Other ID: FRNL 87-5
Status: Completed
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Funding Program(s):
Principal Investigator(s): Kathryn Scanlon Catanach, William Dillon
Affiliate Investigator(s):
Information Specialist(s):
Data Type(s): Sonar: Sidescan, Seismics: Sub Bottom Profiler, Seismics: Air Gun / Water Gun, Seismics: Boomer, Seismics: Bubble Gun, Seismics: Sparker, Environmental Data: Temperature, Location-Elevation: Navigation, Electro-Magnetic: Magnetics
Scientific Purpose/Goals: This cruise was the fifth in a series of five cruises aimed at surveying the Exclusive Economic Zone (EEZ) of the eastern United States. Permission was granted by the goverment of the Bahamas to extend the survey south into Bahamian waters in order to map prominent geologic features more completely.
Vehicle(s):
Start Port/Location: Norfolk, VA
End Port/Location: Nassau, Bahamas
Start Date: 1987-05-09
End Date: 1987-05-28
Equipment Used: GLORIA sidescan, 3.5 kHz, Air gun, Geomechanique streamer, XBT, ABC navigation system, Geometrics G-856 magnetometer, Northstar 7000 LORAN-C, Megapulse Accufix 500 LORAN-C, Magnavox satellite positioning system
Information to be Derived: Sea floor map; Morphology;
Summary of Activity and Data Gathered: The main survey instrument was GLORIA II, a long-range sidescan sonar system that is well suited to deep-water reconnaissance mapping of large areas. A seismic reflection profiler, magnetometer, and 3.5 and 10 kHz echo sounders were operated simultaneously with the GLORIA system throughout most of the cruise. Superb weather conditions and minimum equipment down time combined to make a most successful cruise. About three days were spent surveying gaps in the previous cruise's coverage. Of the remaining 14 days, 12 were spent surveying the Blake Plateau and Escarpment within the U.S. EEZ and 2 were used to survey the southern extension of the escarpment into Bahamian waters. The GLORIA system was run well into the Northeast Providence Channel before docking at Nassau. Figure 1 shows the ship's tracks for the entire cruise. Preliminary mosaics of the overlapping GLORIA image data were built by hand onboard the ship. A photograph of the southern part of the mosaic, which includes all of the imagery collected in Bahamian waters, is shown in Figure 2. Further corrections and enhancements will be done at the shore facility in Woods Hole where a digital mosaic can be produced. United States Ambassador Hallett held a reception for the Governor General of the Bahamas onboard the FARNELLA at the Nassau dock. The guest list included: Governor General, His Excellency Sir Gerald Cash; His Excellency the British High Commissioner Mr. Mays; Minister of Economic Affairs Alfred Maycock; Commodore Leon Smith, Royal Bahamas Defense Force; Mr. Francis Garraway, Dept. of Lands & Surveys; Mr. Ronald Thompson, Dir., Dept. of Agriculture, Fisheries & Cooperatives; Mr. Colyn Higgs, Dep. Dir., Dept. of Agriculture, Fisheries & Cooperatives; Mrs. Judy Blair, College of the Bahamas, Natural Science Div.; Ms. Joy Chaplin, College of the Bahamas, Natural Science Div.; Mr. Peter Key, Government High School; Mr. Gary Lawson, Bahamas National Trust; Mr. Richard Kench, Ministry of Works; and Mrs. Camille Cartwright, Ministry of Economic Affairs. GLORIA sidescan sonar: 6419 km; Airgun: 6419 km; 3.5 kHz: 6419 km; 10 kHz: 6419 km; XBT: 23; Magnetics: 6419 km.
Staff: Kathryn Scanlon Catanach, Page Valentine, William Dillon
Affiliate Staff:
Linda Sheetz
Renato Diaz
Michael Boyle; Inst. Of Oceanographic Sciences
U.K.: Quentin Huggett
Derek Bishop
Christopher Flewellen
Doriel Jones
Graham Lake
Emma Woodward
Notes: A large part of the survey area is covered by the Blake Plateau, a broad, shallow (800-1200 m) carbonate bank that lies east of Florida and north of Grand Bahama and Great Abaco Islands. The eastern edge of the plateau is bounded by a nearly vertical 3500 m cliff called the Blake Escarpment. Original Center People field contained: William Dillon, Kathy Scanlon, Page Valentine, Linda Sheetz, Renato Diaz, Michael Boyle.
