Hudson River Estuary Seismic Shotpoints

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Robin Bell
Originator: William Ryan
Originator: Suzanne Carbotte
Originator: Frank Nitsche
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2006
Title: Hudson River Estuary Seismic Shotpoints
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: New York State Department of Environmental Conservation
Description:
Abstract:
Hudson River Benthic Mapping project. This data contain the location of sub-bottom (Chirp) shotpoints. Data were collected in a dense grid consisting of 80 m spaced north-south lines and 180 m spaced E-W lines.
Purpose:
Purpose of the Hudson River Benthic Mapping Project of the New York State DEC is to create a comprehensive map of the bottom of the Hudson River, its sediment distribution and potential habitat classification. The purpose of these seismic shotpoint shape files is to locate in space the seismic data that is contained in the seismic gif images and the seismic SEG-Y data files.
Supplemental_Information:
Peer Reviewed Publications
- Bell, R.E., R.D. Flood, S. Carbotte, W.B.F. Ryan, C. McHugh, M. Cormier, R. Versteeg, H. Bokuniewicz, V.L. Ferrini, J. Thissen, J.W. Ladd, E. A. Blair, 2006, Benthic habitat mapping in the Hudson River Estuary, in J. Levinton and J. Waldman(editors), The Hudson River Estuary, Cambridge Univ Press., pp 51-64.
- Carbotte, S.M., R.E. Bell, W.B.F. Ryan, C. McHugh, A. Slagle, F.O. Nitsche , J. Rubenstone, 2004, Environmental change and oyster colonization within the Hudson River estuary linked to Holocene climate, Geo-Marine Letters, 24, 212-224.
- McHugh, C.M.G., Pekar, S.F., Christie-Blick, N., Ryan, W.B.F., Carbotte, S., Bell, R., 2004. Spatial variations in a condensed interval between estuarine and open marine settings: Holocene Hudson River Estuary and adjacent continental shelf, Geology, 32 (2): 169-172.
- Nitsche, F.O., Bell, R., Carbotte, S.M., Ryan, W.B.F., Flood, R., 2004. Process-related classification of acoustic data from the Hudson River Estuary, Marine Geology, 209(1-4): 131-145.
- Nitsche, F.O. R. Bell, S.M. Carbotte, W.B.F. Ryan, A. Slagle, S. Chillrud, T. Kenna, R. Flood, V. Ferrini, R. Cerrato, C. McHugh, D. Strayer, 2005, Integrative acoustic mapping reveals Hudson River sediment processes and habitats, EOS 86(24), pp
- Nitsche, F.O., S. Carbotte, W.B.F. Ryan and R. Bell, 2005, A seabed classification approach based on multiple acoustic sensors in the Hudson River Estuary, in D.M. FitzGerald and J. Knight (editors) High Resolution Morphodynamics and Sedimentary Evolution of Estuaries: Springer, pp 33-55.
- Nitsche, F.O., W.B.F. Ryan, S.M. Carbotte, R.E. Bell, A. Slagle, C. Bertinado, R. Flood, T. Kenna, C. McHugh, 2007, Regional patterns and local variations of sediment distribution in the Hudson River Estuary, Estuarine, Coastal and Shelf Science, 71, 259-277.
- Pekar, S.F., McHugh, C.M.G., Christie-Blick, N., Jones, M., Carbotte, S.M., Bell, R.E., Lynch-Stieglitz, J., 2004, Estuarine processes and their stratigraphic record: paleosalinity and sedimentation changes in the Hudson Estuary (North America), Marine Geology, 209(1-4): 113-129.
- Slagle, A.L., W.B.F. Ryan, S.M. Carbotte, R. Bell, F.O. Nitsche, and T. Kenna. 2006, Late-stage estuary infilling controlled by limited accommodation space in the Hudson River. Marine Geology, Volume 232, Issues 3-4, Pages 181-202.
- Strayer, D.L., M.M. Malcolm, R.E. Bell, S.M. Carbotte, F.O. Nitsche, 2006, Using geophysical information to define benthic habitats in a large river, Freshwater Biology 51, 25?38
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1998
Ending_Date: 2003
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.083759
East_Bounding_Coordinate: -73.685668
North_Bounding_Coordinate: 42.7478
South_Bounding_Coordinate: 40.605771
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: benthic habitats
Theme_Keyword: sub-bottom profiles
Theme_Keyword: acoustic survey
Theme_Keyword: seismic
Theme_Keyword: estuary
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Hudson River
Place_Keyword: New York State
Place_Keyword: New York
Place_Keyword: United States of America
Access_Constraints: no access constraints
Use_Constraints:
none; Lamont-Doherty Earth Observatory of Columbia University requests to be acknowledged as the originator of the data in future products or derivative research.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John Ladd
Contact_Organization: Hudson River National Estuarine Research Reserve, NYS DEC
Contact_Position: Benthic Mapping Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: Norrie Point Environmental Center
Address: PO Box 315
City: Staatsburg
State_or_Province: NY
Postal_Code: 12580
Country: USA
Contact_Voice_Telephone: 845-889-4745
Contact_Electronic_Mail_Address: jxLadd@gw.dec.state.ny.us
Data_Set_Credit:
Robin Bell, William Ryan, Suzanne Carbotte, Frank Nitsche, Lamont-Doherty Earth Observatory of Columbia University
Cross_Reference:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2005
Title: Hudson River Estuary Benthic Survey Index
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: NYS Dept Environmental Conservation
Cross_Reference:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2003
Title:
Hudson River Estuary Sidescan and Seismic Track Navigation ascii
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: NYS DEC
Cross_Reference:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2002
Title: Hudson River Estuary Seismic Profile Data SEG-Y
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: New York State Dept of Environmental Conservation
Cross_Reference:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2005
Title: Hudson River Estuary Seismic Profile Gif Images
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: NYS Dept Environmental Conservation
Cross_Reference:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory of Columbia University
Publication_Date: 2005
Title:
Hudson River Estuary Sidescan and Seismic Track Line Information
Series_Information:
Series_Name: Hudson River Estuary Program
Issue_Identification: Benthic Mapping Project
Publication_Information:
Publication_Place: Albany, NY
Publisher: NYS Dept Environmental Conservation

