MA State Outline (25k coast) (Polygons)

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Frequently-anticipated questions:

What does this data set describe?

Title: MA State Outline (25k coast) (Polygons)
Abstract:
The outline of the Commonwealth of Massachusetts. MassGIS digitized 1:25,000 linework from U.S. Geological Survey mylar map sheets for land boundaries; a 1:25,000 coastline was extracted from the MassGIS Hydrography (1:25,000) layer. OUTLINE25K_POLY contains the polygon feature class.
  1. How should this data set be cited?

    MassGIS, 031991, MA State Outline (25k coast) (Polygons).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -73.508240
    East_Bounding_Coordinate: -69.927977
    North_Bounding_Coordinate: 42.886818
    South_Bounding_Coordinate: 41.238237

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: Mar-1991
    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):

      • G-polygon (918)

    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 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Resolution: 1.000000
      Altitude_Encoding_Method:
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

    OUTLINE25K_POLY_dd

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA_ACRES
    Area of polygon in acres

    SHAPE_AREA
    Area of feature in internal units squared. (Source: ESRI)

    Positive real numbers that are automatically generated.

    SHAPE_LEN

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

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

    EOEA - MassGIS
    c/o Michael Trust
    Sr. Database Administrator
    251 Causeway Street
    Boston, MA 02114
    USA

    (617) 626-1000 (voice)
    (617) 626-1249 (FAX)
    michael.trust@state.ma.us

    Hours_of_Service: 9 AM - 5 PM

Why was the data set created?

Planning and analysis

How was the data set created?

  1. From what previous works were the data drawn?

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

    Date: 11-Nov-2011 (process 1 of 1)
    The polygon shapefile was downloaded from MassGIS (<http://www.mass.gov/mgis/>), and reprojected from Massachusetts State Plane NAD83 to WGS84 UTM Zone 19N using ArcMap (version 9.3): ArcToolbox -- Data Management Tools -- Projections and Transformations -- Feature -- Project. The shapefile was then reprojected for this report to geographic coordinate system (WGS84) using the same method as above

    Person who carried out this activity:

    Elizabeth A. Pendleton
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA 02543-1598

    (508) 548-8700x2259 (voice)
    (508) 457-2310 (FAX)
    ependleton@usgs.gov

  3. What similar or related data should the user be aware of?

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 observations, including topology?

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: None

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

    EOEA - MassGIS
    c/o Michael Trust
    Sr. Database Administrator
    251 Causeway Street
    Boston, MA 02114
    USA

    (617) 626-1000 (voice)
    (617) 626-1249 (FAX)
    michael.trust@state.ma.us

    Hours_of_Service: 9 AM - 5 PM
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 18-Nov-2011
Metadata author:
EOEA - MassGIS
c/o Michael Trust
Sr. Database Administrator
251 Causeway Street
Boston, MA 02114
USA

(617) 626-1000 (voice)
(617) 626-1249 (FAX)
michael.trust@state.ma.us

Hours_of_Service: 9 AM - 5 PM
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.25 on Fri Nov 18 14:33:36 2011