Project = GLORIA Survey, GLORIA Survey
Location:
Hatteras Canyon, Continental slope and rise, North Carolina, South Carolina, Georgia, Florida, Blake Plateau, Blake Escarpment, United States EEZ, Northeast Providence Channel, Bahamas, North America, North Atlantic;
| Boundaries | |||
|---|---|---|---|
| North: 34.75 | South: 25 | West: -79 | East: -71.25 |
Platform(s):
 Farnella |
Chaytor, J.D., Twichell, D.C., ten Brink, U.S., Buczkowski, B.J. and Andrews, B.D., 2007, Revisiting submarine mass movements along the U.S. Atlantic continental margin; implications for tsunami hazards, in V. Lykousis, D. Sakellariou, and J. Locat, eds., Submarine mass movements and their consequences: , Springer, Netherlands. Santorini, Greece, 1-3 October, 2007 URL: https://doi.org/10.1007/978-1-4020-6512-5_41.
Chaytor, J.D., ten Brink, Uri S., Solow, Andrew R., and Andrews, Brian D., 2009, Size distribution of submarine landslides along the U.S. Atlantic margin: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2008.08.007.
Geist, E.L., Lynett, Patrick J., and Chaytor, Jason D., 2009, Hydrodynamic modeling of tsunamis from the Currituck landslide: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2008.09.005.
Lubinski, D., Hughes-Clarke, J., Dillon, W.P., O'Leary, D.W., Popenoe, P., Robb, J.M., and Schmuck, E.A., 1990, Magnetic and bathymetric data from R/V FARNELLA cruises FRNL87-1, 87-2, 87-3, 87-4, and 87-5 in the U.S. Atlantic Margin EEZ, southern Blake Escarpment, and Nova Scotia continental rise: U.S. Geological Survey Open-File Report 90-254, 11 p., URL: https://doi.org/10.3133/ofr90254.
Paskevich, V.F., 1997, Digital mosaics of the GLORIA sidescan sonar data of the U.S. Atlantic East Coast: U.S. Geological Survey Open-File Report 97-853, https://doi.org/10.3133/ofr97853.
Popenoe, P., and Manheim, F.T., 2001, Origin and history of the Charleston Bump--geological formations, currents, bottom conditions, and their relationship to Wreckfish habitats on the Blake Plateau, in Sedberry, G.R., ed., Island in the Stream--Oceanography and Fisheries of the Charleston Bump: American Fisheries Society Symposium, v. 25.
ten Brink, U.S., Barkan, R., Andrews, B.D., and Chaytor, J.D., 2009, Size distributions and failure initiation of submarine and subaerial landslides: Earth and Planetary Science Letters, v. 287 no. 1-2, doi: 10.1016/j.epsl.2009.07.031.
Twichell, D.C., Paskevich, V.F., Delorey, C.M., 1998, GLORIA sidescan-sonar field data and navigation data collected off Puerto Rico in 1985 and the eastern United States in 1987: U.S. Geological Survey Open-File Report 98-619, https://doi.org/10.3133/ofr98619.
Twichell, D.C., Chaytor, Jason D., ten Brink, Uri S., and Buczkowski, Brian, 2009, Morphology of late Quaternary submarine landslides along the U.S. Atlantic continental margin: Marine Geology, v. 264 no. 1-2, doi: 10.1016/j.margeo.2009.01.009.
