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Alternate Leg ID: 81-3
Area of Operations: continental shelf between Portsmouth, New Hampshire, and Newburyport, Massachusetts, Gulf of Maine, United States, North America, North Atlantic
Dates: June 19, 1981 to June 30, 1981
Chief scientist: Ken Parolski
Francis S. Birch, Associate Professor of Earth Sciences, University of NH
Objectives: Map glacial and post-glacial sediments and bedrock.
Type of Activity: Seafloor mapping
Information to be derived: Sea Floor Map
Sidescan sonar data
Summary: Uniboom data: 480 km; Sidescan data: 325 km; Magnetics: 150 km; 3.5 kHz data: <100 km. Magnetometer and 3.5 kHz data are of very poor quality because of instrument malfunction.
USGS Project Number:
Contact: Francis S. Birch ()
InfoBank: uses the identifier N-3-81-NH. Visit this site for more information.
| Map for Area of Operations :
| Platform Info: | 
NEECHO |
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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: Comprehensive listing of data items by form: | Inventory # | Data Type | Form | Format | Amount | Source | Nature | Remarks |
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| FD1799-FD1802 | | FOLDER | PROFILE | 4 | SSS | ANALOG | |
| FD1803-FD1805 | | FOLDER | PROFILE | 3 | UNIBOOM | ANALOG | |
| FD1806-FD1808 | | FOLDER | PROFILE | 3 | 3.5K/7K* | ANALOG | *SLAVE,UNI |
| TK0470 | | TRKCHT | MAP | 1 | COMP | PLOT | |
| TK0483-TK0484 | | TRKCHT | MAP | 2 | COMP | PLOT | *+NECH 82-5 COMPOSITE #82021 |
Paper/mylar track lines: | Inventory # | Projection | Scale | Form | Source | Map ID | Number of Maps | Remarks |
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| 470 | ? | 40 | PAPER | PLOT | | | |
| 483 | ? | 20 | PAPER | PLOT | 1 | | EAST HALF |
| 484 | ? | 20 | PAPER | PLOT | 2 | | WEST HALF |
Paper seismic/sidescan bottom profiles: | Inventory # | Lines | Folder | Start Time | End Time | Profile Type | Remarks |
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| 01799 | 3-5 | 001 | 08:30 06/20/1981 | 15:10 06/21/1981 | SSS- | |
| 01799 | 1 | 001 | 14:45 06/19/1981 | 16:00 06/19/1981 | SSS- | |
| 01800 | 6,7 | 002 | 07:56 06/24/1981 | 14:25 06/24/1981 | SSS- | |
| 01801 | | 003 | 08:43 06/27/1981 | 15:20 06/27/1981 | SSS- | |
| 01801 | | 003 | 09:22 06/26/1981 | 15:55 06/26/1981 | SSS- | |
| 01802 | | 004 | 07:40 06/30/1981 | 13:35 06/30/1981 | SSS- | |
| 01802 | | 004 | 07:51 06/28/1981 | 15:30 06/28/1981 | SSS- | |
| 01802 | | 004 | 13:50 06/29/1981 | 15:30 06/29/1981 | SSS- | |
| 01803 | 4,5 | 001 | 08:15 06/21/1981 | 13:00 06/21/1981 | UNI- | |
| 01803 | 3 | 001 | 08:25 06/20/1981 | 14:35 06/20/1981 | UNI- | |
| 01803 | 5 | 001 | 13:05 06/21/1981 | 15:10 06/21/1981 | UNI- | |
| 01803 | 1 | 001 | 11:45 06/19/1981 | 16:20 06/19/1981 | UNI- | |
| 01804 | | 002 | 09:30 06/25/1981 | 16:00 06/26/1981 | UNI- | |
| 01804 | 6,7 | 002 | 07:48 06/24/1981 | 16:10 06/24/1981 | UNI- | |
| 01805 | | 003 | 07:45 06/28/1981 | 11:10 06/29/1981 | UNI- | |
| 01805 | | 003 | 07:35 06/30/1981 | 13:35 06/30/1981 | UNI- | |
| 01805 | | 003 | 07:55 06/27/1981 | 15:25 06/27/1981 | UNI- | |
| 01805 | | 003 | 11:36 06/28/1981 | 15:30 06/28/1981 | UNI- | |
| 01805 | | 003 | 09:50 06/29/1981 | 15:30 06/29/1981 | UNI- | |
| 01805 | | 003 | 07:55 06/23/1981 | 16:05 06/23/1981 | UNI- | |
| 01806 | 2,3 | 001 | 08:20 06/20/1981 | 13:05 06/20/1981 | 3.5K- *SLAVE,UNI | |
| 01806 | | 001 | 09:50 06/19/1981 | 13:25 06/19/1981 | 3.5K- *SLAVE,UNI | |
| 01807 | 3-5 | 002 | 13:35 06/20/1981 | 11:55 06/23/1981 | 7K*- *3.5KHZ | |
| 01808 | TEST | 003 | 10:40 06/29/1981 | 12:49 06/29/1981 | 3.5K- *7K, SLAVE,UNI | |
| 01808 | | 003 | 07:40 06/30/1981 | 13:35 06/30/1981 | 3.5K- *7K, SLAVE,UNI | |
| 01808 | | 003 | 13:09 06/29/1981 | 15:30 06/29/1981 | 3.5K- *7K, SLAVE,UNI | |
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U.S. Department of the Interior |
U.S. Geological Survey