Bathymetry of the Hudson Canyon region (100-m resolution Esri binary grid and 32-bit GeoTIFF, Mercator, WGS 84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2017
Title:
Bathymetry of the Hudson Canyon region (100-m resolution Esri binary grid and 32-bit GeoTIFF, Mercator, WGS 84)
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F77H1GSF
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/F77H1GSF
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Bradford Butman
Originator: William W. Danforth
Originator: David C. Twichell
Originator: Peter A. Rona
Publication_Date: 2017
Title:
Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F77H1GSF
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Butman, Bradford, Danforth, W.W., Twichell, D.C., and Rona, P.A., 2017, Bathymetry, backscatter intensity, and geomorphology of the sea floor of the Hudson Canyon and adjacent slope and rise: U.S. Geological Survey data release, https://doi.org/10.5066/F77H1GSF.
Online_Linkage: https://doi.org/10.5066/F77H1GSF
Description:
Abstract:
The Hudson Canyon begins on the outer continental shelf off the east coast of the United States at about 100-meters (m) water depth and extends offshore southeastward across the continental slope and rise. A multibeam survey was carried out in 2002 to map the bathymetry and backscatter intensity of the sea floor of the Hudson Canyon and adjacent slope and rise. The survey covered an area approximately 205 kilometers (km) in the offshore direction, extending from about 500 m to about 4,000 m water depth, and about 110 km in the alongshore direction, centered on the Hudson Canyon. The sea floor was mapped using a SeaBeam Instruments 2112 multibeam echosounder aboard the National Oceanic and Atmospheric Administration (NOAA) ship Ronald H. Brown. Maps derived from the multibeam observations show sea-floor bathymetry and backscatter intensity (a measure of sea floor texture and roughness), geomorphic provinces, and sea-floor environments (Butman and others, 2006). The sea floor was mapped by the U.S. Geological Survey in cooperation with Rutgers University and with support from NOAA.
Purpose:
The bathymetry shows the shape of the sea floor. Of particular interest are the shape of the canyon and features that may indicate sediment deposition or transport.
Supplemental_Information:
Maps and interpretations of the multibeam echosounder data from the 2002 multibeam survey of the sea floor of the Hudson Canyon region are published in Butman and others (2006) (see cross reference). This publication includes the previously unpublished digital multibeam data and interpretations with FGDC-compliant metadata (CSDGM format). The data were collected on Woods Hole Coastal and Marine Science Center field activity 2002-050-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2002-050-FA). Other datasets from the 2002 survey may be found in Butman and others (2017) (see larger work citation). Andrews and others (2013) (see cross reference) present a bathymetric terrain model for the Atlantic margin which includes the Hudson Canyon region.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020827
Ending_Date: 20020915
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.517632
East_Bounding_Coordinate: -70.071320
North_Bounding_Coordinate: 39.845514
South_Bounding_Coordinate: 37.610358
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:58fa5e8de4b0b7ea54525642
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: bathymetry
Theme_Keyword: Esri binary grid
Theme_Keyword: sea floor mapping
Theme_Keyword: multibeam
Theme_Keyword: SeaBeam Instruments 2112 multibeam
Theme_Keyword: NOAA ship Ronald H. Brown
Theme_Keyword: RB0207
Theme_Keyword: WHCMSC field activity 2002-050-FA
Theme_Keyword: National Oceanic and Atmospheric Administration (NOAA)
Theme_Keyword: Woods Hole Coastal and Marine Science Center (WHCMSC)
Theme_Keyword: Coastal and Marine Geology Program (CMGP)
Theme_Keyword: U.S. Geological Survey (USGS)
Theme_Keyword: Rutgers Institute of Coastal and Marine Sciences
Theme_Keyword: USGS Open-File Report 2004-1441
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: elevation
Theme_Keyword: geoscientificInformation
Theme_Keyword: imageryBaseMapsEarthCover
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Theme_Keyword: marine geophysics
Theme_Keyword: ocean sciences
Theme_Keyword: bathymetry
Theme_Keyword: bathymetry measurement
Theme_Keyword: multibeam sonar
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Hudson Canyon
Place_Keyword: New York Bight
Place_Keyword: Middle Atlantic Bight
Place_Keyword: North Atlantic Ocean
Stratum:
Stratum_Keyword_Thesaurus: none
Stratum_Keyword: sea floor
Stratum_Keyword: seafloor
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: 2002
Access_Constraints: None
Use_Constraints: These data are not to be used for navigation purposes.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Bradford Butman
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2212
Contact_Electronic_Mail_Address: bbutman@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description: Browse graphic of the bathymetry of the Hudson Canyon region.
