Multibeam echo sounder - GeoTIFF grids for processed Reson 7160 seafloor bathymetry data collected during USGS field activities 2017-001-FA and 2017-002-FA.

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 20200409
Title:
Multibeam echo sounder - GeoTIFF grids for processed Reson 7160 seafloor bathymetry data collected during USGS field activities 2017-001-FA and 2017-002-FA.
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y1MSTN
Publication_Information:
Publication_Place:
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P9Y1MSTN
Online_Linkage:
https://www.sciencebase.gov/catalog/item/5e7d1495e4b01d5092751d95
Larger_Work_Citation:
Citation_Information:
Originator: Wayne E. Baldwin
Originator: Eric M. Moore
Originator: Charles R. Worley
Originator: Alex R. Nichols
Originator: Carolyn D. Ruppel
Publication_Date: 2020
Title:
Marine Geophysical Data Collected to Support Methane Seep Research Along the U.S. Atlantic Continental Shelf Break and Upper Continental Slope Between the Baltimore and Keller Canyons During U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA.
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y1MSTN
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Baldwin, W.E., Moore, E.M., Worley, C.R., Nichols, A.R., and Ruppel, C.D., 2020, Marine Geophysical Data Collected to Support Methane Seep Research Along the U.S. Atlantic Continental Shelf Break and Upper Continental Slope Between the Baltimore and Keller Canyons During U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9Y1MSTN.
Online_Linkage: https://doi.org/10.5066/P9Y1MSTN
Online_Linkage:
https://www.sciencebase.gov/catalog/item/5e179176e4b0ecf25c59f97a
Description:
Abstract:
In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field activity 2017-001-FA, was conducted from May 4 to May 11, 2017, and acquired geophysical data to support remotely operated vehicle exploration of seep sites using the Global Explorer, which is operated by Oceaneering International, Inc. Geophysical operations during cruise 2017-002-FA from August 25 to September 6, 2017, were also focused on mapping water column methane plumes, sea-floor seep sites, and subseafloor strata, but primarily supported conductivity, temperature, and depth instrument deployment, surface-water methane-concentration mapping, and water-sampling operations as part of a collaborative study with the University of Rochester of the effect of methane seepage on ocean water biogeochemistry. The National Oceanic and Atmospheric Administration’s Office of Ocean Exploration and Research partially sponsored cruise 2017-001-FA, and the U.S. Department of Energy partially sponsored both cruises.
Purpose:
These GeoTIFF grids represent the processed Reson 7160 multibeam echo sounder seafloor bathymetry data collected by the U.S. Geological Survey during USGS field activities 2017-001-FA and 2017-002-FA along the U.S. Atlantic continental shelf break and upper slope between Accomac and Keller Canyons. The data depict seafloor bathymetry associated with shelf-edge, submarine canyon, and upper slope environments in which seafloor methane seeps have been identified. The data are intended to be used in conjunction with other geophysical, ROV dive imagery, and geologic sample data to investigate sea-floor morphology and geologic framework associated with sites of methane seepage.
Supplemental_Information:
Support for 2017-001-FA was provided to the USGS by NOAA and DOE through interagency agreements 16-01118 and DE-FE0023495, respectively. Support for 2017-002-FA was provided to the USGS and the University of Rochester by DOE through interagency agreement DE-FE0026195 and grant DE-FE0028980, respectively. Additional information on the field activities are available from https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-001-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-002-FA. Additional information specific to the Interagency Mission for Methane Research on Seafloor Seeps is available at https://www.usgs.gov/centers/whcmsc/science/immerss-interagency-mission-methane-research-seafloor-seeps?qt-science_center_objects=0#qt-science_center_objects and https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2017/05/outreach.html.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20170509
Ending_Date: 20170906
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.873341
East_Bounding_Coordinate: -74.009451
North_Bounding_Coordinate: 37.859121
South_Bounding_Coordinate: 35.497230
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5e7d1495e4b01d5092751d95
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Department of the Interior
Theme_Keyword: DOI
Theme_Keyword:
National Oceanic and Atmospheric Administration - Office of Ocean Exploration and Research
Theme_Keyword: NOAA-OER
Theme_Keyword: Department of Energy
Theme_Keyword: DOE
Theme_Keyword: University of Rochester
Theme_Keyword: field activity number 2017-001-FA
Theme_Keyword: HRS1704
Theme_Keyword: Interagency Mission for Methane Research on Seafloor Seeps
Theme_Keyword: IMMeRSS
Theme_Keyword: field activity number 2017-002-FA
Theme_Keyword: HRS1713
Theme_Keyword: R/V Hugh R. Sharp
Theme_Keyword: GeoTIFF
Theme_Keyword: multibeam echo sounder
Theme_Keyword: multibeam bathymetry
Theme_Keyword: Reson
Theme_Keyword: 7160
Theme_Keyword: Reson s7k format
Theme_Keyword: HYPACK HYSWEEP HSX and 7K formats
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: multibeam sonar
Theme_Keyword: bathymetry
Theme_Keyword: marine geophysics
Theme_Keyword: marine geology
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States of America
Place_Keyword: Atlantic Ocean
Place_Keyword: Atlantic Margin
Place_Keyword: Accomac Canyon
Place_Keyword: Washington Canyon
Place_Keyword: Norfolk Canyon
Place_Keyword: Keller Canyon
Place_Keyword: Chincoteague Ridge
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sea floor
Stratum_Keyword: seafloor
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: 2017
Access_Constraints: none
Use_Constraints:
These data are not to be used for navigation. Mariners should refer to the appropriate nautical chart. Public domain data from the U.S. Government are freely distributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the data set.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne E. Baldwin
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543-1598
Country: US
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
https://www.sciencebase.gov/catalog/file/get/5e7d1495e4b01d5092751d95/?name=2017-001-FA_2017-002-FA_7160Bathymetry_browse.jpg
Browse_Graphic_File_Description: Example MBES bathymetry imagery from around Keller Canyon.
