Identification_Information: Citation: Citation_Information: Originator: Jane F. Denny Publication_Date: 2002 Publication_Time: Unknown Title: Depth to Pleistocene Units mapped within the Hudson Shelf Valley Edition: 1 Geospatial_Data_Presentation_Form: raster data Publication_Information: Publication_Place: Woods Hole, MA Publisher: US Geological Survey Larger_Work_Citation: Citation_Information: Originator: Schwab, William C. Originator: Denny, Jane F. Originator: Foster, David S. Originator: Lotto, Linda L. Originator: Allison, Mead A. Originator: Uchupi, Elazar Originator: Swift, B. Ann Originator: Danforth, William W. Originator: Thieler, Robert E. Originator: Butman, Bradford Publication_Date: 2002 Title: High-Resolution Quaternary seismic stratigraphy of the New York Bight Continental Shelf Geospatial_Data_Presentation_Form: Maps, remote sensing imagery, tabular digital data, and raster and vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: OFR02-152 Publication_Information: Publication_Place: Woods Hole, MA Publisher: U.S. Geological Survey Description: Abstract: These data represent the depth to two Pleistocene reflectors mapped within the Hudson Shelf Valley. These data were mapped based on 15 cubic inch water gun and CHIRP records collected May, 1996. See Allison, 1997; Lanier, 1999; Lotto, 2000. Purpose: In 1995, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army Corps of Engineers (USACE), began a program to generate reconnaissance maps of the sea floor offshore of the New York - New Jersey metropolitan area and within the southern Long Island nearshoe area. Our methods include high-resolution sidescan sonar and subbottom profiling techniques, along with surface grab and vibracore sampling to verify the geophysical interpretations. The goal of the investigation is to provide a regional synthesis of the sea-floor environment, to determine regional-scale availability of sand as a resource for beach nourishment programs, and to investigate the role that inner-shelf morphology and geologic framework have in the evolution of the coastal region within the New York Bight Apex and southern Long Island. Maps derived from interpretation of the subbottom profiles show information on the geometry and distribution of the Quaternary sediments and the underlying coastal-plain unconformity. This seismic stratigraphy yields a regional framework on which explanations of present (and past) sediment movement, dispersal, and erosion processes are based. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19960501 Ending_Date: 19960530 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -74.06 East_Bounding_Coordinate: -71.8000 North_Bounding_Coordinate: 41.26 South_Bounding_Coordinate: 40 Keywords: Theme: Theme_Keyword_Thesaurus: Hudson Shelf Valley Theme_Keyword: Pleistocene channels Place: Place_Keyword_Thesaurus: New York Bight Place_Keyword: inner-shelf Place_Keyword: New York Place_Keyword: Hudson Shelf Valley Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny Contact_Organization: US Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-457-2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: These data are derived from 2D seismic reflection profiles that are spaced approximately 1.3 km apart in the cross track-direction. Shore perpendicular track lines were spaced about 3-4 km apart. Along track samples of the seismic profiles are approximately 1 meter assuming a ship speed of 2 meters/second. The data were downsampled in the along-track direction at an interval of about 30 meters. Logical_Consistency_Report: The Pleistocene channels were mapped by Allison(1997) and Lanier(1999). Completeness_Report: complete Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: DGPS is assumed to be accurate within 1-2 meters. Standard GPS is assumed accurate within 5-10 meters. 99% of the positional data is DGPS. Unless noted, all GPS/DGPS data is referenced to WGS84 (NAD83). The horizontal positioning did not account for source and receiver offsets and offset the GPS antennae and the boomer source and streamer. It is estimated that these offsets could lead to inaccuracies of about 30 m. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical positioning accuracy of the offshore data is based on the seafloor reference used. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Allison, M.A. Originator: Lotto, L.L Originator: Buchholtz ten Brink Originator: Schwab, W.C. Publication_Date: 1997 Publication_Time: unknown Title: Formation and geologic evolution of the Hudson Shelf Valley, New York Bight(abstract): Edition: 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geological Society of America, Abstracts with Programs Issue_Identification: vol.29, p.27 Publication_Information: Publication_Place: Unknown Publisher: Geological Society of America Type_of_Source_Media: map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19970000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hudson Shelf Valley Source_Contribution: This reference definees the Pleistocene channels mapped within the Hudson Shelf Valley. Source_Information: Source_Citation: Citation_Information: Originator: Lanier, D.L Originator: Allison, M.A. Originator: Schwab, W.C. Originator: Thieler, E.R. Originator: Butman, B. Publication_Date: 1999 Publication_Time: unknown Title: Effects of Holocene transgression on the stratigraphy of the NY Bight inner continental shelf Edition: 1 Geospatial_Data_Presentation_Form: digital raster data Series_Information: Series_Name: American Geophysical Union, Ocean Sciences Meeting Supplement Issue_Identification: OS203 Publication_Information: Publication_Place: unknown Publisher: unknown Type_of_Source_Media: map Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lanier Source_Contribution: This reference was used in the interpretation of the Pleistocene channels within the Hudson Shelf Valley. Source_Information: Source_Citation: Citation_Information: Originator: Lotto, L.L Publication_Date: 2000 Publication_Time: Unknown Title: Seismic stratigrpahy and Quaternary evolution of the New York Bight inner continental shelf: Texas A&M University, unpublished M.S. Thesis, College Station, TX, 79p and 16 sheets. Edition: 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Masters of Science Thesis Issue_Identification: unknown Publication_Information: Publication_Place: College Station, Texas Publisher: Texas A&M University Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: Publication Date Source_Citation_Abbreviation: Seismic Stratigraphy of New York Bight Source_Contribution: The well log data compiled within this thesis were used to generate a gridded data set of the depth to coastal-plain Unconformity and Quaternary thickness onshore Long Island, NY. Source_Information: Source_Citation: Citation_Information: Originator: Lanier, D.L Originator: Allison, M.A. Publication_Date: 2002 Publication_Time: unknown Title: rednew Edition: 1 Geospatial_Data_Presentation_Form: digital vector data Series_Information: Series_Name: MapInfo vector file Issue_Identification: MapInfo vector file Other_Citation_Details: See Allison, 1999; Lanier, 1997. Type_of_Source_Media: digital raster grid Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: MapInfo Pleistocene Channel, r6 Source_Contribution: This MapInfo vector file represents contours of a Pleistocene channel mapped within the Hudson Shelf Valley based on 15 cubic inch water gun and CHIRP seismic-reflection data. This contour file was converted to ArcView vector format and used to generate a digital raster grid of the depth to the Pleistocene channel. Source_Information: Source_Citation: Citation_Information: Originator: Lanier, D.L. Originator: Allison, M.A. Publication_Date: 2002 Publication_Time: unknown Title: bluenew Edition: 1 Geospatial_Data_Presentation_Form: digital vector data Series_Information: Series_Name: MapInfo vector data Issue_Identification: MapInfo vector data Other_Citation_Details: See Allison, 1997; Lanier, 1999. Type_of_Source_Media: digital raster grid Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Pleistocene channel, r5 Source_Contribution: This MapInfo vector file represents contours of a Pleistocene channel mapped within the Hudson Shelf Valley based on 15 cubic inch water gun and CHIRP seismic-reflection data. This contour file was converted to ArcView vector format and used to generate a digital raster grid of the depth to the Pleistocene channel. Process_Step: Process_Description: MapInfo vector data, rednew and bluenew, were converted into ArcView 3.2 shapefiles using the Universal Translator within MapInfo 5.5. These vector data represented the depth to two Pleistocene reflectors, r5 and r6. The ArcView shapefiles were then converted to ArcInfo line coverages using the ArcInfo command, SHAPETOARC. The projection for each coverage was defined as Geographic Coordinate System utilizing the ArcInfo command, PROJECTDEFINE. The coverages were then projected from thier native Geographic Coordinate System into UTM projection, zone 18, units meters, WGS84 datum utilzing the ArcInfo command PROJECT. The grids representing depth to Pleistocene reflectors were then displayed within ArcView 3.2. The dimensions of the two grids are as follows: r5grd rows:1269 columns:616; r6grd rows: 890 columns: 349. Process_Date: 2000 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny Contact_Organization: US Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-457-2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: raster Raster_Object_Information: Raster_Object_Type: grid cell 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: -075.000000 Latitude_of_Projection_Origin: +00.000000 False_Easting: 500000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 200 Ordinate_Resolution: 200 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.0000000 Denominator_of_Flattening_Ratio: 298.26 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 1 Altitude_Distance_Units: Meters Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates Depth_System_Definition: Depth_Datum_Name: Mean sea level Depth_Resolution: 0.1 Depth_Distance_Units: Meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny Contact_Organization: US Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-457-2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Resource_Description: r5grd, r6grd Distribution_Liability: Altough this data set and its lineage have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or it's 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 items. Users must assume responsibility for the proper use of this data. This data should not be used at resolutions for which it is not intended. This data has no been reviewed for conformity with US Geological Survey editorial standards, or the North American Strigraphic code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government. Metadata_Reference_Information: Metadata_Date: 20020119 Metadata_Review_Date: 2002 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny Contact_Organization: US Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: 508-457-2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Use_Constraints: None