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Cross_Reference:
Citation_Information:
Originator: Butman, Bradford
Originator: Twichell, D.C.
Originator: Rona, P.A.
Originator: Tucholke, B.E.
Originator: Middleton, T.J.
Originator: Robb, J.R.
Publication_Date: 2006
Title:
Sea floor topography and backscatter intensity of the Hudson Canyon region offshore of New York and New Jersey
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2004-1441
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2004/1441/
Cross_Reference:
Citation_Information:
Originator: Butman, Bradford
Originator: Middleton, T.J.
Originator: Thieler, E.R.
Originator: Schwab, W.C.
Publication_Date: 2003
Title:
Topography, shaded relief and backscatter intensity of the Hudson Shelf Valley, offshore of New York
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 03-372
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2003/of03-372/
Cross_Reference:
Citation_Information:
Originator: Andrews, B.D.
Originator: Chaytor, J.D.
Originator: ten Brink, U.S.
Originator: Brothers, D.S.
Originator: Gardner, J.V.
Publication_Date: 2013
Title:
Bathymetric terrain model of the Atlantic margin for marine geological investigations
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1266
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2012/1266/
Cross_Reference:
Citation_Information:
Originator: Clarke, J.H.
Publication_Date: 1998
Title: SwathEd
Publication_Information:
Publication_Place: New Brunswick, Canada
Publisher: Ocean Mapping Group, University of New Brunswick
Online_Linkage: https://www.omg.unb.ca/~jhc/SwathEd.html
Cross_Reference:
Citation_Information:
Originator: Butman, Bradford
Originator: Danforth, W.W.
Originator: Clarke, J.E.H.
Originator: Signell, R.P.
Publication_Date: 2017
Title:
Bathymetry and backscatter intensity of the sea floor of the Hudson Shelf Valley
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7C53J1Z
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7C53J1Z
Data_Quality_Information:
Logical_Consistency_Report:
All data were processed in the same manner. Some features in the multibeam data are artifacts of data collection and environmental conditions. They include small highs and lows and unnatural-looking features, and patterns oriented parallel or perpendicular to survey tracklines. The orientation of the tracklines is sometimes identified by the faint parallel stripes in the image.