Browse_Graphic_File_Type: JPG
Cross_Reference:
Citation_Information:
Originator: Demopoulos, A.
Originator: McClain-Counts, J.
Originator: Bourque, J.
Originator: Prouty, N.
Originator: Smith, B.
Originator: Brooke, S.
Originator: Ross, S.
Originator: Ruppel, C.
Publication_Date: 2019
Title:
Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models.
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Deep Sea Research Part I
Issue_Identification: 148, pp.53-66
Publication_Information:
Publication_Place: Amsterdam, Netherlands
Publisher: Elsevier
Online_Linkage: https://doi.org/10.1016/j.dsr.2019.04.002
Cross_Reference:
Citation_Information:
Originator: Leonte, M.
Originator: Ruppel, C. D.
Originator: Ruiz‐Angulo, A.
Originator: Kessler, J. D.
Publication_Date: 2020
Title:
Surface methane concentrations along the Mid‐Atlantic Bight driven by aerobic subsurface production rather than seafloor gas seeps.
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Journal of Geophysical Research: Oceans
Issue_Identification: vol. 125
Publication_Information:
Publication_Place: Washington, DC
Publisher: American Geophysical Union Publications
Online_Linkage: https://doi.org/10.1029/2019JC015989
Cross_Reference:
Citation_Information:
Originator: Ruppel, C.
Originator: Demopoulos, A.
Originator: Prouty, N.
Publication_Date: 2018
Title:
Exploring US Mid-Atlantic Margin Methane Seeps: IMMeRSS, May 2017.
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Supplement to Oceanography
Issue_Identification: 31(1), p.93
Publication_Information:
Publication_Place: Rockville, MD
Publisher: The Oceanography Society
Online_Linkage: https://doi.org/10.5670/oceanog.2018.supplement.01
Data_Quality_Information:
Logical_Consistency_Report:
These GeoTIFF rasters represent processed Reson 7160 multibeam echo sounder (MBES) seafloor bathymetry data gridded at a 25-m resolution. Quality control and data processing were conducted to remove spurious points and reduce sound speed artifacts (refraction) using Computer Aided Resource Information System (Caris) Hydrographic Information Processing System (HIPS; versions 9 and 10.4). While the navigation and attitude data in the bathymetry data and accompanying backscatter data available from the larger work citation (https://www.sciencebase.gov/catalog/item/5e179176e4b0ecf25c59f97a) are identical, the extents of the processed bathymetry grids and backscatter mosaics differ slightly due to differences in processing.