| Title | Survey Equipment | Description |
|---|---|---|
| Cruise report | (document not focused on specific equipment) | Chief Scientist's report including personnel, cruise objectives, personnel, schedule of delivery for data, and tabulated information. |
| Cruise report | (document not focused on specific equipment) | PDF version of Chief Scientist's report including personnel, cruise objectives, personnel, schedule of delivery for data, and handwritten tabulated information. Also includes a trackmap and some sidescan imagery. |
| Cruise report | (document not focused on specific equipment) | Extensive IOS Party Chief's cruise narrative describing personnel, ship movement, data acquisition, equipment performance, generalized geology, XBT locations, and trackmaps. |
| Data inventory | (document not focused on specific equipment) | Cruise Curator's inventory of field data items with some handwritten notes. |
| XBT locations and plots | XBT | Expendable bathythermograph plots of drops conducted during May 10-27, 1987. |
| GLORIA log | GLORIA sidescan | GLORIA Engineer's log describing equipment performance, data acquisition notes (labeled as Watchstander's Log). |
| Geophysics log | (document not focused on specific equipment) | Watchstander's geophysical log of line and tape changes and comments. Cover indicates MASSCOMP Error log - not present as part of this scan. |
| Computer error log | (document not focused on specific equipment) | Printout of MassComp computer airgun acquisition system tape error log with some handwritten notes. |
| XBT locations | XBT | List of XBT locations for FARNELLA Legs 87-2, 87-3, 87-4, and 87-5 (FAs 87008, 87010, 87015, and 87018). Disk dump printout. |
| Navigation log | (document not focused on specific equipment) | Navigation log including fixes, start and end of line, course changes. |
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| GLORIA sidescan | --- | Sidescan | 1987-018-FA-SO-002 (Digital tape(s) of RAW GLORIA, SEIS, NV-BATHY-MAG, PROCESSED GLORIA, ) 1987-018-FA-SO-001 ( Collection of paper record displays of sidescan sonar data for lines ) 1987-018-FA-SO-003 (CD ROM disk of GLORIA IMAGES, GLORIA ATLANTIC GEOTIFF, GLORIA US EAST COAST GEOTIFF, GLORIA IMAGES, GLORIA/MOSAIC 1-10;TIF,*, GLORIA/MOSAIC 11-23;TIF,*, ) GLORIA sidescan data |
| 3.5 kHz | --- | Sub Bottom Profiler | 1987-018-FA-BA-001 (CD ROM disk of GLORIA IMAGES, GLORIA ATLANTIC GEOTIFF, GLORIA US EAST COAST GEOTIFF, GLORIA IMAGES, GLORIA/MOSAIC 1-10;TIF,*, GLORIA/MOSAIC 11-23;TIF,*, ) NGDC MGD77 data |
| Air gun | --- | Air Gun / Water Gun | |
| Geomechanique streamer | --- | Air Gun / Water Gun | 1987-018-FA-SE-001 (microfilm of ) 1987-018-FA-SE-002-01 (Tape List) 1987-018-FA-SE-002-02 (Raw SEGY seismic data) 1987-018-FA-SE-002 (Digital tape(s) of RAW GLORIA, SEIS, NV-BATHY-MAG, PROCESSED GLORIA, ) |
| XBT | --- | Temperature | |
| ABC navigation system | --- | Navigation | 1987-018-FA-LN-002-01 (Navigation file containing two-minute fixes.
) 1987-018-FA-LN-001-03 (Trackline map colored by leg for FARNELLA cruises 87-1, 87-2, 87-3, 87-4, and 87-5. ) 1987-018-FA-LN-001 (Navigation trackline plot for field activity 87018) 1987-018-FA-LN-001-01 (Trackline map with days and one-hour ticks for 87-5 on 3 sheets.) 1987-018-FA-LN-001-02 (Trackmap for US East Coast FARNELLA cruises 87-1 (FA 87004), 87-2 (FA 87008), 87-3 (FA 87010), 87-4 (FA 87015), and 87-5 (FA 87018).) 1987-018-FA-LN-002 (Digital tape(s) of RAW GLORIA, SEIS, NV-BATHY-MAG, PROCESSED GLORIA, ) Nav data |
| Geometrics G-856 magnetometer | --- | Magnetics | NGDC MGD77 data |
| Northstar 7000 LORAN-C | --- | Navigation | |
| Megapulse Accufix 500 LORAN-C | --- | Navigation | |
| Magnavox satellite positioning system | --- | Navigation |
