Sediment Type, Hudson River estuary, 2004

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Identification_Information

Citation:
Citation_Information:
Originator: Lamont-Doherty Earth Observatory (LDEO)
Publication_Date: 2005
Title: Sediment Type, Hudson River estuary, 2004
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: https://cugir.library.cornell.edu/catalog/cugir-007884
Description:
Abstract: This dataset provides sediment types found on the floor of the Hudson River Estuary. The sediment type interpretation is based on the grain size analysis of the cores and grabs with some guidance from acoustic backscatter data collected with sidescan sonar. Sediment profile imagery (SPI) has also been used to supplement these interpretations. Since the first guide in developing this interpretation is contouring the results of the grain size interpretation there is deviation from the side scan images. In most research on sediments, grain size data is given in phi intervals rather than in microns, millimeters, or inches. One phi unit is equal to one Udden-Wentworth grade. Phi diameter is computed by taking the negative log of the diameter in millimeters. We have identified 9 major classes of sediment based on the Wentworth classification.
Purpose: In 1996, the New York State Department of Environmental Conservation (DEC) initiated an effort to map the benthic habitat of the Hudson River Estuary as part of a larger Hudson River Action Plan. This project includes extensive mapping using sidescan sonar, sub-bottom profiling, single and multi-beam bathymetric sonars, as well as collecting ground truth data with sediment cores, grab samples, and sediment profiling imagery (SPI). The goal of the project is the creation of a comprehensive data set that includes detailed interpretive maps of the physical environment of the floor of the estuary. An overview of the first phase of the benthic mapping project can be found in Bell, et al. (2006)
Supplemental_Information: See also <http://benthic.info> More extensive discussion of the methods and interpretation can be found in the following publications: Bell, R.E., et al., 2006. "Benthic habitat mapping in the Hudson River Estuary", in The Hudson River Estuary (Levinton and Waldman, eds.), Cambridge Univ Press., pp. 51-64. // Carbotte, S.M., et al., 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., et al., 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., et al., 2004. Process-related classification of acoustic data from the Hudson River Estuary. Marine Geology 209(1-4): 131-145. // Nitsche, F.O. et. al., 2005. Integrative acoustic mapping reveals Hudson River sediment processes and habitats. EOS 86(24): 225. // Nitsche, F.O. et al., 2005. "A seabed classification approach based on multiple acoustic sensors in the Hudson River Estuary", in High Resolution Morphodynamics and Sedimentary Evolution of Estuaries (FitzGerald and Knight, eds.), Springer, pp. 33-55. // Pekar, S.F., et al., 2004. Estuarine processes and their stratigraphic record: paleosalinity and sedimentation changes in the Hudson Estuary (North America). Marine Geology 209(1-4): 113-129. // Strayer, D.L., et al., 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: 2004
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.107056
East_Bounding_Coordinate: -73.684992
North_Bounding_Coordinate: 42.751979
South_Bounding_Coordinate: 40.601828
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: estuary
Theme_Keyword: sediments
Theme_Keyword: mud
Theme_Keyword: sand
Theme_Keyword: gravel
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geology
Theme_Keyword: environment
Theme_Keyword: inlandWaters
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: CUGIR Category
Theme_Keyword: environment
Theme_Keyword: inland waters
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: LCSH
Place_Keyword: Hudson River (N.Y. and N.J.)
Place_Keyword: Hudson River Estuary (N.Y. and N.J.)
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: John Ladd
Contact_Organization: Hudson River National Estuarine Research Reserve, Hudson River Estuary Program, New York State Department of Environmental Conservation
Contact_Position: Benthic Mapping Coordinator
Contact_Address:
Address_Type: mailing and physical
Address: Bard College Field Station
City: Annandale
State_or_Province: New York
Postal_Code: 12504
Country: USA
Contact_Voice_Telephone: 845-758-7010
Contact_Electronic_Mail_Address: jxladd@gw.dec.state.ny.us
Browse_Graphic:
Browse_Graphic_File_Name: https://cugir-data.s3.amazonaws.com/00/78/84/preview.png
Browse_Graphic_File_Description: preview of the dataset
Browse_Graphic_File_Type: PNG

