| On-Line Data Resources: | Report | Navigation | GIS | Archive | Geophysics | Sidescan |
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| Metadata | Samples | Photography | Time-series | Seismics | Publications |
Alternate Leg ID: IB E-30-00-WA Area of Operations: John Day Reservoir, Columbia River, Washington, Oregon, United States, North America Dates: September 13, 2000 to September 28, 2000 Objectives: High-resolution seismic reflection, sidescan mapping, and sediment sampling of reservoir floor to determine the amount, distribution and types of sediment being trapped. These data are important to understanding changes in salmon spawning grounds and to quantifying changes in sediment supply to the coast. Type of Activity: Sampling Information to be derived: Grain size analysis Summary: Sidescan sonar: 287.7km; Sub-bottom: 287.7km; Video transects: 48; Sediment samples: 41; Bottom photos: 130 USGS Project Number: 7440-33780 Contact: Dave Twichell (dtwichell@usgs.gov) InfoBank: uses the identifier E-30-00-WA. Visit this site for more information. |
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| Related Resources: | Station Descriptions | Seismic Line Descriptions | Track Plot | Related Web Site |
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The following materials for this field activity are available in the Information Archives:
Data and publications on CD-ROM/DVD-ROM:
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