Stratigraphic Framework Maps of the Nearshore Area of the inner-continental shelf within the New York Bight: Gridded Thickness of Quaternary Sediment
Metadata also available as - [Questions & Answers] - [Parseable text]Metadata:
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator: Jane F. Denny
- Originator: David S. Foster
- Originator: William C. Schwab
- Originator: B. Ann Swift
- Publication_Date: 2002
- Publication_Time: Unknown
- Title:
- Stratigraphic Framework Maps of the Nearshore Area of the inner-continental
shelf within the New York Bight: Gridded Thickness of Quaternary
Sediment
- Edition: 1
- Geospatial_Data_Presentation_Form: map
- 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:
-
Mapping the thickness of the Quaternary sediment is useful
for delineating the geologic framework of the New York Bight
inner-continental shelf. This in turn aids 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 the thickness of Quaternary 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: None
- Theme_Keyword: geologic framework
- Theme_Keyword: grid
- Theme_Keyword: Quaternary
- Theme_Keyword: sediment thickness
- Place:
-
- Place_Keyword_Thesaurus: None
- Place_Keyword: Atlantic Ocean
- Place_Keyword: Long Island
- Place_Keyword: nearshore
- Place_Keyword: New York Bight
- Temporal:
-
- Temporal_Keyword_Thesaurus: Quaternary
- Temporal_Keyword: Quaternary
- Temporal_Keyword: Pleistocene
- 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
- Hours_of_Service: Monday-Friday, 8am-5pm, Eastern Standard Time
- Data_Set_Credit:
-
Prepared by the US Geological Survey in cooperation with 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 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. The
horizontal resolution of the gridded data are constrained by
the grid cell size of 150 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 of elevation of the coastal-plain unconformity change
very little over 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). 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.
Because the elevation of the coastal-plain unconformity
was calculated by addy Quaternary thickness to a
coastal elevation model
//www.ngdc.noaa.gov/mgg/coastal/coastal.html), the
horizontal accuracy is constrained by the reference to
USGS 3-arc-second topographic data (nominal resolution
of 90 meters). Offshore hydrographic positioning that
is estimated to be 30 m or better closer to shore.
Onshore well locations were digitized from paper maps
(Sutter and others, 1949).
- Vertical_Positional_Accuracy:
-
- Vertical_Positional_Accuracy_Report:
-
Vertical positioning accuracy of the offshore data is
based on the seafloor reference used. coastal-plain
elevation in the offshore was determined by adding
Quaternary sediment thickness (derived from two-way
travel time between the coastal-plain unconformity an
the seafloor using an acoustic velocity of 1630 m/s) to
a topographic and bathymetric elevation model
//www.ngdc.nooa.gov/mgg/coastal/coastal.html). This
costal elevation model is referenced to USGS
3-arc-second DEM data that has a vertical accuracy of 1
meter and NOS hydrographic data that has an accuracy of
1/10 of a meter. The entire model is referenced to mean
low water or mean or low water. Onshore well elevations
were taken from well logs descriptions (Sutter and
others, 1949). Finally the Quaternary sediment
thickness grid was calculated from the difference of
the coastal-plain elevation grid and the coastal
elevation model.
