Field Activity 2009-034-FA

Identifier 2009-034-FA
Alternate names 09CCT02, G-2-09-GM; 09CCT03, C-3-09-GM
Purpose Sea floor mapping.
Location Mississippi/Alabama coast, Gulf of America (Gulf of Mexico), United States, North America, North Atlantic;
Summary The 2009 survey of the Mississippi/Alabama barrier islands collected swath bathymetry, backscatter imagery, and chirp sub-bottom profiles both offshore and behind the islands. The survey focused on two areas: the nearshore area surrounding Cat Island, and the nearshore area around the eastern half of Horn Island eastward to the western end of Dauphin Island. The data were collected from two platforms: the CAT BOAT, and the GILBERT. The Cat Island survey was completed between June 21-23 aboard the CAT BOAT. Swath data were collected along 176 km of track lines and chirp data along 172 km of tracklines. The Horn to Dauphin Island survey was completed using both the CAT BOAT and the GILBERT. The CAT BOAT surveyed this area between June 14 and June 20. Swath and Chirp data were collected along 377 km of trackline. The GILBERT surveyed this area between June 28 and July 1 and collected 254 km of swath data and 252 km of chirp data.
Comments Original Center People field contained: Elizabeth Pendleton, Data processing (June 21 - July 2). Project = Geologic Framework of Eastern Louisiana, Geologic Framework of Eastern Louisiana Information from Foghorn: All equipment provided by USGS-St. Petersburg;
Platform
Cat Boat
G.K. Gilbert
40'
Itinerary
Start Moss Point, MS 2009-06-14
End Moss Point, MS 2009-07-01
Days in the field 18
Bounds
West -89.176
East -88.26416
North 30.33021
South 30.11187

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators David C Twichell
Crew members
Elizabeth P Pendleton
Scientist, Staff
Information specialist(s)
David C Twichell
Specialist, Information
Affiliate principal Jim Flocks, USGS-St. Pete - Chief Scientist
Affiliate staff USGS-St. Petersburg: Jim Flocks - Chief scientist, Dana Wiese - Electronics tech., Rich Young - GILBERT Captain, Nancy DeWitt - CAT BOAT skipper, Shawn Dadisman - Data processor

Data types and categories

Data category: Location-Elevation, Seismics, Sonar
Data type: Navigation, Sub Bottom Profiler, Interferometric

Equipment used

Equipment Usage description Data types Datasets
Real Time Kinematic GPS Navigation (no data reported)
EdgeTech 424 chirp sub-bottom profiler Sub Bottom Profiler (no data reported)
SEA SWATHplus-H 468 kHz Interferometric (no data reported)

Publications

Samples collected during this field activity