Data_Quality_Information

Attribute_Accuracy:
Attribute_Accuracy_Report: All sediment grab samples were positioned using Differential GPS (DGPS), with accuracy within 1 meter. The polygon borders are based on the samples (spaced an average of 0.5 km apart) and the sidescan sonar data. The sediment type polygons represent the general trend, but local misinterpretations are possible.
Logical_Consistency_Report: No information provided.
Completeness_Report: The data cover the Hudson River Estuary from the Verrazano-Narrows Bridge to Troy, with the exception of some areas shallower than 4m, which have not been surveyed and sampled completely.
Lineage:
Process_Step:
Process_Description: Processed bathymetry, sidescan sonar, and sub-bottom tracks were loaded into ArcGIS. Polygons were drawn manually in ArcGIS around the areas with distinct different characteristics and each polygon was assigned a sediment type. This interpretation is based on the grain size analysis of the cores and grabs with some guidance from the backscatter data. The SPI data has also been used to supplement these interpretations. Since the first guide in developing this interpretation is contouring the results of the grain size interpretation there is deviation from the side scan images. In most research on sediments, grain size data is given in phi (f) intervals rather than in microns, millimeters, or inches. One phi unit is equal to one Udden-Wentworth grade. Phi diameter is computed by taking the negative log of the diameter in millimeters Samples have been classified into 9 different groups: Main class is based on largest grain size fraction. If the second largest grain size fraction was above 10% this has been used as a modifier.
Process_Date: Unknown

Spatial_Data_Organization_Information

Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 303

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: 0.000512
Ordinate_Resolution: 0.000512
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

Entity_Type:
Entity_Type_Label: Sediment type polygon
Entity_Type_Definition: Region having a particular sediment type, based on grain size composition.
Entity_Type_Definition_Source: LDEO
Attributes:
Name Description Values
OBJECTID Internal ID 1 to 304
TYPE Sediment type based on grain size composition. coded values
AREA Area in square meters 0 to unbounded
PERIMETER Perimeter in meters 0 to unbounded

Distribution_Information

Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Albert R. Mann Library
Contact_Address:
Address_Type: mailing and physical
Address: Cornell University
City: Ithaca
State_or_Province: New York
Postal_Code: 14853
Contact_Voice_Telephone: 607-255-5406
Contact_Electronic_Mail_Address: mann-ref@cornell.edu
Distribution_Liability: Cornell University provides these geographic data "as is". Cornell University makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. Cornell University 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 files have been processed successfully on computers at Cornell University, no warranty is made by Cornell University regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Information_Content: zipped shapefile
File_Decompression_Technique: zip
Transfer_Size: 0.44
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: metadata
Format_Information_Content: FGDC XML metadata
Digital_Transfer_Option:
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Format_Name: HTML metadata
Format_Information_Content: FGDC HTML metadata
Digital_Transfer_Option:
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Network_Address:
Digital_Form:
Digital_Transfer_Information:
Format_Name: KML
Format_Information_Content: generated KML, via WFS
Digital_Transfer_Option:
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Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoJSON
Format_Information_Content: generated GeoJSON, via WFS
Digital_Transfer_Option:
Online_Option:
Digital_Form:
Digital_Transfer_Information:
Format_Name: OGC:WMS
Format_Information_Content: WMS, from GeoServer
Digital_Transfer_Option:
Online_Option:
Fees: None

Metadata_Reference_Information

Metadata_Date: 20190524
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Albert R. Mann Library
Contact_Address:
Address_Type: mailing and physical
Address: Albert R. Mann Library
City: Ithaca
State_or_Province: New York
Postal_Code: 14853
Country: USA
Contact_Voice_Telephone: 607-255-5406
Contact_Electronic_Mail_Address: mann-ref@cornell.edu
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time