Army Corps Sediment Data from Maine and New Hampshire acquired in 1994 (MNHACOE shapefile)

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Frequently anticipated questions:


What does this data set describe?

Title:
Army Corps Sediment Data from Maine and New Hampshire acquired in 1994 (MNHACOE shapefile)
Abstract:
The data in this layer are from a study that evaluated and documented the historic and projected future dredging and dredged material disposal needs of the coastal rivers and harbors of the states of Maine and New Hampshire. Documentation of historic dredging and disposal activities was accomplished through the collection of data primarily from the files of the ACOE, New England Division, in Waltham, Massachusetts, supplemented by information from the states of Maine and New Hampshire and previously published reports. This historic dredging occurred between 1950-1993 and involved 499 dredging events.
  1. How might this data set be cited?
    Barnhardt, Walter, Hastings, Polly, and Poppe, Lawrence J., 2003, Army Corps Sediment Data from Maine and New Hampshire acquired in 1994 (MNHACOE shapefile): Open-File Report 03-001, U. S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelley, J.T., Belknap, D.F., Ward, L.G., Fitzgerald, D.M., and Larsen, P.F., 2003, Surficial Sediment Data from the Gulf of Maine, Georges Bank, and vicinity: a GIS Compilation: Open-File Report 03-001, U. S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details: 1 CD-ROM
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -70.824170
    East_Bounding_Coordinate: -67.371630
    North_Bounding_Coordinate: 44.800000
    South_Bounding_Coordinate: 42.888180
  3. What does it look like?
    http://pubs.usgs.gov/of/2003/of03-001/data/seddata/mnhacoe/mnhacoe-thumb.gif (GIF)
    Thumbnail image showing extent and distribution of data layer coverage.
    http://pubs.usgs.gov/of/2003/of03-001/data/seddata/mnhacoe/mnhacoe.gif (GIF)
    Image map showing extent and distribution of data layer coverage.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1994
    Currentness_Reference:
    publication date
  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):
      • Entity point (537)
    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 0.00001. Longitudes are given to the nearest 0.00001. 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?
    mnhacoe.dbf
    Shapefile Attribute Table (Source: ESRI)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the features.
    NAI_ID
    Numeric assigned by Normandeau Associates, Inc. to distinguish dredging projects (Source: Source Authors)
    Range of values
    Minimum:10
    Maximum:1023
    Units:projects
    Resolution:1
    NAI_DRDG
    Dredge event identification number assigned by Normandeau Associates, Inc. that ties a given dredge event to a project as identified by the NAI_ID (Source: Source Authors)
    Range of values
    Minimum:10.1
    Maximum:1023.1
    Units:dredge events
    Resolution:0.1
    SAMPLEID
    Number or letter combination identifying individual samples. (Source: Original ACOE documentation) Numerics and characters identifying individual samples
    LATITUDE
    Latitude coordinate of sample location (Source: Original ACOE documentation)
    Range of values
    Minimum:42.82885
    Maximum:44.80000
    Units:decimal degrees
    Resolution:0.00001
    LONGITUDE
    Longitude coordinate of sample location (Source: Original ACOE documentation)
    Range of values
    Minimum:-72.02633
    Maximum:-67.37163
    Units:decimal degrees
    Resolution:0.00001
    SOURCE
    Source of the data (e.g. organization and laboratory) (Source: Normandeau Associates, Inc) Organization and laboratory responsible for the data
    REGFILE
    Regulatory File Number (Source: ACOE) Characters and numerics identifying the regulatory file
    SOIL
    Dominant soil class (Source: ACOE) Name of the major lithology
    GRAINMED
    Median grain size (Source: ACOE)
    Range of values
    Minimum:0.0027
    Maximum:76.5
    Units:millimeters
    Resolution:0.0001
    GRAINQ1
    First quartile of the grain-size curve (Source: ACOE)
    Range of values
    Minimum:0.170
    Maximum:90.000
    Units:percent
    Resolution:0.0001
    GRAINQ2
    Second quartile of the grain-size curve (Source: ACOE)
    Range of values
    Minimum:0.015
    Maximum:76.5
    Units:percent
    Resolution:0.0001
    GRAINQ3
    Third quartile of the grain size curve (Source: ACOE)
    Range of values
    Minimum:0.003
    Maximum:90.0
    Units:percent
    Resolution:0.0001
    GRAVEL
    Percentage of gravel (Source: ACOE)
    Range of values
    Minimum:0
    Maximum:83.0
    Units:percent
    Resolution:.01
    SAND
    Percentage of sand (Source: ACOE)
    Range of values
    Minimum:0
    Maximum:99.9
    Units:percent
    Resolution:.01
    SILT
    Percentage of silt (Source: ACOE)
    Range of values
    Minimum:0
    Maximum:88.0
    Units:percent
    Resolution:.01
    CLAY
    Percentage of clay (Source: ACOE)
    Range of values
    Minimum:0
    Maximum:50.0
    Units:percent
    Resolution:.01
    FINES
    Percentage of fines (silt plus clay) (Source: ACOE)
    Range of values
    Minimum:0
    Maximum:93.0
    Units:percent
    Resolution:.01
    LITHOLOGY
    Textural descriptions of the sediment (Source: Compiler) Verbal descriptions of the sediment
    Entity_and_Attribute_Overview:
    Sample identifiers, navigation, grain-size parameters for samples from ACOE projects
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Walter Barnhardt
    • Polly Hastings
    • Lawrence J. Poppe
  2. Who also contributed to the data set?
    Please review the cross section information for the original data set credit to Normandeau Associates (1994). Walter Barnhardt for entering the data from the source report and Larry Poppe for creating the ArcView shapefile.
  3. To whom should users address questions about the data?
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov

Why was the data set created?

The purpose of this data layer is to release a digital version of the sediment data published in Normandeau Associates (1994).

How was the data set created?

  1. From what previous works were the data drawn?
    Information unavailable from original metadata. (source 1 of 1)
    Normandeau Associates, Inc., 1994, A Dredged Material Management Study for Coastal Maine and New Hampshire: Final Report R-13116.08, 220 p. plus appendicies, Normandeau Associates, Inc., Bedford, NH.

    Type_of_Source_Media: paper
    Source_Contribution: Information unavailable from original metadata.
  2. How were the data generated, processed, and modified?
    Date: 04-Dec-2002 (process 1 of 3)
    The navigation and remaining source information was manually entered into digital form and imported from an ASCII text file into an ArcView table. The table was later converted to an event theme in ArcView and saved as the final shapefile. Person who carried out this activity:
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
    Data sources used in this process:
    • mnhacoe.txt
    Data sources produced in this process:
    • mnhacoe.shp
    • mnhacoe.dbf
    • mnhacoe.shx
    Date: 02-Dec-2015 (process 2 of 3)
    Edits to the metadata were made to fix any errors that MP v 2.9.32 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.). The source information was incomplete and had to be modified to meet the standard. 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. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 20-Jul-2018 (process 3 of 3)
    USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Normandeau Associates, Inc., 1994, A Dredged Material Management Study for Coastal Maine and New Hampshire: Final report R-13116.08, 220 p. plus appedicies, Normandeau Associates, Inc., Bedford, NH.


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

  1. How well have the observations been checked?
    All attributes were entered and checked by the compilers in a consistent manner.
  2. How accurate are the geographic locations?
    The original studies were conducted over a number of years and navigational methods were not discussed in the Normandeau Associates report. Navigational accuracy is unknown.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Navigation, grain-size data, and identifiers are provided for 531 samples
  5. How consistent are the relationships among the observations, including topology?
    No additional checks for topological consistency were performed on this data.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
  1. Who distributes the data set? (Distributor 1 of 1)
    Lawrence J. Poppe
    U.S. Geological Survey
    Geologist
    384 Woods Hole Road
    Woods Hole, MA
    USA

    (508) 548-8700 x2314 (voice)
    (508) 457-2310 (FAX)
    lpoppe@usgs.gov
  2. What's the catalog number I need to order this data set? Downloadable Data
  3. What legal disclaimers am I supposed to read?
    Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: Five files (mnhacoe.shp, mnhacoe.dbf, mnhacoe.shx, mnhacoe.sbx, mnhacoe.sbn) comprising the ArcView point shapefile components, 'prj' and 'avl' files, metadata text file and browse graphic. in format SHP (version 3.2) ESRI point shapefile Size: 0.12
      Network links: http://pubs.usgs.gov/of/2003/of03-001/data/seddata/mnhacoe/mnhacoe.zip
      Media you can order: CD-ROM (Density 650 Mbytes) (format ISO 9660)
      Note: The user must have a computer system with a CD-ROM available. To browse the information contained on this CD-ROM, the user must have a current WWW browser available. The user must also have software installed on their computer to unzip the archived file.
    • Cost to order the data: None

  5. What hardware or software do I need in order to use the data set?
    These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Who wrote the metadata?

Dates:
Last modified: 20-Jul-2018
Metadata author:
Lawrence J. Poppe
U.S. Geological Survey
Geologist
384 Woods Hole Road
Woods Hole, MA
USA

(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpope@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/eastcoast/gome/samples/mnhacoe.shp.faq.html>
Generated by mp version 2.9.49 on Mon Sep 10 17:45:09 2018