Sediment texture samples taken in HARS in 1996 and 1998

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
  8. What are the components of this data set?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

Title: Sediment texture samples taken in HARS in 1996 and 1998

Abstract:

This project presents maps of the sea floor in GIS format of the Historic Area Remedition Site (HARS), located offshore of New York and New Jersey. The data were collected with a multibeam sea floor mapping system on surveys conducted November 23 - December 3, 1996, October 26 - November 11, 1998, and April 6 - 30, 2000. The maps show sea floor topography, shaded relief, and backscatter intensity (a measure of sea floor texture and roughness) at a spatial resolution of 3 m/pixel, and locations of dredged material placed on the sea floor. The sea floor of the HARS, approximately 9 square nautical miles in area, is being remediated by placing at least a one-meter of clean dredged material on top of the existing surface sediments that exhibit varying degrees degradation resulting from previous disposal of dredged and other material. Comparison of the topography and backscatter intensity from the three surveys show changes in topography and surficial sediment properties resulting from placement of dredged material in 1996 and 1997 prior to designation of the HARS, as well as placement of material for remediation of the HARS. This study is carried out cooperatively by the U.S. Geological Survey and the U.S. Army Corps of Engineers.

1. How should this data set be cited?

   U.S. Geological Survey, 2000, Sediment texture samples taken in HARS in 1996 and 1998:.

   Online Links:

   • <URL: https://pubs.usgs.gov/openfile/of00-503>

   This is part of the following larger work.

   Butman, Bradford, Danforth, W.W., Knowles, S.C., May, Brian, and Serrett, Laurie, 2000, Sea Floor Topography and Backscatter Intensity of the Historic Area Remediation Site (HARS), Offshore of New York, Based on Multibeam Surveys Conducted in 1996, 1998, and 2000: Open File Report OFR00-503, U.S. Geological Survey, Reston, VA.

   Online Links:

   • <URL: https://pubs.usgs.gov/openfile/of00-503>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -73.900124

   East_Bounding_Coordinate: -73.812264

   North_Bounding_Coordinate: 40.433605

   South_Bounding_Coordinate: 40.349975

3. What does it look like?
   
   
4. Does the data set describe conditions during a particular time period?
   
   

   Beginning_Date: 1996

   Ending_Date: 1998

   Currentness_Reference: ground condition

5. What is the general form of this data set?
   
   

   Geospatial_Data_Presentation_Form: vector digital data

6. How does the data set represent geographic features?
   
   
   1. How are geographic features stored in the data set?
      
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • point
   2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000089992. Longitudes are given to the nearest 0.000089992. Latitude and longitude values are specified in Decimal degrees.
      
      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
      

7. How does the data set describe geographic features?

   sedtexture_1996.shp

   Arcview shapefile (Source: ESRI)

   FID

   Internal feature number. (Source: ESRI)
   
   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Value	Definition
   point	feature geometry name

   Latitude

   location of y coordinate (Source: ESRI)

   Range of values
   Minimum:	40.35101
   Maximum:	40.42375
   Units:	decimal degrees

   Longitude

   x coordinate of feature (Source: ESRI)

   Range of values
   Minimum:	-73.85764
   Maximum:	-73.82913
   Units:	decimal degrees

   Zgravel

   percentage of sample gravel (Source: Folk)
   
   

   Range of values
   Minimum:	0
   Maximum:	45
   Units:	Percentage of total sample weight

   Zsand

   percentage of sample sand (Source: Folk)
   
   

   Range of values
   Minimum:	12.8
   Maximum:	99.7
   Units:	Percentage of total sample weight

   Zsilt

   percentage of sample silt (Source: Folk)
   
   

   Range of values
   Minimum:	0.1
   Maximum:	66.2
   Units:	Percentage of total sample weight

   Zclay

   percentage of sample clay (Source: Folk)
   
   

   Range of values
   Minimum:	0
   Maximum:	31.2
   Units:	Percentage of total sample weight

   sedtexture_1998.shp

   Arcview shapefile (Source: ESRI)

   FID

   Internal feature number. (Source: ESRI)
   
   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Value	Definition
   point	feature geometry name

   Latitude

   location of y coordinate (Source: ESRI)

   Range of values
   Minimum:	40.37545
   Maximum:	40.42682
   Units:	decimal degrees

   Longitude

   x coordinate of feature (Source: ESRI)

   Range of values
   Minimum:	-73.89725
   Maximum:	-73.82092
   Units:	decimal degrees

   Zgravel

   percentage of sample gravel (Source: Folk)
   
   

   Range of values
   Minimum:	0
   Maximum:	3.7
   Units:	Percentage of total sample weight

