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Value | Definition |
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slope | The continental slope occupies the northwest portion of the study area and extends from the shoreward limit of the survey to water depths of 2,000-2,200 m. Areas that are not incised by submarine canyons exhibit slopes that range from 1.8-3 degrees in water depths shallower than 1,300 m and from 2.5-5 degrees in water depths deeper than 1,300 m. |
base of slope depressions | At the base of the continental slope there are a series of narrow, linear depressions. They are discontinuous, trend parallel to the base of the slope, are 0.5-2 km wide and 3-13 km long, and are as much as 23 m deeper than the surrounding sea floor. |
canyon floor | Canyon floors are the relatively flat axial valleys of submarine canyons. Most canyon floors have a comparatively high backscatter intensity on the backscatter image. |
canyon floor-filled | Shallow valleys located to the northeast of Hudson Canyon that can be traced from the mouths of the canyons at the base on the slope onto the upper rise where they coalesce into one valley that feeds into Hudson Canyon. These shallow valleys and two others on the northeastern side of Hudson Canyon are partially filled with mass-transport deposits. |
canyon wall | Canyon walls flank the axial valleys of submarine canyons. Where canyons transect the continental slope the average slope of the walls is about 8 degrees, the walls are eroded, and an intricate network of gullies indicates slope failure. |
upper rise | The upper continental rise lies seaward of the base-of-slope depressions and extends offshore to water depths of 3,000 – 3,100 m. The slope of the upper rise away from submarine canyons ranges from 0.2-0.9 degrees. |
lower rise | The lower continental rise extends from water depths of 3,000-3,100 m to beyond the southeastern edge of the study area. The slope of the lower rise ranges from 0.5-1.2 degrees and, on average, has a slightly greater slope than the upper rise. |
rise valley | Several linear valleys with bowl-like heads originate on the lower rise in water depths between 3,000 and 3,200 m water depth. The rise valleys are shallow, straight features with bowl-like heads that are 6-69 m deeper than the surrounding sea floor. |
This shapefile shows an interpretation of geomorphic provinces (slope, base of slope depressions, canyon floor, canyon floor filled, canyon wall, upper rise, lower rise, rise valley) in the Hudson Canyon region based on multibeam bathymetry collected in 2002.
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Are there legal restrictions on access or use of the data?Access_Constraints: none
Use_Constraints: none
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.
Data format: | Shapefile showing morphology of the Hudson Canyon region and associated metadata from a 2002 survey of the Hudson Canyon compressed in a zip file. in format shapefile (version ArcGIS 10.3.1) Esri shapefile Size: 0.1 |
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Network links: |
https://www.sciencebase.gov/catalog/file/get/58fa5ed2e4b0b7ea54525658 https://www.sciencebase.gov/catalog/item/58fa5ed2e4b0b7ea54525658 https://doi.org/10.5066/F77H1GSF |
Data format: | Shapefile showing morphology of the Hudson Canyon region derived from a 2002 multibeam survey of the Hudson Canyon and adjacent slope and rise with the data provided through a WMS (web mapping service). in format WMS (version 1.3.0) |
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Network links: |
https://www.sciencebase.gov/catalogMaps/mapping/ows/58fa5ed2e4b0b7ea54525658?service=wms&request=getcapabilities&version=1.3.0 https://www.sciencebase.gov/catalog/item/58fa5ed2e4b0b7ea54525658 |
Data format: | Shapefile showing morphology of the Hudson Canyon region derived from a 2002 multibeam survey of the Hudson Canyon and adjacent slope and rise with the data provided through a WFS (web feature service). in format WFS (version 1.0.0) |
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Network links: |
https://www.sciencebase.gov/catalogMaps/mapping/ows/58fa5ed2e4b0b7ea54525658?service=wfs&request=getcapabilities&version=1.0.0 https://www.sciencebase.gov/catalog/item/58fa5ed2e4b0b7ea54525658 |
The shapefile of morphology is compressed into a zip file (hc_morph.zip). To use these data, the user must have software capable of uncompressing the zip file and ArcGIS or another GIS application package capable of viewing the data.