Metadata: Identification_Information: Citation: Citation_Information: Originator: Jane F. Denny Originator: David S. Foster Originator: William C. Schwab Originator: B. Ann Swift Publication_Date: 2001 Publication_Time: Unknown Title: Interpretation of the thickness of Holocene deposits on the inner-continental shelf within the New York Bight, derived from seismic data collected by the U.S. Geological Survey, 1995 - 1999 (Grid, UTM Zone 18N, WGS84 and Esri polyline shapefile, Geographic, WGS84) Edition: 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Open-File Report Issue_Identification: 2002-152 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr2002152 Online_Linkage: https://pubs.usgs.gov/of/2002/of02-152/HTML/META.HTM Online_Linkage: https://pubs.usgs.gov/of/2002/of02-152/ 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, E. Robert 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: 2002-152 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/2002/of02-152/ Description: Abstract: These data orginate from interpretations of seismic reflection profile data. The derivative data are in a grid format and are intended to represent the thickness and distribution of Holocene deposits throughout the inner-continental shelf within the New York Bight. The gridded Holocene thickness is helpful in understanding the stratigraphic evolution of the inner-continental shelf, the regional sediment transport system, and the influence of the inner-shelf framework on coastal processes. The grid showing thickness of Holocene sediment is an important factor in the framework of the coastal region. 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: 19950501 Ending_Date: 19981101 Currentness_Reference: ground condition 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: 41.2322 South_Bounding_Coordinate: 40.15 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:431c02b3-31fa-4cfe-8014-17bb1f4b333c Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: geologic framework Theme_Keyword: sand thickness Theme_Keyword: sand resources Theme_Keyword: sand distribution Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: stratigraphic thickness Theme_Keyword: scientific interpretation Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: None Place_Keyword: New York Bight Place_Keyword: Long Island Place_Keyword: Atlantic Ocean Place_Keyword: nearshore Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Holocene Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: US Geological Survey Contact_Person: Jane F. Denny Contact_Position: Geologist, Seafloor Mapping Group Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 012543 Country: USA Contact_Voice_Telephone: 508-457-2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Data_Set_Credit: This data set resulted from a cooperative with the US Geological Survey and the US Army Corps of Engineers. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: These data are derived from 2D seismic reflection profiles that are spaced approximately 300 meters apart in the cross track-direction. 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. Thickness of sediment are set to zero where the base of the modern sand is not detected (below the vertical reolution of the seismic system) in the data. The horizontal resolution of the gridded data are constrained by the grid cell size of 100 meters. Horizontal interpolation is inherent in the gridding process. Logical_Consistency_Report: The gridded data were checked for consistency by plotting the point data over the the grid and comparing point values with grid cell values. Completeness_Report: The gridded data are limited by horizontal resolution of the grid cell size and spatial distribution of the original point data. Higher resolution data acquisition will likely result in a more detailed representation of sediment distribution and thickness. The data also represent a time interval of the data acquisition. Attributes may and probably do change with time. 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). Tow fish (sidescan) position was corrected for layback using acoustic slant range measurements and fish pressure depth measurements, otherwise corrected for layback by manual inputs for slant range and fish depth. Accuracy for slant range varies with distance from the ship and the noise conditions in the water, nominally up to 30 meters is better than 2 meters. Pressure depth is accurate to .1 meter. Manual slant range can use cable out measurements or estimates based on data processing results. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical positioning is not necessary to quantify thickness of sediment data. The data are referenced to the distance between the sea floor and the base of the modern sand using an acoustic velocity of 1630 m/s. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: David S. Foster Publication_Date: 1999 Publication_Time: unknown Title: Stratigraphic Framework Maps of the Nearshore Area of Southern Long Island, New York: ridded Elevation of coastal-plain Unconformity Edition: 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Open-File Report Issue_Identification: 1999-559 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/of/1999/of99-559/ Type_of_Source_Media: paper products Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Time_of_Day: unknown Source_Currentness_Reference: Publication Date Source_Citation_Abbreviation: Modern Sand Thickness along nearshore - southern Long Island Source_Contribution: These data were merged with pickes of Holocene thickness within the New York Bight in order to generate a composite Holocene isopach for the region. Source_Information: Source_Citation: Citation_Information: Originator: Linda Lotto Publication_Date: 2000 Publication_Time: Unknown Title: Seismic Stratigraphy and Quaternary Evolution of the New York Bight Inner Continental Shelf Edition: 1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Texas A&M University Issue_Identification: unpublished MS Thesis Publication_Information: Publication_Place: College Station, TX Publisher: Texas A&M University Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: Publication Date Source_Citation_Abbreviation: Holocene Thickness Source_Contribution: Picks of