| Identifier | 2000-030-FA | ||||||||
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| Alternate names | IB E-30-00-WA | ||||||||
| Purpose | 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. | ||||||||
| Location | John Day Reservoir, Columbia River, Washington, Oregon, United States, North America; | ||||||||
| Summary | The work was done in cooperation with researchers in the Biological Resources Division in Cook, WA. Sidescan sonar imagery and chirp seismic profiles were collected during the first 8 days and video and sediment sampling was collected during the last 3 days. Most of the lake floor was imaged with the SIS-1000 which was set to scan 750-m to each side. Sub-bottom profiles were collected simultaneously with the sidescan imagery, and also along tie lines in one 10-km stretch of the reservoir. Windy conditions, and the fact that the post-impoundment sediment was usually too thin to resolve seismically, did not warrant extending the length of the cruise to collect more seismic data. Video images were collected at 48 stations in the reservoir, and sediment samples were recovered at 41 stations. Sidescan sonar: 287.7 km; Sub-bottom: 287.7 km; Video transects: 48; Sediment samples: 41; Bottom photos: 130. | ||||||||
| Comments | Original Center People field contained: Electronics technician (Kenneth Parolski - mobilization and equipment operation); Data processor/GIS (VeeAnn Cross - data needed to be processed in the field and integrated with GIS at BRD for collaborative research). Project = SW Washington Coastal Erosion, SW Washington Coastal Erosion | ||||||||
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| Organization |
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
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| Principal investigators | David C Twichell | ||||
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| Affiliate principal | Guy Gelfenbaum (Coastal and Marine program, Western Region); Mike Parsley (BRD, Cook, WA) | ||||
| Affiliate staff | Guy Gelbenbaum, CMP-Menlo Park - geologist; Mike Parsley, BRD-Cook, WA - fisheries biologist; Mindy Sheer, BRD-Cook, WA - GIS expert; Laura Kerr, USGS-Menlo Park - sediment sampling |
| Data category: | Imagery, Location-Elevation, Sampling, Seismics, Sonar |
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| Data type: | Photo, Video, Navigation, Geology, Sub Bottom Profiler, Single Beam, Sidescan |
| Name | Description |
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| Sample log | Station log including sample desciptions and location data of videography transects, bottom still camera shots, and grab samples. |
| Geophysics log | Sidescan and chirp acquisition log with filenames, line numbers, line start and end times, equipment settings, and comments. |
| Navigation log | Hypack navigation log containing line numbers, start and end times, disk numbers, and equipment notations. Also has cruise personnel. |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| SIS1000 Sidescan sonar | Sidescan | (no data reported) | |
| Echosounder | Single Beam | (no data reported) | |
| Video camera - deep sea | Video | 1 | |
| 35 mm camera | Photo | 1 | |
| P-code GPS | Navigation | 1 | |
| SIS1000 Chirp Sonar | Sub Bottom Profiler | 2 | |
| SeaBOSS | Surveys (biological), Experiments (biological), Species ID, Photo, Video, Geology, Biology | 2 |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| 2000-030-FA-VD-001 | Video camera - deep sea | John Day Reservoir Substrate Sampling VHS video tapes: 3 tapes containing sites 1-21, 22-49, 60-74, and 50-59. | Linda P McCarthy |
| 2000-030-FA-PH-001 | 35 mm camera | 35mm still photo prints and negatives from John Day Reservoir Substrate Sampling: 5 rolls covering stations 1-48. | David C Twichell |
| Nav data | P-code GPS | Linda P McCarthy | |
| 2000-030-FA-SE-001 | SIS1000 Chirp Sonar | Raw SEGY data | Nancy K. Soderberg |
| Chirp seismic data | SIS1000 Chirp Sonar | Linda P McCarthy | |
| 2000-030-FA-NL-001-01 | SeaBOSS | Station log including sample desciptions and location data of videography transects, bottom still camera shots, and grab samples. | Nancy K. Soderberg |
| 2000-030-FA-SC-001 | SeaBOSS | grab samples | Brian Buczkowski |
