USGS OFR 02-217: Hudson Shelf Valley

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Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Bradford Butman
Publication_Date: 2002
Title: USGS OFR 02-217: Hudson Shelf Valley
Geospatial_Data_Presentation_Form: tabular digital data
Online_Linkage: <http://pubs.usgs.gov/of/2002/of02-217/>
Larger_Work_Citation:
Citation_Information:
Series_Information:
Publication_Information:
Description:
Abstract:
Surveys of the sea floor at each mooring site were carried out using a multibeam sea floor mapping system to provide detailed maps of bathymetry and backscatter intensity. The multibeam surveys were carried out as part of a larger survey of the New York Bight and the Hudson Shelf Valley (Butman and others (1998); Butman (1998); Butman and others (2002); and USGS Studies in the New York Bight). The surveys were carried out using a Simrad EM 1000 sea floor mapping system mounted on the survey vessel Frederick G. Creed. The surveys at sites A; B; C and F were carried out in 1996 and 1998 prior to the Hudson Shelf Valley winter experiment and were used to help locate the instruments in the axis of the valley. Multibeam surveys at sites D and E on the continental shelf were carried out in April 2000 after the instruments were retrieved. Backscatter intensity from a sidescan sonar survey of the New York Bight Apex was used to help place these instruments (see Schwab and others; 2000)., Bottom photographs; videos and sediment samples of the sea floor were obtained on the mooring deployment (RV Oceanus; December 1999) and recovery cruises (RV Endeavor; April 2000) to show the character of the sea floor. These observations were made using the SeaBed Observation and Sampling System (SEABOSS) (Valentine and others (2000) <http://pubs.usgs.gov/fs/fs142-00/>; Blackwood and Parolski (2002)). SEABOSS is equipped with two video cameras; a still camera; a pressure-depth sensor; and a modified Van Veen sediment grab sampler. At each station; the SEABOSS was lowered to a target elevation about 76 centimeters (30 inches) above the sea floor and the ship allowed to slowly drift; typically for a few hundred meters. As the ship drifted; typically at a knot or less; bottom video was recorded continuously and individual photographs of the sea floor were triggered remotely based on the video available in real time at the surface. Typically 5-50 still photographs were obtained at each station. At 76 centimeters above the bottom; the still photographs show a 76 x 51 centimeter area of the seafloor. At most stations; a single sample of the sediment was obtained using the Van Veen sampler; typically at the end of the transect. At some locations; cobbles and boulders on the seafloor made sampling impossible. The upper 2 cm of the sediment were skimmed from the grab sample and analyzed for texture using the methods outlined in Poppe and others (2000). Additional photographs and videos from these and other stations in the New York Bight may be found in Butman and others (in press). ,
Purpose:
Sediment transport and circulation observations in the vicinity of the Hudson Shelf Valley as part of a program to investigate the transport and fate of sediment and associated contaminants in the coastal waters offshore of the New York - New Jersey metropolitan region.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2002
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.857590
East_Bounding_Coordinate: -73.238050
North_Bounding_Coordinate: 40.390590
South_Bounding_Coordinate: 39.937900
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: analyses
Theme_Keyword: clay
Theme_Keyword: CMGP
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: grain size
Theme_Keyword: sand
Theme_Keyword: sediment data
Theme_Keyword: silt
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: photography
Theme_Keyword: grab samples
Theme_Keyword: bottom photos
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Atlantic coast
Place_Keyword: East Coast
Place_Keyword: Hudson Shelf Valley
Place_Keyword: New York
Place_Keyword: New York Bight
Place_Keyword: United States
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_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: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2361
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: bbutman@usgs.gov
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Cross_Reference:
Citation_Information:
Originator: Bradford Butman
Originator: P. Soupy Alexander
Originator: Courtney K. Harris
Originator: Peter A. Traykovski
Originator: Marilyn B. ten Brink
Originator: Frances S. Lightsom
Originator: Marinna A. Martini
Publication_Date: 2002
Title:
Oceanographic Observations in the Hudson Shelf Valley, December 1999 - April 2000: Data Report
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 02-217
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <http://pubs.usgs.gov/of/2002/of02-217/>
Data_Quality_Information:
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Process_Description: Data were downloaded from the online publication.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Chris Jenkins
Contact_Organization:
Institute of Arctic & Alpine Research (INSTAAR) Univeristy of Colorado at Boulder
Contact_Address:
Address_Type: mailing and physical address
Address: 1560 30th Street
Address: Campus Box 450
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0450
Country: USA
Contact_Voice_Telephone: (303) 735-5250
Contact_Facsimile_Telephone: (303) 492-6388
Contact_Electronic_Mail_Address: chris.jenkins@colorado.edu
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Digital data were checked, formatted to dbSEABED input format, then processed using dbSEABED software to produce a range of output formats. The processing contained quality checking that may have declined to pass faulty or suspect data to outputs.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Chris Jenkins
Contact_Organization:
Institute of Arctic & Alpine Research (INSTAAR) Univeristy of Colorado at Boulder
Contact_Address:
Address_Type: mailing and physical address
Address: 1560 30th Street
Address: Campus Box 450
City: Boulder
State_or_Province: CO
Postal_Code: 80309-0450
Country: USA
Contact_Voice_Telephone: (303) 735-5250
Contact_Facsimile_Telephone: (303) 492-6388
Contact_Electronic_Mail_Address: chris.jenkins@colorado.edu
Process_Step:
Process_Description:
Corrections were made to phi-size classes as they were held in the usSEABED data resource files.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Polly Hastings
Contact_Organization: U.S. Geological Survey
Contact_Position: Oceanographic Data Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700x2289
Contact_Facsimile_Telephone: 5084572310
Contact_Electronic_Mail_Address: phastings@usgs.gov
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Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698
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Attribute:
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Attribute:
Attribute_Label: SITENAME
Attribute:
Attribute_Label: DATASETKEY
Overview_Description:
Entity_and_Attribute_Overview:
The following fields were entered into usSEABED:

SFS data:Cruise:Mooring Site:Station:Latitude:Longitude:Depth (meters): Sample kg:JD:GMT hrs SFS data:JD_Time:Year:Mass (grams) TXR data:Percent Gravel:Percent Sand:Percent Silt:Percent Clay:Median:Mean:Standard Deviation: Mode One Phi Size [Mode One Frequency] ; Mode Two Phi Size [Mode Two Frequency] ; Mode Three Phi Size [Mode Three Frequency]:Skew:Kurtosis LTH data: Class

Distribution_Information:
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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.

Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.

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Metadata_Reference_Information:
Metadata_Date: 20050525
Metadata_Review_Date: 20050504
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jamey Reid
Contact_Organization: U.S. Geological Survey
Contact_Position: IT Specialist (Data Management)
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 x2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
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Generated by mp version 2.7.33 on Wed May 25 13:43:46 2005