Vegetation - Typed by photo interpretation (piveg)

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Frequently-anticipated questions:


What does this data set describe?

Title: Vegetation - Typed by photo interpretation (piveg)
Abstract:
This is a photo-interpreted vegetation layer that is more detailed and done to higher more consistent standard than the forestwide vegetation layer (vege). Forest land is typed to a 5 acre minimum for federal and state ownership, 20 acre for private.
Supplemental_Information:
The photo interperting was done by Will Koenitzer, and people trained by Will Koenitzer, to maintain consistancy. Photo interpreted from 1:12000 aerial photos flown 1989 - 1995.
  1. How should this data set be cited?

    Forest, Siuslaw National , and Will Koenitzer, Photo interepreter, 2 June 2003, Vegetation - Typed by photo interpretation (piveg).

    Online Links:

    • \\ds.fs.fed.us\EFS\\fs\reference\gis\r06_siu\data\veg

    Other_Citation_Details:
    Typing Specification document: /fsapps/fsother/gis/dictionary/datafiles/vegtyping.html

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -124.241506
    East_Bounding_Coordinate: -123.537250
    North_Bounding_Coordinate: 45.380861
    South_Bounding_Coordinate: 43.681001

  3. What does it look like?

    File:///j:/fsfiles/ref/library/gis/siu/piveg/map.gif (GIF)

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

    Beginning_Date: 1989
    Ending_Date: 1995
    Currentness_Reference: ground condition

  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):

      • Complete chain (51102)
      • Label point (17320)
      • GT-polygon composed of chains (17383)
      • Point (1936)
      • Label point (0)

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

      The map projection used is Albers Conical Equal Area.

      Projection parameters:
      Standard_Parallel: 43.000000
      Standard_Parallel: 48.000000
      Longitude_of_Central_Meridian: -120.000000
      Latitude_of_Projection_Origin: 34.000000
      False_Easting: 600000.000000
      False_Northing: 0.000000

      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.
      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?

    veg.pat

    FID
    Internal feature number. (Source: ESRI)

    Frequency of measurement: As needed

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

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

    Positive real numbers that are automatically generated.

    PERIMETER
    Perimeter of feature in internal units. (Source: ESRI)

    Positive real numbers that are automatically generated.

    VEG#
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    VEG-ID
    User-defined feature number. (Source: ESRI)

    PHOTO_NO
    The number of the photo the polygon was digitized from.

    STAND_TAG
    Unique number to identify the stand and link it to the database.

    5 digit integers

    LAY_TYPE
    Layer type classification

    ValueDefinition
    MGDManged stand
    NATNatural stand
    XADForest Service administration site
    XAGAgricultural (excluding orchard and pastures)
    XBRBrush
    XBTBuildings in forested areas
    XCTCampgrounds in forested settings
    XMENatural occuring meadows, grasslands
    XPAPastures (irrigated and non-irrigated)
    XREResidential, other than forested settings
    XRNNatural occuring rock, cliffs, talus
    XRPRock pit, quarry
    XRTResidential areas in forested settings
    XSASand
    XTLTransmission lines
    XWALakes, Bodies of water covering more then 10 acres
    XWLWetlands
    XWPPonds, Bodies of water covering 10 acres or less
    XWSStreams, Rivers

    YR_ORIG
    Year of Origin (planted)

    4 digit integer representing a year

    TOT_CLOS
    The total percent crown closure of all layers. should equal the sum of crown closure for layers 1 - 3.

    Range of values
    Minimum:0
    Maximum:100

    L1_CLOS
    Percent crown closure for the layer

    Range of values
    Minimum:0
    Maximum:100

    L1_SZCL
    The size class of the layer

    ValueDefinition
    1Seedlings <1.0" dbh and <4.5' tall
    2Seedlings/saplings mixed
    3Saplings 1.0-4.9" dbh 4.5-20' tall
    4Saplings/poles mixed
    5Poles 5.0-8.9" dbh and >20'
    6Poles/small mixed
    7Small trees 9.0-20.1" dbh
    8Small/medium mixed
    9Medium trees 21.0-31.9" dbh
    10Medium/large mixed
    11Large trees 32.0-47.9" dbh
    12Large/giant mixed
    13Giant trees 48.0" or greater dbh

    L1_SPP1
    The most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L1_SPP2
    The second most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L1_SPP3
    The third most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L1_CLUMP
    Clumpiness describes the overall geometry of the layer. A layer is clumpy if the stocking is medium to high within clumps and low to absent over 50% of the area occupied by the layer. A ragged canopy layer is a good candidate for a clumpy classification.

    ValueDefinition
    NNo, not clumpy
    YYes, clumpy

    L1_SNAG
    Code indicating the percentage of snags in the layer.