- Lineage:
-
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: US Geological Survey
- Publication_Date: 2002
- Publication_Time: Unknown
- Title:
-
High-Resolution Quaternary seismic
stratigraphy of the New York Bight
continental shelf
- Edition: 1
- Geospatial_Data_Presentation_Form: map
- Series_Information:
-
- Series_Name: US Geological Survey Open-File Report
- Issue_Identification: Open-File Report 02-152
- Publication_Information:
-
- Publication_Place: Woods Hole, MA
- Publisher: US Geological Survey
- Online_Linkage: <http://woodshole.er.usgs.gov/project-pages/newyork>
- Type_of_Source_Media: digital raster data
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20020000
- Source_Currentness_Reference: Publication Date
- Source_Citation_Abbreviation: Grid of elevation of the coastal-plain unconformity (cp_grd)
- Source_Contribution:
-
The grid representing depth to the coastal-plain Unconformity was used, in
conjunction with bathymetry, to generate the Quaternary Isopach.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: NOAA
- Publication_Date: 19990000
- Title: Exposing the U.S. Coastal Zone
- Edition: 1
- Geospatial_Data_Presentation_Form: model
- Series_Information:
-
- Series_Name: EOS, Transactions of the American Geophysical Union
- Issue_Identification: vol. 80, no. 4
- Publication_Information:
-
- Publication_Place: Boulder, CO
- Publisher: NOAA
- Online_Linkage: <http://www.ngdc.noaa.gov/mgg/coastal/coastal.html>
- Type_of_Source_Media: DVD-ROM
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 19990000
- Source_Currentness_Reference: Publication Date
- Source_Citation_Abbreviation: Coastal Relief Model
- Source_Contribution:
-
The NOAA Coastal Relief Model was used to reference
(topograhic base) subbottom surfaces to mean low water
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Linda Lotto
- Publication_Date: 20000000
- 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: maps
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 19490000
- Source_Currentness_Reference: Publication Date
- Source_Citation_Abbreviation: Onshore Well Logs
- Source_Contribution:
-
Well logs from the New York State Department of
Conservation and the USGS were analyzed by Lotto (2000)
to determine the elevation of the coastal-plain
unconformity on land.
- Process_Step:
-
- Process_Description:
-
Processed SEG-Y seismic data and associated shot
navigation data were loaded into Landmark Seisworks
interpretation software. The coastal-plain unconformity
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 nearshore
Quaternary sediment thickness. These data were exported
from seisworks to an ASCII format file.
- Process_Date: 20010000
- 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 ASCII point data were imported to Dynamic Graphics
Inc., EarthVision surface modelling software. The
points representing Quaternary sediment thickness were
gridded with a 200 meter grid cell size. Bathymetric
data that were collected the same time as the seismic
profile data were gridded using a 150 m grid cell size.
The Quaternary sediment thickness grid was addded to
the bathymetric grid to yield a grid for the nearshore
elevation of the Coastal plain unconformity reference
to mean sea water. This grid was exported as an ASCII
format file.
- Process_Date: 20010000
- 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 file from the nearshore coastal-plain unconformity elevation was combined with onshore
well elevations of the coastal-plain unconformity.
- Process_Date: 20010000
- 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 total onshore and nearshore coastal-plain
unconformity elevations were imported into EarthVision.
The data were gridded at a 200 m grid spacing.
- Process_Date: 20010000
- 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 grid of the elevation of Coastal plain unconformity
was merged with the grid of the elevation of Coastal
plain unconformity (cp_elev within source information)
generated for the nearshore offshore of southern Long
Island within EarthVision by using the union command.
Minor edits were necessary along the boundaries of the
point of union.
- 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:
-
The Quaternary thickness grid was calculated by taking
the difference between the coastal-plain unconformity
grid and the coastal releif model. The Quaternary
thickness grid was exported as an ASCII file.
- Process_Date: 20010000
- 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 Quaternary sediment 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).
- Process_Date: 20010000
- 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 an ArcInfo raster grid format.
- Process_Date: 20010000
- 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:
-
Contour data were generated from the Quaternary Isopach Gridded data at a 5 meter
contour interval within EarthVision. These data were exported and converted to an
ESRI generate format. The contour interval associated with each contour was saved as an
ASCII file and read into ArcView in table format. The generate file was converted to a
vector shapefile. The table and attritube table of the contour shapefile were joined based
on unique contour IDs. The attribute table was then editted to include the associated contour
value with each contour line, and the join was removed.
- 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:
-
The grid and contour data were clipped, using the GRIDCLIP script within ArcView 3.2,
to the extents of the 1995 and 1996 survey areas.
- 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
- Row_Count: 242
- Column_Count: 324
- 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: qiso
- 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
Generated by mp version 2.7.17 on Fri Apr 12 09:19:26 2002