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Data are geo-referenced using differential GPS (DGPS) which results in a lateral accuracy of < +/- 1m. Data have been corrected for layback.
Logical_Consistency_Report:
Position of the ship was determined every second; any large departures from expected positions were analyzed.
Completeness_Report:
The data cover the whole Hudson River Estuary from Verrazano Bridge to Troy. Although areas of the Hudson River shallower then 4 m have not been surveyed and sampled completely.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Position was determined using DGPS and layback correction.
Lineage:
Process_Step:
Process_Description:
NAVIGATION GPS navigation data were acquired from a pair of Ashtech Z-12 (dual-frequency 12-channel Y-Code) geodetic-quality GPS receivers, operated continuously at 2 Hz. One receiver was located on the ship and one was located at a fixed basestation at LDEO. The GPS data are post-processed with the KARS (Kinematic and Rapid Static) software package developed by G.Mader at the National Geodetic Survey (NGS). We solve for the relative position of the ship at each epoch with respect to the fixed basestation, which has been precisely located from a static solution with nearby stations in the CORS (Continuously Operated Reference Stations) network, and precise satellite orbit data obtained from the Crustal Dynamics Data Information System (CDDIS) archive. Differential processing allows us to remove clock errors and orbit errors which are common to both receivers. The tropospheric delay is modeled, and the ionospheric error is reduced by using both the L1 and L2 frequency observables. KARS uses an optimized integer-search algorithm to resolve initial satellite ambiguities and detect cycle slips. Final pseudorange corrected positions are accurate to 0.5 meters.
Process_Date:
1998 to 2003 (Real time during data acquisition: listed in attribute table)
Process_Step:
Process_Description:
Data collected using EdgeTech CHIRP 424 (4-24kHz) Data have been merged with corrected navigation and corrected for tides. General scaling of amplitudes and image generation via seismic unix. Every 250th or every 500th shotpoint has been extracted from the navigation data sets.
Process_Date: 1998 and later (various times after the data acquisition)

