1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System

Field Activity 2014-642-FA

Identifier 2014-642-FA
Purpose Collect grain size data across a bedform field
Location Columbia River Estuary
Summary bathy, grainsize data in FAD partition; sample report from sed lab in Samples directory on FAD 9/21/2015
Info derived grain size, bathymetry
Comments Flying eyeball, gopro
Projects
Platform
Parke Snavely
34'
Vehicles
None
Itinerary
Start Illwaco, WA 2014-09-09
End Illwaco, WA 2014-09-13
Days in the field 5
Bounds
West -124.214
East -123.58945041
North 46.3658837
South 46.13689999

Personnel

Organization
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Guy R Gelfenbaum
Crew members
Andrew Stevens
Scientist, Staff
Gerald Hatcher
Scientist, Staff
Jennifer A White
Scientist, Staff
Cordell Johnson
Scientist, Staff
Guy R Gelfenbaum
Scientist, Staff
Information specialist(s)
Andrew Stevens
Specialist, Information
Affiliate principal Andrew Stevens

Data types and categories

Data category: Imagery, Location-Elevation, Sampling, Sonar, Other
Data type: Photo, Navigation, Geology, Sound Velocity

Equipment used

Equipment Usage description Data types Datasets
POS MV Navigation (no data reported)
soundvelocityprofiler Sound Velocity (no data reported)
digitalcamera Photo (no data reported)
Eyeball Photo 2
Van Veen Biology, Geology (no data reported)

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
Digital seafloor images and sediment grain size from the mouth of the Columbia River, Oregon and Washington, 2014 Eyeball This dataset includes 2,523 still images extracted from geo-referenced digital video imagery of the seafloor at the mouth of the Columbia River, OR and WA, USA, along with grain size analysis of the surface sediment. Underwater digital video was collected in September 2014 in the mouth of the Columbia River, USA, as part of the U.S. Geological Survey Coastal and Marine Geology Program contribution to the Office of Naval Research funded River and Inlets Dynamics experiment (RIVET II). Still images were extracted from the underwater video footage whenever the camera was resting on the sediment bed and individual sediment grains were visible and in focus. The images are used to calculate the median grain size through an auto-correlation method (Barnard and other 2007), and are provided in an accompanying .csv file. Guy Gelfenbaum
Sediment grain size and digital image calibration parameters from the mouth of the Columbia River, Oregon and Washington, 2014 Eyeball This dataset includes 63 still images extracted from digital video imagery of sediment grab samples, along with laboratory grain size analysis of the sediment grab samples, taken from the mouth of the Columbia River, OR and WA, USA. Digital video was collected in September 2014 in the mouth of the Columbia River, USA, as part of the U.S. Geological Survey Coastal and Marine Geology Program contribution to the Office of Naval Research funded River and Inlets Dynamics experiment (RIVET II). Still images were extracted from the underwater video footage whenever the camera was resting on the sediment bed and individual sediment grains were visible and in focus. The images were used to calculate the calibration curve through auto-correlation regressed against the results of laboratory-determined median grain size (D50) of the grab samples (Barnard, 2007), provided in an accompanying .csv file. Guy Gelfenbaum

Publications

Gelfenbaum, G.R.; Carlson, E.M.; Stevens, A.W.; and Rubin, D.M., 2017, Digital seafloor images and sediment grain size from the mouth of the Columbia River, Oregon and Washington, 2014: , https://doi.org/10.5066/F7K64G8V.