | |
| imagery | Photo, Video | 1 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| C109NC_video_observations | underwatercamera | This part of DS 781 presents video observations from cruise C109NC in northern California. The vector data file is included in ""c109nc_video_observations.zip,"" which is accessible from https://pubs.usgs.gov/ds/781/video_observations/data_catalog_video_observations.html. In 2006 and 2007, the seafloor in northern California was mapped by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), using both multibeam echosounders and bathymetric sidescan sonar units. This mapping mission collected bathymetry and acoustic-backscatter data from about the 10-m isobath to out beyond the 3-nautical-mile limit of California's State Waters. To validate the interpretations of sonar data in order to turn it into geologically and biologically useful information, the USGS ground-truth surveyed the data by towing camera sleds over specific locations throughout the region. During the 2009 ground-truth cruise, the camera sled housed two video cameras (one forward looking and the other vertical looking), a high-definition video camera, and an 8-megapixel digital still camera. The video was fed in real time to the research vessel, where USGS and NOAA scientists recorded both the geologic and biologic character of the seafloor into programmable keypads once every minute. In addition to recording the seafloor characteristics, a digital still photograph was captured once every 30 seconds. This ArcGIS shape file includes the position of the camera, the time each observation was started, and the visual observations of geologic and biologic habitat. | Guy R Cochrane |
| Global positioning system (GPS) data c-1-09-nc.063 | navigation | Provisional best file | Guy R Cochrane |
| Sediment thickness from seismic reflection data collected offshore of Eureka, California | sparker | Sediment thickness data raster for the Offshore of Eureka, California, map area is part of USGS Data Series 781 | Guy R Cochrane |
| Seismic FFID/Shot/CDP data c-1-09-nc.410_sparker | sparker | Provisional best file | Guy R Cochrane |
| Sparker seismic reflection data collected during USGS field activity C109NC offshore of Eureka | sparker | High-resolution sparker seismic-reflection (Seismic) data for the Offshore of Eureka, California, map area is part of USGS Data Series 781 | Guy R Cochrane |
| highlight imagery | imagery | Guy R Cochrane |