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 38155

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000032
Ordinate_Resolution: 0.000032
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: sub-bottom shotpoints
Entity_Type_Definition: selected shotpoints
Entity_Type_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute:
Attribute_Label: LINE_num
Attribute_Definition:
Line number of the seismic profile within the survey area. This is the same as the LINE_ID without the first 3 characters of the LINE_ID.
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Unrepresentable_Domain: line identification
Attribute:
Attribute_Label: LINE_ID
Attribute_Definition:
Name of seismic profile; The naming convention for profiles is as follows: the first two characters (letter and digit) refer to a survey area as defined in the Hudson River Estuary Benthic Survey Index. The third character (e,w,n,s) designates the direction from which the line was shot (e-east to west, w-west to east, n-north to south, s-south to north). The remainder of the name is the line number in the survey area.
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Unrepresentable_Domain: line identification
Attribute:
Attribute_Label: DATE_TIME
Attribute_Definition: data and time of shot
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1998:317:17:00
Range_Domain_Maximum: 2003:107:19:40
Attribute:
Attribute_Label: SHOTPOINT
Attribute_Definition: shot point number
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 36637
Attribute:
Attribute_Label: LAT
Attribute_Definition: Latitude of shotpoint
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 40.600
Range_Domain_Maximum: 42.753
Attribute:
Attribute_Label: LON
Attribute_Definition: Longitude of shotpoint
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -74.075
Range_Domain_Maximum: -73.685
Attribute:
Attribute_Label: IMAGES
Attribute_Definition:
Reference to gif image of the whole profile (see cross_reference Hudson River Estuary Seismic Profile Gif Images)
Attribute_Definition_Source: Lamont-Doherty Earth Observatory of Columbia University
Attribute_Domain_Values:
Unrepresentable_Domain: html link to gif image
Overview_Description:
Entity_and_Attribute_Overview:
Identifier of seismic line and some basic information on the line
Entity_and_Attribute_Detail_Citation: Lamont-Doherty Earth Observatory of Columbia University

Metadata_Reference_Information:
Metadata_Date: 20080101
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Lamont-Doherty Earth Observatory of Columbia University
Contact_Person: Dr. Robin Bell
Contact_Address:
Address_Type: mailing and physical address
Address: 61 Rte 9W
City: Palisades
State_or_Province: NY
Postal_Code: 10964-8000
Contact_Voice_Telephone: 845-365-8827
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Distribution_Information:
Distributor:
Contact_Information:
Contact_Address:
Address: 625 Broadway
Address_Type: mailing and physical address
Address: 3rd Floor
City: Albany
State_or_Province: NY
Postal_Code: 12233-2750
Country: USA
Contact_Organization_Primary:
Contact_Organization: New York State Department of Environmental Conservation
Contact_Person: Division of Information Services, GIS Unit
Contact_Voice_Telephone: (518) 402-9860
Contact_Facsimile_Telephone: (518) 402-9031
Contact_Electronic_Mail_Address: enterpriseGIS@gw.dec.state.ny.us
Distribution_Liability:
New York State Department of Environmental Conservation provides these geographic data "as is." New York State Department of Environmental Conservation makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. New York State DEC further makes no warranty, either expressed or implied, regarding the condition of the product or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on a computer system at New York State Department of Environmental Conservation, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. New York State Department of Environmental Conservation shall not be held liable for improper or incorrect use of the data described and/or contained herein.

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