| Identifier | 1999-002-FA | ||||||||
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| Alternate names | G199GM | ||||||||
| Purpose | Collection of regional high-resolution multichannel seismic data and Huntec seismic data as well as two detailed sidescan surveys to understand the distribution of gas hydrates on the upper continental slope in the Gulf of Mexico and their effect on sea floor processes. | ||||||||
| Location | Gulf of Mexico, United States, North America, North Atlantic; | ||||||||
| Summary | Not all the gear was run all the time, so the amounts of individual data types (in km) are as listed: High-resolution MCS data - 1400 km; Huntec boomer data - 900 km; SIS-1000 sidescan and Chirp sub-bottom data - 500 km. | ||||||||
| Info derived | Seismic images of the gas hydrate stability zone and near surface geologic hazards; side-scan images of the sea floor | ||||||||
| Comments | seismic rolls at PCMSC G199GM Scanned data on FAD; G199GM Original Center People field contained: Chris Anton, watchstander; Bill Danforth, sidescan processing; Dave Foster, seismic processing; Barry Irwin, nav. tech.; Dave Nichols, electronics tech; Tom O'Brien, electronics tech. Project = Gulf of Mexico Tectonics and Hydrates Projects, Gulf of Mexico Tectonics and Hydrates Projects | ||||||||
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| Itinerary |
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| Bounds |
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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 | Alan Cooper, USGS, Menlo Park Dave Twichell | ||||||||
| Affiliate staff | USGS, Menlo Park - Jeff Brody, watchstander; Pat Hart, seismic processor; Larry Kooker, electronics tech; Walt Olson, mechanical tech; Hal Williams, mechanical tech. Graham Standen - Geoforce, Inc. |
| Data category: | Location-Elevation, Seismics, Sonar |
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| Data type: | Sub Bottom Profiler, Navigation, Transects, Boomer, Multichannel, Sidescan |
| Name | Description |
|---|---|
| ISIS log | ISIS system log of file and line changes, data collection notes. |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| SIS1000 Chirp Sonar | Sub Bottom Profiler | 1 | |
| SIS1000 Sidescan sonar | Sidescan | 1 | |
| Multichannel seismics | Multichannel | 2 | |
| Benthos 7000 | Navigation, Transects | (no data reported) | |
| DGPS | Navigation | (no data reported) | |
| Other | Unknown, Multichannel, Boomer, Sub Bottom Profiler, Sparker, Bubble Gun, Air Gun / Water Gun, Ocean Bottom Seismometer, Sonobuoy | (no data reported) | |
| Boomer | Boomer | (no data reported) | |
| Single channel hydrophone | Air Gun / Water Gun, Boomer, Bubble Gun, Sparker, Sub Bottom Profiler | (no data reported) |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Chirp seismic data | SIS1000 Chirp Sonar | Linda P McCarthy | |
| Sidescan mosaic | SIS1000 Sidescan sonar | Linda P McCarthy | |
| 1999-002-FA-SE-001 | Multichannel seismics | Raw SEGY data | Nancy K. Soderberg |
| paper records | Multichannel seismics | PCMSC data holdings | David C Twichell |
