Originator: U.S. Geological Survey
Trackline navigation for multi-channel seismic data collected by the U.S. Geological Survey on U.S. Atlantic Seaboard in 2014 (Geographic, WGS84, polyline shapefile 2014-011-FA_seistrk.shp)
Geospatial_Data_Presentation_Form: vector digital data
Series_Name: data release
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Science Center, Woods Hole, MA
Originator: Arsenault, M.A.
Originator: Miller, N.C.
Originator: Hutchinson, D.R.
Originator: Baldwin, W.E.
Originator: Moore, E.M.
Originator: Foster, D.S.
Originator: O'Brien, T.F.
Originator: Fortin, W.F.
Geophysical data collected along the Atlantic continental slope and rise 2014, U.S. Geological Survey Field Activity 2014-011-FA, cruise MGL1407
Series_Name: data release
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Arsenault, M.A., Miller, N.C., Hutchinson, D.R., Baldwin, W.E., Moore, E.M., Foster, D.S., O’Brien, T.F., and Fortin, W.F., 2017, Geophysical data collected along the Atlantic continental slope and rise 2014, U.S. Geological Survey Field Activity 2014-011-FA, cruise MGL1407: U.S. Geological Survey data release, https://doi.org/10.5066/F7V69HHS
In summer 2014, the U.S. Geological Survey conducted a 21-day geophysical program in deep water along the Atlantic continental margin by using R/V Marcus G. Langseth (Field Activity Number 2014-011-FA). The purpose of the seismic program was to collect multichannel seismic reflection and refraction data to determine sediment thickness. These data enable the United States to delineate its Extended Continental Shelf (ECS) along the Atlantic margin. The same data can also be used to understand large submarine landslides and therefore assess their potential tsunami hazard for infrastructure and communities living along the eastern seaboard. Supporting geophysical data were collected as marine magnetic data, gravity data, 3.5-kilohertz shallow seismic reflections, multibeam echo sounder bathymetry, and multibeam backscatter.
The survey was conducted from water depths of approximately 1,500 meters to abyssal seafloor depths greater than 5,000 meters. Approximately 2,761 kilometers of multi-channel seismic data was collected along with 30 sonobuoy profiles.
This field program had two primary objectives: (1) to collect some of the data necessary to establish the outer limits of the U.S. Continental Shelf, or Extended Continental Shelf, as defined by Article 76 of the United Nations Convention of the Law of the Sea and (2) to study the sudden mass transport of sediments down the continental margin as submarine landslides that pose potential tsunamigenic hazards to the Atlantic and Caribbean coastal communities.
More information regarding the field activity can be found in the cruise report:
This shapefile contains trackline navigation for approximately 2,761 kilometers of multi-channel seismic data collected by the U.S. Geological Survey during USGS survey 2014-04-FA. These data were collected off the U.S. Seaboard Atlantic as part of the U.S. Extended Continental Shelf project and investigations of tsunami hazards. Trackline navigation is generally used to aid in interpretation, and loads quicker than multi-point shapefiles.
Currentness_Reference: ground condition
Maintenance_and_Update_Frequency: None planned
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: Marine Geology
Theme_Keyword: field activity number 2014-011-FA
Theme_Keyword: multi-channel seismic
Theme_Keyword: C-NAV 3050
Theme_Keyword: reflection seismic
Theme_Keyword: polyline shapefile
Theme_Keyword: R/V Marcus G. Langseth
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: navigational data
Theme_Keyword: seismic reflection methods
Theme_Keyword: marine geophysics
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: Hudson Canyon
Place_Keyword: Caryn Seamount
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Contact_Person: Nathan C. Miller
Contact_Organization: U.S. Geological Survey
Address_Type: mailing and physical address
Contact_Voice_Telephone: 508-548-8700 x 2293
Address: 384 Woods Hole Road
City: Woods Hole
Image showing trackline navigation for seismic navigation data collected by the U.S. Geological Survey on the R/V Marcus G. Langseth, 2014
Microsoft Windows 7 Enterprise Service Pack 1; ESRI ArcCatalog 10.3
Originator: Lamont-Doherty Earth Observatory
Title: Rolling Deck to Repository (R2R)
Standard data products listed on the Rolling Deck to Repository website include cruise level metadata with an expedition summary including cruise id, vessel, operator, project titles and funding awards, science party, ports, dates, survey targets, and trackline geometry. There is also quality-controlled shiptrack navigation, and scientific sampling event logs. Some post-processed geophysical trackline profiles (underway gravity, magnetics, bathymetry, etc), for vessels equipped with these instrument types; and hydrographic profiles (depth, temperature, salinity, etc from CTD).