MA State Outline (25k coast) (Polygons)

Metadata also available as - [Outline] - [Parseable text]

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, March 1991, MA State Outline (25k coast) (Polygons).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 286.466650
    East_Bounding_Coordinate: 290.101432
    North_Bounding_Coordinate: 42.888351
    South_Bounding_Coordinate: 41.230598

  3. What does it look like?

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

    Calendar_Date: March 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?

      Grid_Coordinate_System_Name: State Plane Coordinate System
      State_Plane_Coordinate_System:
      SPCS_Zone_Identifier: 2001
      Lambert_Conformal_Conic:
      Standard_Parallel: 41.716667
      Standard_Parallel: 42.683333
      Longitude_of_Central_Meridian: -71.500000
      Latitude_of_Projection_Origin: 41.000000
      False_Easting: 200000.000000
      False_Northing: 750000.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.010000
      Ordinates (y-coordinates) are specified to the nearest 0.010000
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      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?

    GISDATA.OUTLINE25K_POLY

    OBJECTID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    SHAPE
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    SHAPE.AREA

    SHAPE.LEN

    AREA_ACRES
    Area of polygon in acres

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?

    (process 1 of 3)
    Dataset copied.

    Data sources used in this process:

    • Server=sun420.env.state.ma.us; Service=esri_sde; User=gisdata; Version=SDE.DEFAULT

    (process 2 of 3)
    Dataset copied.

    Data sources used in this process:

    • Server=sun420.env.state.ma.us; Service=esri_sde; User=massgis; Version=SDE.DEFAULT

    Date: 30-Oct-2009 (process 3 of 3)
    The shapefile OUTLINE25K_POLY was downloaded from MassGIS (<http://www.mass.gov/mgis/outline.htm>), extracted to a temporary directory, then copied to the Duxbury to Hull GIS shapefile directory. Note this shapefile has not been modified from its original projection, NAD_1983_StatePlane_Massachusetts_Mainland_FIPS_2001. Except for this process step, no other edits have been made to this shapefile or metadata.

    Person who carried out this activity:

    Seth Ackerman
    U.S. Geological Survey
    Geologist
    384 Woods Hole Rd.
    Woods Hole, MA 02543-1598
    USA

    508-548-8700 x2315 (voice)
    508-457-2310 (FAX)
    sackerman@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: 30-Oct-2009
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 Feb 19 20:52:16 2010