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1935 Forest Inventory

Frequently-anticipated questions:

What does this data set describe?

Title: 1935 Forest Inventory
Digital Outline of Forest Stands based on 1935 Aerial Photography, Includes Data on Forests
  1. How should this data set be cited?


    PEI Department of Environment, Energy & Forestry, Forests, Fish & Wil, 1994, 1935 Forest Inventory.



  2. What geographic area does the data set cover?


    West_Bounding_Coordinate: 65
    East_Bounding_Coordinate: 61
    North_Bounding_Coordinate: 47
    South_Bounding_Coordinate: 45


  3. What does it look like?



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


    Calendar_Date: 1935
    Currentness_Reference: 1935 aerial photography


  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 (57553)


    2. What coordinate system is used to represent geographic features?


      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000000
      Ordinates (y-coordinates) are specified to the nearest 0.000000
      Planar coordinates are specified in meters


      The horizontal datum used is North American Datum of 1983 (CSRS).
      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.



  7. How does the data set describe geographic features?


    1935 Forest Inventory


    Internal feature number. (Source: ESRI)


    Sequential unique whole numbers that are automatically generated.


    Feature geometry. (Source: ESRI)


    Coordinates defining the features.


    Unique polygon key - combined stand and map number (Source: <>)



    Forest Map



    Polygon number - unique to map



    General land cover (Source:



    Major tree category - hardwood, softwood, mixedwood (Source:



    History of stand if discernible (Source:



    size of polygon in hectares



    Usage of land if discernible (Source:






Who produced the data set?

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


    • PEI Department of Environment, Energy & Forestry, Forests, Fish & Wildlife Division


  2. Who also contributed to the data set?



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


    PEI Dept of Environment, Energy & Forestry, Forests, Fish & Wildlife Division
    c/o Mary Lynn McCourt
    GIS Supervisor
    PO Box 2000
    Charlottetown, PEI C1A 7N8

    902-569-7598 (voice)
    902-368-4713 (FAX)


Why was the data set created?

Describes landtype, species, area and landuse of forest polygons on PEI in 1935.


How was the data set created?

  1. From what previous works were the data drawn?


    (source 1 of 1)
    Type_of_Source_Media: B & W Aerial Photography
    Source_Scale_Denominator: approximately 15 400


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


    Date: 1993 (process 1 of 2)
    PROCESS STEP 1 - Interpretation of forest cover types from 1935 B & W photography - 15 400 scale


    (process 2 of 2)
    PROCESS STEP 2 - Information transferred to hardcopy map at 1 : 10 000 and digitized using CARIS


  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?

    10-20 Metres


  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: See Digital Data Agreement
Use_Constraints: See Digital Data Agreement


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


    PEI Dept. of Environment, Energy & Forestry, Forests, Fish & Wildlife Division
    c/o Sandra Jamieson
    GIS Technician
    440 University Avenue
    Charlottetown, PE C1A 7N6

    902-368-5634 (voice)
    902-368-5661 (FAX)

    Hours_of_Service: 0800-1600
  2. What's the catalog number I need to order this data set?

    Downloadable Data,


  3. What legal disclaimers am I supposed to read?


    See Digital License Agreement for GIS Data


  4. How can I download or order the data?


    • Availability in digital form:


      Data format: ESRI Shapefile, MapInfo MID/MIF (version ESRI ArcGIS 8.3, MapInfo Pro 7.0) Size: 67.677
      Network links:  
      Media you can order: CD-ROM



    • Cost to order the data: free


    • Special instructions:




  5. What hardware or software do I need in order to use the data set?


    GIS Mapping Software



Who wrote the metadata?

Last modified: 25-Nov-2010
Metadata author:
PEI Dept of Environment, Energy & Forestry, Forests, Fish & Wildlife Division
c/o Mary Lynn McCourt
GIS Supervisor
440 University Avenue
Charlottetown, PEI C1A 7N6

902-569-7598 (voice)
902-368-5661 (FAX)

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.6 on Fri Dec 10 08:52:34 2010

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