Holocene Thickness were merged with Holocene thickness within the nearshore off southern Long Island in order to generate a composite Holocene thickness for the New York Bight. Process_Step: Process_Description: Processed SEG-Y seismic data and associated shot navigation data acquired in 1998 within the New York Bight Apex were loaded into Landmark Seisworks interpretation software. The reflector at the base of the moderen marine sand was digitized along with the seafloor reflector. The difference in two-way travel time between horizons was calculated and converted to meters using an assumed velocity of 1630 m/s. This represents the thickness of Holocene deposits. The resolution of the CHIRP data was poor in the southeastern portion of the survey area. It was difficult to resolve Holocene deposits; the thickness of the deposit may be beyond the resolution of the system. These data were exported from seisworks to an ASCII format file. Process_Date: 2001 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 Process_Step: Process_Description: A Holocene Isopach was generated for a portion of the inner-continental shelf within the New York Bight Apex as part of an MS Degree in 1998 (Source_Information 2). The base of the Holocene was not easily resolved within the CHIRP data, and thus, there were a limited number of 'picks' to the base of the Holocene; limited data from which to generate an isopach. The Holocene Isopach was generated by hand using a 5 meter contour interval. Recently, the USGS has revisited these data in order to refine the existing Holocene Isopach. This original Holocene Isopach was digitized and imported into ArcView. The contours of Holocene thickness were converted into an ArcInfo grid file using the ArcInfo TopoGridTool. The resultant grid was then desampled by extracting grid nodes at five minute intervals along the survey tracklines. The grid was desampled in order to limit any bias in the data introduced by converting the 5 meter isopach contours to a continuous grid; i.e. to aviod imparting a higher resolution to the data than is reasonable. These data were then exported in ASCII format file. Process_Date: 2001 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 Process_Step: Process_Description: ASCII point data were merged and imported to Dynamic Graphics Inc., EarthVision surface modelling software. These data were gridded at a 100 meter grid cell size, yielding 1061 rows and 1853 columns grid size. This grid was exported as an ASCII format file. Process_Date: 1998 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 Process_Step: Process_Description: The exported ASCII Holocene thickness grid file from EarthVision was edited to create an ASCII grid file suitable for import to ArcView software. The order of rows were flipped, so that the file begins with the lower row, left column and ends with the upper row right column. An ArcView header that descibes the lower left origin of the grid, the grid cell size, the number of rows and columns, and the null value used (-9999). Source_Used_Citation_Abbreviation: sandiso Process_Date: 1999 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 Process_Step: Process_Description: The edited ASCII grid file was imported into ArcView software with the 3D Spatial Analyst extension. The file was saved as a Spatial Analyst (ArcInfo raster grid format) grid. Source_Used_Citation_Abbreviation: sandiso Process_Date: 1999 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: David S. Foster 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: 508-457-2271 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The resultant grid was clipped, using the GRIDCLIP script within ArcView 3.2, to the extents of the 1995 and 1996 surveys. The associated contour data (hand generated during processing step 2) are stored as an ESRI vector shapefile and fall within the 1995 and 1996 survey areas. These contour data are stored in the Geographic Coordinate System (decimal degrees, WGS84 Ellipsoid). 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 Process_Step: Process_Description: Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Completely changed the title based on an author (Jane Denny) supplied title. Added online links to the publication and data page in the Identification section. Added the standard order section to the Distribution Information, which included providing a link to download the data. The metadata describes both the grid and the contours, but the contours are the only dataset available for download in a zip file from the publication. Downloading the grid would require downloading individual files within folders. Fixed a source citation online link. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Process_Date: 20171222 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: An error was fixed in one of the originator names. Process_Date: 20180130 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: USGS Thesaurus keywords added to the keyword section. Process_Date: 20180720 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Crossref DOI link was added as the first link in the metadata. Process_Date: 20191118 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 454 Column_Count: 393 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: hiso 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. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Information_Content: The zip file contains the components of the shapefile. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2002/of02-152/ARCVIEW/SHAPE/SEISMIC/HISO/HISO_OF.ZIP Digital_Form: Digital_Transfer_Information: Format_Name: AIG Format_Information_Content: The link is to the folder containing the Esri binary grid. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2002/of02-152/ARCVIEW/SHAPE/SEISMIC/HISO/ Access_Instructions: Unfortunately, the components of the binary grid are not provided in a zip file. The folders for the grid and the info files are available from the link. Fees: none Metadata_Reference_Information: Metadata_Date: 20240318 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: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240318) Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: None Metadata_Use_Constraints: None