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1990 Forest Inventory

Frequently-anticipated questions:

What does this data set describe?

Title: 1990 Forest Inventory
Abstract:
Digital outline of forest stands derived from 1990 colour infrared aerial photography. Detailed information on forest species. General land cover identification of non-forest landtypes.
  1. How should this data set be cited?

     

    PEI Department of Environment, Energy & Forestry, Forests, Fish & Wil, 1990, 1990 Forest Inventory.

     

    This is part of the following larger work.

     

    .

     

     

  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: 1990
    Currentness_Reference: 1990 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 (117448)

       

    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?

     

    1990 Forest Inventory

     

    FID
    Internal feature number. (Source: ESRI)

     

    Sequential unique whole numbers that are automatically generated.

     

    Shape
    Feature geometry. (Source: ESRI)

     

    Coordinates defining the features.

     

    LANDTYPE
    General Land Type (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    KEY
    Stand Number (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    MAP
    Map Number (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    STAND
    Stand Number (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    COUNTY
    Provincial County

     

     

    DISTRICT
    Forest District (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    AREA
    Area in Hectares

     

     

    GROUP
    Plant Community group as defined by D. Sobey

     

     

    SPEC1
    Land cover or dominant species code (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    PER1
    Percentage of Forest Species 1 in Polygon

     

     

    SPEC2
    Second most dominant species code (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    PER2
    Percentage of Forest Species 2 in Polygon

     

     

    SPEC3
    Third most dominant species code (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    PER3
    Percentage of Forest Species 3 in Polygon

     

     

    SPEC4
    Fourth most dominant species code (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    PER4
    Percentage of Forest Species 4 in Polygon

     

     

    SPEC5
    Fifth most dominant species code (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    PER5
    Percentage of Forest Species 5 in Polygon

     

     

    HEIGHT
    Height in Metres

     

     

    CROWN
    Alpha code for Crown Closure (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    ORG_HIST
    Origin or history of the polygon (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

    DI
    Defoliation of treed polygons in 25% classes 1= 0-25% 2-26-50% etc. (Source: www.gov.pe.ca/gis/1990ForestInventoryCodes)

     

     

     

     

 

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
    Canada

    902 569-7598 (voice)
    902-368-4713 (FAX)
    mlmccourt@gov.pe.ca

     

Why was the data set created?

Developed for the 1990 State of the Forest Report of PEI

 

How was the data set created?

  1. From what previous works were the data drawn?

     

    (source 1 of 1)
    Type_of_Source_Media: Aerial Photography
    Source_Scale_Denominator: 17 500

     

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

     

    Date: 1990 (process 1 of 5)
    Colour infrared aerial photography flown at 1:17 500

    Person who carried out this activity:

    PEI Dept of Environment, Energy & Forestry
    c/o Mary Lynn McCourt
    GIS Supervisor
    PO Box 2000
    Charlottetown, PE C1A 7N8
    Canada

    902-3569-7598 (voice)
    902-368-5661 (FAX)
    mlmccourt@gov.pe.ca

    (process 2 of 5)
    Forest stand boundaries delineated on aerial photography photo windows.,

     

    (process 3 of 5)
    Photo interpreted for forest species / general land cover types and database created

     

    (process 4 of 5)
    Lines transferred from photos to 17 500 scale, hardcopy base map using a light table.

     

    (process 5 of 5)
    Maps digitized in CARIS and database integrated using INGRES

     

  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?

    85%

     

  2. How accurate are the geographic locations?

    1-10

     

  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
    c/o Sandra Jamieson
    GIS Technician
    PO Box 2000
    Charlottetown, PE C1A 7N8
    Canada

    902-368-5634 (voice)
    902-368-5661 (FAX)
    sljamieson@gov.pe.ca

  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: 115.433
      Network links:  
      Media you can order: CD-ROM

       

       

    • Cost to order the data: free

       

    • Special instructions:

       

      www.gov.pe.ca/gis

       

     

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

     

    GIS Mapping Software

     

 

Who wrote the metadata?

Dates:
Last modified: 25-Nov-2010
Metadata author:
PEI Dept of Environment, Energy & Forestry, Forests, Fish & Wildlife Division
c/o Mary Lynn McCourt
GIS Supervisor
PO Box 2000
Charlottetown, PEI C1A 7N8
Canada

902-569-7598 (voice)
902-368-5661 (FAX)
mlmccourt@gov.pe.ca

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 08:54:32 2010
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