Skip to main content

GeoTIFF image of the backscatter intensity of the sea floor of the Hudson Canyon region (100-m resolution, Mercator, WGS 84)

Dates

Publication Date
Start Date
2002-08-30
End Date
2002-09-15

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.

Summary

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 [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

hc_rb_backi_browsegraphic.jpg
“Browse graphic of the data.”
thumbnail 43.99 KB image/jpeg
hc_rb_backi.zip
“Zip file containing the data and metadata.”
1.46 MB application/zip
Extension: hc_rb_backi.zip
thumbnail.png thumbnail 11.76 KB

Purpose

The GeoTIFF image of backscatter intensity provides qualitative information on the sediment texture and roughness of the sea floor. Backscatter intensity, a measure of the strength of the acoustic return from the sea floor, is a function of the properties of the surficial sediments and of the bottom roughness. Generally high backscatter intensity (strong return), shown as light gray tones, is associated with rock or coarse-grained sediment, and low backscatter intensity (weak return), shown as dark gray tones, with fine-grained sediments.

Additional Information

ArcGIS Service Definition Extension

boundingBox
minY37.5837451638726
minX-72.5833329545004
maxY39.8666670171229
maxX-70.0503638662811
enabledServices
WMSServer
filePathUsed__disk__c2/30/35/c230351723e360acdd32296e2e7ce8b8b795b483
files
namehc_rb_backi.sd
contentTypex-gis/x-arcgis-service-def
pathOnDisk__disk__c2/30/35/c230351723e360acdd32296e2e7ce8b8b795b483
size2772979
dateUploadedThu May 11 08:02:04 MDT 2017
originalMetadatatrue
checksum
valued98f82cc2acf1928e47427f2d0d87ec1
typeMD5
namethumbnail.png
contentTypeimage/png
pathOnDisk__disk__7e/80/11/7e80116b952acaa19616d17b5a3ec502e3412db3
imageWidth200
imageHeight133
size12043
dateUploadedThu May 11 08:02:23 MDT 2017
namehc_rb_backi.sd
processingStatesuccess
serviceId58fa5e29e4b0b7ea54525621
servicePath58fa5e29e4b0b7ea54525621

Item Actions

View Item as ...

Save Item as ...

View Item...