Completeness_Report:
Most of the MBES bathymetry collected along tracklines included in '2017-001-FA_2017-002-FA_7160Tracklines' were used to produce these raster grids. The sole exceptions were exclusion of data from HSX files 20170826_010146_000_0101, 20170826_010810_000_0108, 20170826_010928_000_0109, 20170826_014853_000_0148, 20170826_022534_000_0225, 20170826_025823_000_0258, and 20170826_034104_000_0341 and the s7k file 20170827_081525 from '2017-001-FA_2017-002-FA_7160Bathymetry_BetweenWashingtonAndAccomacCanyons_25m.tiff'.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation data were acquired using the WGS 84 coordinate system with an Applanix POS MV Wavemaster (model 220, v5), which blends Global Navigation Satellite System (GNSS) and acceleration data from an Inertial Motion Unit (IMU) and GPS azimuthal heading. The POS MV was configured with two Trimble GPS antennas located at either end of a 2-m baseline, which was oriented fore and aft and mounted atop the MBES pole just aft of the bosun's locker on the port side of vessel. GPS positions were obtained from the primary antenna located on the forward end of the baseline, and the positional offsets between the antenna and the navigational reference point (the POS MV IMU) were accounted for in the Applanix POSView (version 8.60) acquisition software. Positions from the POS MV are assumed to be horizontally accurate to 3 meters.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
On the basis of overlap comparison with existing MBES coverage in the study area, we conservatively estimate that vertical accuracy of the processed data are within approximately 1 percent of water depth (4.9 to 12.7 m within the area covered by these grids). The Applanix Wavemaster POS MV Attitude and Positioning system, used to correct for vessel roll, pitch, heave, and yaw, has a theoretical vertical accuracy of a few mm and thus aids in removing spurious artifacts that may be caused by motion. Processed soundings are referenced to instantaneous sea level and no tidal corrections have been applied. Sound speed profiles (see shapefile '2017-001-FA_2017-002-FA_SVPdata.shp' available from the larger work citation) collected using Sippican T4 and T5 Expendable Bathythermograph probes and Seabird Electronics 911plus CTD casts were used during post-processing to minimize acoustic refraction artifacts in the bathymetry data. Changes in ship draft due to water and fuel usage were not considered.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: raw MBES data in s7k and HSX formats
Geospatial_Data_Presentation_Form: digital data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20170509
Ending_Date: 20170906
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Reson 7160 multibeam echo sounder data
Source_Contribution:
Multibeam echo sounder seafloor bathymetry and backscatter and water column backscatter data were collected using a Reson 7160 (44 kHz center frequency, 512 beams, 1.5 x 2 degree across- and along-track beam widths, respectively). The Mills Cross transmit and receive transducer arrays were pole-mounted on the port side of the R/V Hugh R Sharp just aft of the Bosun's locker with the transducers positioned approximately 2.8 m below the waterline when deployed. Vessel navigation and attitude data were acquired with an Applanix POS MV Wavemaster (model 220, v5) configured with two Trimble GPS antennas located at either end of a 2-m baseline oriented fore and aft and mounted atop the MBES pole, and the wet pod IMU mounted atop the sonar bracket just aft of the pole. An AML Micro X SV mounted on the sonar bracket monitored sound speed in water near the sonar during acquisition, and water column sound speed profiles were collected using Sippican T4 and T5 Expendable Bathythermograph probes and Seabird Electronics 911plus CTD casts at various points during both cruises (see shapefile '2017-001-FA_2017-002-FA_SVPdata.shp' available from the larger work citation). The Reson SeaBat User Interface (version 4.0.0.10) was used to control the sonar, which was operated primarily in FM mode at various power levels throughout the cruises. The range of the 512 across-track beams formed by the sonars were adjusted manually depending on water depth. Data were monitored and recorded using the Reson SeaBat User Interface (version 4.0.0.10) and HYPACK HYSWEEP (version 2017, 17.1.3.0). The SeaBat User Interface logged navigation, attitude, bathymetry, time-series backscatter, and water column data to s7k format files. HYPACK HYSWEEP logged navigation, attitude, and bathymetry data to HSX format files, and navigation, attitude, and time series backscatter data to 7K format files. Patch test calibrations were performed during each field activity to determine possible misalignments between the MBES and POS MV reference frames or systematic timing latencies.
Process_Step:
Process_Description:
Shipboard multibeam bathymetry processing within Caris HIPS (version 9) consisted of the following flow:
1) Caris HIPS projects were created to process 7160 data. Projection information was set to Universal Transverse Mercator (UTM) Zone 18N, WGS 84.
2) Vessel configuration files were created in the Caris projects for the R/V Hugh R. Sharp, which included relevant linear and angular installation offsets for the 7160 installation as well as vendor specified uncertainty values for each of the survey sensors.
3) Raw files were imported to the Caris projects using the Import/Conversion Wizard.
4) Delayed heave and navigation data (navigation only loaded for HSX data used from JD238 of 2017-002-FA) from raw POS MV files were used to update HIPS survey lines using the import auxiliary data function.
5) Navigation was reviewed and edited as needed using the Navigation Editor tool.
6) Sound velocity correction was applied using the Caris algorithm, a master SVP file containing all the sound velocity profiles collected during the cruise and specifying the nearest in distance method, delayed heave source, and use surface sound speed.
7) Data were merged selecting no tide and the delayed heave source.
8) 25-m resolution swath-angle surfaces were created to incorporate files for each area as they were processed, and data were reviewed for inconsistencies and anomalies. Shipboard processing was primarily focused on QA/QC during acquisition.
This process step and all subsequent process steps were conducted by Eric Moore and Wayne Baldwin, though Baldwin is listed as the contact.
Process_Date: 2017
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne Baldwin
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
Post-cruise multibeam bathymetry processing within Caris HIPS (version 10.4) consisted of the following flow:
1) The swath and subset editors were used to remove spurious points through manual editing and filter application, and the refraction editor was used to adjust sound speed values in areas where sound velocity data did not adequately correct depth profiles obviously influenced by local anomalies in speed of sound through the water column.