   Zsand

   percentage of sample sand (Source: Folk)
   
   

   Range of values
   Minimum:	3.9
   Maximum:	99.6
   Units:	Percentage of total sample weight

   Zsilt

   percentage of sample silt (Source: Folk)
   
   

   Range of values
   Minimum:	0.3
   Maximum:	66.3
   Units:	Percentage of total sample weight

   Zclay

   percentage of sample clay (Source: Folk)
   
   

   Range of values
   Minimum:	0.1
   Maximum:	29.9
   Units:	Percentage of total sample weight

   
   
   

   Entity_and_Attribute_Overview:

   In this data report only seven of the attributes of the data were utilised. A more complete description of the other data fields can be found at <URL: https://pubs.usgs.gov/openfile/of00-358/>.

   Entity_and_Attribute_Detail_Citation: Unknown

8. What are the components of this data set?
   
   

   sedtexture_1996.shp (An Arcview shapefile with points)

   location of sediment texture samples taken within the HARS in 1996

   sedtexture_1998.shp (An Arcview shapefile with points)

   location of sediment texture samples taken within the HARS in 1998

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   
   
   • U.S. Geological Survey
2. Who also contributed to the data set?

   Interpretation by Bradford Butman, data processing by William W. Danforth and Laurie Serrett, metadata written by Tammie J. Middleton

3. To whom should users address questions about the data?

   Brad Butman
   United States Geological Survey
   Oceanographer
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   
   508.457.2212 (voice)
   508.457.2309 (FAX)
   bbutman@usgs.gov
   

Why was the data set created?

The purpose of this project is to map the surficial geology of the sea floor of Historic Area Remediation Site (HARS) and changes in surficial characteristics over time. This GIS project presents multibeam and other data in a digital format for analysis and display by scientists, policy makers, managers and the general public.

How was the data set created?

1. From what previous works were the data drawn?
   
   

   U.S.G.P.O. (source 1 of 1)

   Poppe, Larry, Hastings, Polly, and Polloni, Chris, 2000, USGS EAST-COAST SEDIMENT ANALYSIS: PROCEDURES, DATABASE, AND GEOREFERENCED DISPLAYS: Open File Report of00-358, U.S. Geological Survey, Reston, VA.

   Online Links:

   • <URL: https://pubs.usgs.gov/openfile/of00-358/>

   Type_of_Source_Media: online and CDROM

   Source_Contribution:

   Provided the boundary coordinates delineating the Historic Area Remediation Site

2. How were the data generated, processed, and modified?

   Date: 2000 (process 1 of 1)

   The shapefile was taken from the CD and only the sample locations that fall within the boundaries of the HARS were selected and saved into a new shapefile. To display the pie charts, an extension called Diagram Wizard was used. It is an extension that needs to be purchased for Arcview.

How reliable are the data; what problems remain in the data set?

1. How well have the observations been checked?
   
   Unknown
2. How accurate are the geographic locations?
   
   Unknown
3. How accurate are the heights or depths?
   
   Unknown
4. Where are the gaps in the data? What is missing?
   
   These data are known to be complete.
5. How consistent are the relationships among the observations, including topology?

   These data are considered to be logically consistent.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:

These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data 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 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 materials.

Use_Constraints:

These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data 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 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 materials.

1. Who distributes the data set? (Distributor 1 of 2)

   Bradford Butman
   U.S. Geological Survey
   Oceanographer
   384 Woods Hole Road
   Woods Hole, Massachusetts 02543-1598
   USA
   
   508.548.8700x2212 (voice)
   508.457.2309 (FAX)
   bbutman@usgs.gov
   

   Hours_of_Service: 8 a.m. to 5 p.m. EST

2. What's the catalog number I need to order this data set?
3. What legal disclaimers am I supposed to read?

   These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data 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 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 materials.

4. How can I download or order the data?

   ---

1. Who distributes the data set? (Distributor 2 of 2)

   U.S. Geological Survey Information Services
   Box 25286 Denver Federal Center
   Denver, Colorado 80225-0046
   USA
   

   303.202.4700 (voice)
   303.202.4188 (FAX)
   

   Hours_of_Service: 8 a.m. to 5 p.m. Mountain Time

2. What's the catalog number I need to order this data set?
3. What legal disclaimers am I supposed to read?

   These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data 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 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 materials.

4. How can I download or order the data?

Who wrote the metadata?

Dates:

Last modified: 19-Oct-2001

Metadata author:

Brad Butman
United States Geological Survey
Oceanographer
384 Woods Hole Road
Woods Hole, MA 02543-1598

508.548.8700x2212 (voice)
508.457.2309 (FAX)
bbutman@usgs.gov

Metadata standard:

FGDCContent Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)