    ValueDefinition
    0Less than 10% snags compared to the total trees in the layer
    110% to 50% (usually caused by fire or pest)
    2More than 50% (fire or pest)

    L2_CLOS
    Percent crown closure for the layer

    Range of values
    Minimum:0
    Maximum:100

    L2_SZCL
    The size class of the layer

    ValueDefinition
    1Seedlings <1.0" dbh and <4.5' tall
    2Seedlings/saplings mixed
    3Saplings 1.0-4.9" dbh 4.5-20' tall
    4Saplings/poles mixed
    5Poles 5.0-8.9" dbh and >20'
    6Poles/small mixed
    7Small trees 9.0-20.1" dbh
    8Small/medium mixed
    9Medium trees 21.0-31.9" dbh
    10Medium/large mixed
    11Large trees 32.0-47.9" dbh
    12Large/giant mixed
    13Giant trees 48.0" or greater dbh

    L2_SPP1
    The most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L2_SPP2
    The second most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L2_SPP3
    The third most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L2_CLUMP
    Clumpiness describes the overall geometry of the layer. A layer is clumpy if the stocking is medium to high within clumps and low to absent over 50% of the area occupied by the layer. A ragged canopy layer is a good candidate for a clumpy classification.

    ValueDefinition
    NNo, not clumpy
    YYes, clumpy

    L2_SNAG
    Code indicating the percentage of snags in the layer.

    ValueDefinition
    0Less than 10% snags compared to the total trees in layer
    110% to 50% (usually caused by fire or pest)
    2More than 50% (fire or pest)

    L3_CLOS
    Percent crown closure for the layer

    Range of values
    Minimum:0
    Maximum:100

    L3_SZCL
    The size class of the layer

    ValueDefinition
    1Seedlings <1.0" dbh and <4.5' tall
    2Seedlings/saplings mixed
    3Saplings 1.0-4.9" dbh 4.5-20' tall
    4Saplings/poles mixed
    5Poles 5.0-8.9" dbh and >20'
    6Poles/small mixed
    7Small trees 9.0-20.1" dbh
    8Small/medium mixed
    9Medium trees 21.0-31.9" dbh
    10Medium/large mixed
    11Large trees 32.0-47.9" dbh
    12Large/giant mixed
    13Giant trees 48.0" or greater dbh

    L3_SPP1
    The most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L3_SPP2
    The second most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L3_SPP3
    The third most common species in the layer.

    ValueDefinition
    ABPRnoble fir
    ACMAbigleaf maple
    ALRUred alder
    PICOshore pine
    PISISitka spruce
    PSMEDouglas-fir
    THPLWestern red-cedar
    TSHEWestern hemlock
    TREEunknown tree species
    TREEDUnknown deciduous tree species
    TREECUnknown conifer tree species

    L3_CLUMP
    Clumpiness describes the overall geometry of the layer. A layer is clumpy if the stocking is medium to high within clumps and low to absent over 50% of the area occupied by the layer. A ragged canopy layer is a good candidate for a clumpy classification.

    ValueDefinition
    NNo, not clumpy
    YYes, clumpy

    L4_CLOS
    Percent crown closure for the layer

    Range of values
    Minimum:0
    Maximum:100

    L5_CLOS
    Percent crown closure for the layer

    Range of values
    Minimum:0
    Maximum:100

    REMNANTS
    The presence or absence of large remnant trees.

    ValueDefinition
    NNo, remnants not present
    YYes, remnants present

    REM_DIST
    How the remnants are distributed.

    ValueDefinition
    CRemnants are clustered
    ERemnants are evenly distributed


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?

    USDA Forest Service, Siuslaw National Forest
    c/o Stu Johnston
    Silviculturist
    PO Box 1148
    Corvallis, OR 97339
    USA

    541-750-7000 (voice)
    541-750-7234 (FAX)

    Hours_of_Service: 8:00 am - 5:00 pm


Why was the data set created?

To provide better information on non-commercial and riparian stand conditions, for use in Watershed Analysis.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Type_of_Source_Media: stable-base material
    Source_Scale_Denominator: 12000

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

    Date: 1902 (process 1 of 2)
    Original coverage was created by appending individual watersheds in 2000. More data was appended in 2003.

    Person who carried out this activity:

    Diane Rainsford
    USDA Forest Service, Siuslaw National Forest
    GIS Coordinator
    4077 Research Way
    Corvallis, OR 97333
    USA

    541-750-7060 (voice)
    541-750-7234 (FAX)

    Hours_of_Service: 8:00 am - 8:00 pm
    (process 2 of 2)
    Dataset copied.

    Data sources used in this process:

    • i:\fsfiles\ref\library\gis\siu\piveg

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

    , Unknown.


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?

    The coverage is planned to be completed for the whole forest in 2004.

  5. How consistent are the relationships among the observations, including topology?

    All photo typing was done by the same 2 people over several years. They used the same standards and methods to type all the watersheds.


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)

    USDA Forest Service, Siuslaw National Forest
    GIS Coordinator
    PO Box 1148
    Corvallis, OR 97339
    USA

    541-750-7000 (voice)
    541-750-7234 (FAX)

    Hours_of_Service: 8:00 am - 5:00 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: 04-Nov-2009
Last Reviewed: March 2002
To be reviewed: Unknown
Metadata author:
USDA Forest Service, Siuslaw National Forest
GIS Coordinator
PO Box 1148
Corvallis, OR 97339
USA

541-750-7000 (voice)
541-750-7234 (FAX)

Hours_of_Service: 8:00 am - 5:00 pm
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.6 on Wed Nov 04 23:45:10 2009