Completeness_Report:
This grid includes bathymetry data collected with a SeaBeam Instruments 2112 multibeam mapping system on Woods Hole Coastal and Marine Science Center field activity 2002-050-FA. There are a few gaps in the grid due to incomplete coverage by the multibeam system. Other datasets from the 2002 survey of the Hudson Canyon may be found in Butman and others (2017) (see larger work citation).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The bathymetric data are presented at a resolution of 100 m/pixel. The values are an average of the soundings within an inner 75 m circle, and a weighted average of the soundings within an outer circle that increased in size with water depth: between 500 and 1,500 m, the outer circle radius was 100 m, between 1,500 and 2,500, the radius was 200 m, and for depths greater than 2,500 m, the radius was 300 m. Navigation was by differential GPS.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical accuracy is approximately 1% of the water depth (information provided by staff on NOAA ship Ronald H. Brown).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: NOAA
Originator: S. Thompson Bolmer
Originator: James M. Robb
Originator: Peter A. Rona
Publication_Date: Unpublished Material
Title: raw SeaBeam 2112 multibeam data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20020830
Ending_Date: 20020915
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: none
Source_Contribution:
A SeaBeam Instruments 2112 multibeam Echo Sounder (12 kHz) was used to acquire the bathymetric data on the NOAA ship Ronald H. Brown. This system utilized up to 151 electronically aimed beams spaced at intervals of 2 degrees that insonify a swath of sea floor up to 3 times the water depth. Over the continental rise, in water depths greater than about 2,000 m, a 5-km track separation was employed, which provided almost 100% overlap of the insonified area from swath to swath. Time considerations compelled less than ideal coverage of the continental slope area, where a track-line separation of about 1.7 km was used, that provided nearly no data overlap between swaths. The survey was conducted at approximately 10 knots (18.5 km/hr). The horizontal resolution of the beam on the sea floor ranged from about 20-65 m in the across-track direction and about 10 m in the along-track direction at 500 m water depth, and from about 100-400 m across-track and 40 m along-track at 3,000 m water depth. Navigation was by GPS. The data were collected on Woods Hole Coastal and Marine Science Center field activity 2002-050-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2002-050-FA).
Process_Step:
Process_Description:
A suite of processing software (called SwathEd) (Clarke, 1998; see cross reference) developed by the Ocean Mapping Group at the University of New Brunswick, Canada, was used to process, edit, grid, display, and archive the multibeam data. These routines are designed to be run on a Unix and/or Linux operating system.
The initial processing and editing steps carried out were:
1. Demultiplex (unravel) the SeaBeam data files using the program unravelSB2100 to generate separate files for a given raw file (filename.mb41), including depth soundings (filename.mb41.merged) and sidescan sonar backscatter values (filename.merged.mb41.ssdata).
Command line: unravelSB2100 -declin 0.0 filename.mb41
2. Generate a navigation file from the soundings file.
Command line: stripNav -comp filename.mb41.nav filename.mb41.merged
3. Edit the navigation data on-screen using the SwathEd routine jview to remove undesirable points, including turns at the ends of survey lines. Jview also rejects stray GPS fixes outside of the survey area, as set by the operator.
Command line: jview -rejectnav -navedit filename.nav
4. Make a copy of the edited navigation, and then create a new navigation file that has the bad fixes deleted from it.
Command line: mv filename.nav filename.nav_all Command line: appendNav -goodonly -comp filename.nav filename.nav_all
5. Merge the edited navigation back into the file containing the depth soundings using just the prefix of the filename. The location of the antenna relative to the motion reference unit is also entered here, along with a maximum time gap (in seconds) allowed between navigation fixes.
Command line: mergeNav -time_limit 300 filename
6. Edit the multibeam soundings for each trackline. SwathEd displays blocks of data across and along the trackline. Anomalous points were identified by comparison to other points and by an understanding of the sea floor geology and morphology. Anomalous soundings were removed.
Command line: swathed filename.merged
Process_Date: 2009
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: William W. Danforth
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
Map the bathymetric soundings from each processed data file onto a digital terrain model (DTM) in the custom Mercator projection using weigh_grid. The bathymetric data are presented at a resolution of 100 m/pixel. The weigh_grid program creates a DTM by summing up the weighted contributions of all the provided data into the DTM. The weighted contributions only extend to a user defined region around the true location of the estimate (the cutoff). The weight of an individual point contribution decays away from the node location based on the order of the Butterworth (inverse weighting) filter (-power n), the width of the flat topped radius of the weighting function (-lambda n.n), and the absolute cutoff limit (-cutoff) that will be used for data points contributing to a node. In addition, each beam/other value can be pre-weighted if required to account for its reliability. A custom weight file for each beam is created by hand and input into the weigh_grid program using the -custom_weight option. Three files are created which are used by the weigh_grid program. An ".r4" file, which contains the grid node values in binary format, an "r4_weights" file, and an "r4_weight_depth" file. To do the summing of the weights, the .r4_weights file contains the sums of the weights for each data point contributing to the node, and the .r4_weight_depth file contains the sum of the weights x the depths. Naturally the solution is: weight_depth/weights for each node. For more information, visit the OMG website at <http://www.omg.unb.ca>. The values computed for each grid node are an average of the soundings within an inner 75 m circle, and a weighted average of the soundings within an outer circle that increased in size with water depth: between 500 and 1,500 m, the outer circle radius was 100 m, between 1,500 and 2,500, the radius was 200 m, and for depths greater than 2,500 m, the radius was 300 m.