2) Survey lines adjusted for refraction anomalies were remerged, and the respective surfaces were recomputed to reflect the changes. Editing processes required trial and error, and were at times iterative.
3) The final edited swath angle surfaces were exported from HIPS as 25-m per pixel 32-Bit floating-point GeoTIFF files (UTM Zone 18N, WGS 84)
Process_Date: 201910
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200806
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18N
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -75
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 25
Ordinate_Resolution: 25
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: instantaneous sea level
Depth_Resolution: 0.1
Depth_Distance_Units: meters
Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label:
2017-001-FA_2017-002-FA_7160Bathymetry_BetweenWashingtonAndAccomacCanyons_25m.tiff
Entity_Type_Definition:
32-Bit floating-point GeoTIFF image of processed Reson 7160 MBES bathymetry collected between Washington and Accomac Canyons during USGS field activities 2017-001-FA and 2017-002-FA.
Entity_Type_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2017-002-FA_7160Bathymetry_AroundNorfolkCanyon_25m.tiff
Entity_Type_Definition:
32-Bit floating-point GeoTIFF image of processed Reson 7160 MBES bathymetry collected around Norfolk Canyon during USGS field activity 2017-002-FA.
Entity_Type_Definition_Source: U.S. Geological Survey
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2017-002-FA_7160Bathymetry_AroundKellerCanyon_25m.tiff
Entity_Type_Definition:
32-Bit floating-point GeoTIFF image of processed Reson 7160 MBES bathymetry collected around Keller Canyon during USGS field activity 2017-002-FA.
Entity_Type_Definition_Source: U.S. Geological Survey
Overview_Description:
Entity_and_Attribute_Overview:
Bathymetric values in the 32-bit GeoTIFF grids are in meters relative to instantaneous sea level. '2017-001-FA_2017-002-FA_7160Bathymetry_BetweenWashingtonAndAccomacCanyons_25m.tiff' consists of 1175 columns and 1583 rows, and has minimum and maximum elevations of -1227 and -152.5 meters, respectively. '2017-002-FA_7160Bathymetry_AroundNorfolkCanyon_25m.tiff' consists of 686 columns and 1627 rows, and has minimum and maximum elevations of -680.8 and -89.4 meters, respectively. '2017-002-FA_7160Bathymetry_AroundKellerCanyon_25m.tiff' consists of 407 columns and 1131 rows, and has minimum and maximum elevations of -1019.9 and -49.1 meters, respectively.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Federal Center
Address: Building 810
Address: Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Resource_Description:
USGS data release of processed Reson 7160 MBES seafloor bathymetry grids collected along the U.S. Atlantic continental shelf break and upper slope between Accomac and Keller Canyons during USGS field activities 2017-001-FA and 2017-002-FA: includes the 32-Bit floating-point GeoTIFF images '2017-001-FA_2017-002-FA_7160Bathymetry_BetweenWashingtonAndAccomacCanyons_25m.tiff', '2017-002-FA_7160Bathymetry_AroundNorfolkCanyon_25m.tiff', and '2017-002-FA_7160Bathymetry_AroundKellerCanyon_25m.tiff', the browse graphic '2017-001-FA_2017-002-FA_7160Bathymetry_browse.jpg', and the Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata file 2017-001-FA_2017-002-FA_7160Bathymetry_meta.xml.
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Version_Number: Caris HIPS (version 10.4)
Format_Specification: 32-bit GeoTIFF
Format_Information_Content:
Three 32-Bit floating-point GeoTIFF grids of processed Reson 7160 MBES bathymetry collected along the U.S. Atlantic continental shelf break and upper slope between Accomac and Keller Canyons during USGS field activities 2017-001-FA and 2017-002-FA.
File_Decompression_Technique: none
Transfer_Size: 1.5
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://www.sciencebase.gov/catalog/item/5e7d1495e4b01d5092751d95
Network_Resource_Name:
https://www.sciencebase.gov/catalog/file/get/5e7d1495e4b01d5092751d95
Network_Resource_Name: https://doi.org/10.5066/P9Y1MSTN
Access_Instructions:
The first link is to the page containing the data. The second is a direct link to download all data available from the page as a zip file. The final link is to the publication landing page. The data page (first link) may have additional data access options, including web services.
Fees: none
Technical_Prerequisites:
To utilize these data, the user must have geographic information system or similar software capable of displaying 32-bit GeoTIFF grid files.
Metadata_Reference_Information:
Metadata_Date: 20240319
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne E. Baldwin
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240319)
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/SB_data_release/DR_P9Y1MSTN/2017-001-FA_2017-002-FA_7160Bathymetry_meta.html>
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