| Identifier | 1981-006-FA | ||||||||
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| Alternate names | WF 81-1 | ||||||||
| Purpose | Evaluate sand wave migration rates in a small area on Georges Bank. | ||||||||
| Location | Georges Bank, United States, North America, North Atlantic, | ||||||||
| Summary | WHITEFOOT 81-1 cruise was the final of 3 cruises conducted to evaluate sandwave migration rates in a small area (about 1.5 x 2.0 km) on Georges Bank. During this cruise two of the three transponders deployed on WF 80-2 (FA 80015) and WF 80-3 (FA 80026) were enabled. The third could not be enabled, so one transponder was deployed. The three transponders were surveyed in to establish the navigation grid, then the survey was conducted using sidescan sonar and 3.5 kHz echo sounding techniques. After completing the survey, the three transponders were recovered and the transponder which could not be enabled was lost. In addition to the detailed survey, some widely spaced lines were run to obtain an understanding of the setting of the study area. 3.5 kHz data: 199 km; Sidescan data: 199 km. | ||||||||
| Info derived | Sea floor map; | ||||||||
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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 | ||
| Crew members |
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| Affiliate staff | Andrew Eliason - Eliason Data Services, Greg Miller - Eliason Data Services |
| Data category: | Sonar, Seismics, Location-Elevation |
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| Data type: | Sidescan, Sub Bottom Profiler, Navigation |
| Name | Description |
|---|---|
| Cruise report | Chief Scientist's cruise report of personnel, data collection, equipment notes, ship movement, and trackmaps. |
| Equipment | Usage description | Data types | Datasets |
|---|---|---|---|
| Klein 531 sidescan | Sidescan | 2 | |
| ORE 140 transceiver/1036 transducer sub-bottom profiler | Sub Bottom Profiler | 4 | |
| Northstar 6000 LORAN-C | Navigation | 3 | |
| ATNAV acoustic transponder | Navigation | (no data reported) |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| 1981-006-FA-SO-001 | Klein 531 sidescan | microfilm of | Nancy K. Soderberg |
| 1981-006-FA-SO-002 | Klein 531 sidescan | analog tape of seismic data | Nancy K. Soderberg |
| 1981-006-FA-SE-001 | ORE 140 transceiver/1036 transducer sub-bottom profiler | Collection of paper record displays of seismic data( 3.5K) for lines | Nancy K. Soderberg |
| 1981-006-FA-SE-002 | ORE 140 transceiver/1036 transducer sub-bottom profiler | microfilm of | Nancy K. Soderberg |
| 1981-006-FA-SE-003 | ORE 140 transceiver/1036 transducer sub-bottom profiler | analog tape of seismic data | Nancy K. Soderberg |
| 1981-006-FA-SE-004 | ORE 140 transceiver/1036 transducer sub-bottom profiler | analog tape of seismic data | Nancy K. Soderberg |
| 1981-006-FA-LN-001 | Northstar 6000 LORAN-C | Navigation trackline plot for field activity 81006 | Nancy K. Soderberg |
| 1981-006-FA-LN-002 | Northstar 6000 LORAN-C | Digital tape(s) of NV, NV-NSTAR, NV-NSTAR-FINAL, NV-ATNAV, | Nancy K. Soderberg |
| 1981-006-FA-LN-002-01 | Northstar 6000 LORAN-C | Navigation data recovered from 9 track tape | Nancy K. Soderberg |