First a blank binary grid and the weights and weight_depth files must be created:
Command line: make_blank -float gridFile
This command commences a dialog to enable an 8 bit image and input the map boundaries and resolution. The program also prompts for the projection type and parameters to be used creating the binary map file (custom Mercator projection, central longitude of -75 degrees, latitude of true scale 40 degrees north).
The next command creates the weights and weight_depth files associated with the binary grid: Command line: tor4 gridFile
These two steps create all three files with a gridFile prefix.
Next, each individual data file (.merged suffix) is added to the grid using weigh_grid.
Command line: weigh_grid -omg -tide -coeffs -beam_mask -beam_weight -custom_weight RonBrownGrid_weights -butter -power 2 -cutoff 300 -lambda 75 gridFile filename.merged
Process_Date: 2009
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: William W. Danforth
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
Processing steps 1 and 2 produced a preliminary bathymetry dataset. Processing was carried out to further edit and correct the data and to produce final grids and images of the data. Processing and editing steps included:
1. Correct errors in soundings due to sound refraction, caused by variations in sound velocity profile, using the SwathEd refraction tool. These artifacts can be recognized in a cross-swath profile of a relatively flat patch of sea floor. When viewing the swath data across a profile, the sea floor will appear to have a "frown" or "smile" when in fact the data should be flat across the profile. Insufficient and/or erroneous sound velocity information, which is usually due to widely spaced or non-existent velocity profiles within an area, results in an under or over-estimate of water depth which increases with distance from the center of the swath. For a discussion of how this effect can be recognized in a swath bathymetric data file, see < http://www.omg.unb.ca/AAAS/UNB_Seafloor_Mapping.html>.
2. Remove erroneous soundings that were not edited in the field using the SwathEd program.
3. Create a new 100 meter grid of the bathymetric soundings using the SwathEd routine weigh_grid, using different cutoff parameters based on water depth.
Grid these files using a cutoff radius of 300 meters, lambda of 75 meters. Times: 08/30-31/2002 all, 09/01-06/2002 all, 09/07/2002 0000-0833 Times: 09/13/2002 0345-2219
Command line: weigh_grid -omg -tide -coeffs -beam_mask -beam_weight -custom_weight RonBrownGrid_weights -butter -power 2 -cutoff 300 -lambda 75 gridFile filename.merged
Grid these files using a cutoff radius of 200 meters. Times: 09/07/2002 0921-2359, 09/08/2002 0000-1117 Times: 09/14/2002 0813-2359, 09/15/2002 all
Command line: weigh_grid -omg -tide -coeffs -beam_mask -beam_weight -custom_weight RonBrownGrid_weights -butter -power 2 -cutoff 200 -lambda 75 gridFile filename.merged
Grid these files using a cutoff radius of 100 meters. Times: 09/08/2002 1152-2359, 09/09/2002 all, 09/10/2002 0000-1854 Times: 09/14/2002 0543-0743Command line: weigh_grid -omg -tide -coeffs -beam_mask -beam_weight -custom_weight RonBrownGrid_weights -butter -power 2 -cutoff 100 -lambda 75 gridFile filename.merged
4. Convert binary bathymetric grid to Esri ASCII raster format:
Command line: r4toASCII gridFile.r4
This creates a file called gridFile.asc.
Note: Errors in the UNB gridding software were identified in 2003 and 2007. These data were processed with corrected software.
Process_Date: 2009
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: William W. Danforth
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
Create an Esri bathymetry grid by importing data from Esri ASCII raster format into Esri grid format.
Process_Date: 2009
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: William W. Danforth
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2274
Contact_Electronic_Mail_Address: bdanforth@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200807
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_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 2437
Column_Count: 2089
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Mercator
Mercator:
Standard_Parallel: 40.000000
Longitude_of_Central_Meridian: -75.000000
False_Easting: 0.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 100.000000
Ordinate_Resolution: 100.000000
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:
Altitude_System_Definition:
Altitude_Datum_Name: local sea level
Altitude_Resolution: 0.01
Altitude_Distance_Units: m
Altitude_Encoding_Method: Implicit coordinate
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
A SeaBeam Instruments 2112 multibeam Echo Sounder (12 kHz) was used to acquire the bathymetric data on the NOAA ship Ronald H. Brown. The bathymetric data are presented at a resolution of 100 m/pixel. The values are an average of the soundings within an inner 75 m circle, and a weighted average of the soundings within an outer circle that increased in size with water depth: between 500 and 1,500 m water depth, the outer circle radius was 100 m; between 1,500 and 2,500 water depth, the radius was 200 m; and for water depths greater than 2,500 m, the radius was 300 m. Water depth is reported as negative altitude relative to instantaneous sea level. Range is -351 to -4035 m. There is no tidal correction to depth.
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: Denver 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
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
hc_rb_bath100.zip: contains the Esri binary grid hc_rb_bath100 comprised of the hc_rb_bath100 folder and an info folder, the 32-bit GeoTIFF image and associated world file (hc_rb_bath100.tif and hc_rb_bath100.tfw), and associated FGDC compliant metadata (CSDGM format).
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the U.S. Geological Survey, 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: AIG
Format_Version_Number: ArcGIS 9.3
Format_Specification: Esri grid
Format_Information_Content:
Esri bathymetric grid and GeoTIFF with world file, browse graphic, and associated metadata from a 2002 multibeam survey of the Hudson Canyon compressed in a zip file.
File_Decompression_Technique: zip
Transfer_Size: 7.2
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The network resources offer the options of downloading all the files, individual files, or accessing the landing page of the data.
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Version_Number: ArcGIS 10.3.1
Format_Specification: 32-bit GeoTIFF image
Format_Information_Content:
Esri bathymetric grid and GeoTIFF with world file, browse graphic, and associated metadata from a 2002 multibeam survey of the Hudson Canyon compressed in a zip file.
File_Decompression_Technique: zip
Transfer_Size: 7.2
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The network resources offer the options of downloading all the files, individual files, or accessing the landing page of the data.
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS REST service
Format_Information_Content:
Hudson Canyon 32-bit GeoTIFF bathymetry data provided through a service definition file in an ArcGIS REST service.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The network resources offer the option of accessing the data through a mapping service or accessing the landing page of the data.
Digital_Form:
Digital_Transfer_Information:
Format_Name: WMS
Format_Information_Content:
Hudson Canyon 32-bit GeoTIFF bathymetry data provided through a service definition file served through a WMS (web mapping service).
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The network resources offer the option of accessing the data through a mapping service or accessing the landing page of the data.
Fees: none
Technical_Prerequisites:
The grid of bathymetry is compressed into a zip file (hc_rb_bath100.zip) and available through mapping services. To utilize these data available in the zip file, the user must have software capable of uncompressing the zip file and importing and viewing an Esri ArcRaster grid. The grid consists of two folders, one with the "grid name," and one "info" folder. The two folders must be uncompressed to the same folder.
Metadata_Reference_Information:
Metadata_Date: 20240319
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bradford Butman
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Coastal and Marine Science Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2212
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_F77H1GSF/hc_rb_bath100_meta.html>
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