Land Use Change, 1949 to 1997, Lower Payette River Basin, Idaho

Land Use Change, 1949 to 1997, Lower Payette River Basin, Idaho

Frequently-asked questions:

What does this data set describe?

Title:
Land Use Change, 1949 to 1997, Lower Payette River Basin, Idaho

Abstract: 
The change in irrigated agriculture land in irrigation districts was calculated by merging
the Payette Valley 1997 land use coverage with the 1938/1949 Payette Valley irrigated
agriculture coverage.

Supplemental information: 
Procedures_Used:
Used ARC/INFO command UNION to merge the 1997 Payette Valley land use/land cover
coverage with the Payette Valley 1938/1949 irrigated agriculture coverage.  Used DISSOLVE to combine polygons with the same irrigated land code to get the change in irrigated land in the Payette Valley coverage. INTERSECTED the irrrigation district.
coverage with the change in irrigated land in the Payette Valley coverage to get the
change in irrigated land in the Payette Valley in irrigation districts coverage.

  1. How should this data set be cited?

    Idaho Department of Water Resources, Unknowwn, Land Use Change, 1949 to 1997, Lower Payette River Basin, Idaho: Idaho Department of Water Resources, Boise, Idaho.

    Online links:
  2. What geographic area does the data set cover?

    Bounding coordinates:
    West: -117.125424
    East: -116.386172
    North: 44.512423
    South: 43.790632

  3. What does it look like?

    Thumbnail image:

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

    Beginning date: 1949
    Ending date: 1997
    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):
      • G-polygon (17528)
      • String (39169)
      • GT-polygon composed of chains (17529)

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

      The map projection used is Transverse Mercator.

      Projection parameters:
      Transverse Mercator
      Scale factor at central meridian: 0.999600
      Longitude of central meridian: -114.000000
      Latitude of projection origin: 42.000000
      False easting: 2500000.000000
      False northing: 1200000.000000

      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?

    pvlu4997
    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA
    PERIMETER
    IRR3897
    ACRES
    Entity and attribute overview: 
    The classes are described below:

Change in Irrigated Agriculture Classes
Definitions and Descriptions

0. Unclassified Land

1. Irrigated 1997, Irrigated 1938/1949

2. Irrigated 1997, Not Irrigated 1938/1949

3. Not Irrigated 1997, Irrigated 1938/1949

4. Not Irrigated 1997, Not Irrigated 1938/1949

    Entity and attribute detail citation: 
    None
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Who produced the data set?

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

    • Idaho Department of Water Resources

  2. Who also contributed to the data set?

    The GIS staff of the Idaho Department of Water Resources in cooperation with the US Burea of Reclamation, Boise, Idaho.

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

    Geospatial Technology
    Idaho Department of Water Resources
    GIS Analyst
    322 East Front Street
    Boise, Idaho 83720
    USA

    (208) 287-4800 (voice)
    (208) 287-6700 (FAX)
    gisinfo@idwr.idaho.gov
    Hours of Service: 8:00 to 5:00
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Why was the data set created?

Calculate the change in irrigated acres in irrigation districts in the Payette Valley
from 1938/1949 to 1997.

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How was the data set created?

  1. Where did the data come from?

    None (source 1 of 1)
    Source scale denominator: 24000

  2. What changes have been made?

    Date: 1999 (change 1 of 4)
    Date: 19991129 (change 2 of 4) 
    First draft of metadata created by dkerr using
FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set
/d7/bvmosaic/lumosaic/pvlu4997


    Dataset copied.

    Metadata imported.

    Data sources used in this process:
    • C:\DOCUME~1\bill.kamber\LOCALS~1\Temp\xml27.tmp

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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?

    Covers the Payette Valley Project study area.

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

    ESRI feature type: Simple, Geometry: Polygon, Topology:

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How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access constraints: Public
Use constraints: 
The spatial information is provided "as is". IDWR cannot accept any responsibility for errors, omissions, or positional accuracy in the digital data or underlying records. There are no warranties, expressed or implied, including fitness for a particular purpose, accompanying any of these products. However, notification of any errors would be appreciated.

Distributor 1 of 1

  1. Who distributes the data set?

    Geospatial Technology
    Idaho Department of Water Resources
    GIS Analyst
    322 East Front Street
    Boise, Idaho 83720
    USA

    (208) 287-4800 (voice)
    (208) 287-6700 (FAX)
    gisinfo@idwr.idaho.gov
    Hours of Service: 8:00 to 5:00

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    The Idaho Department of Water Resources is  making this data available as a public service. The Idaho Department of Water Resources strives to ensure that all technical data and other information made available to the public is accurate, complete and in conformance with the Idaho Public Records Act. Neither the Department of Water Resources nor the State of Idaho, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained.

  4. How can I download or order the data?

    • Availability in digital form:


      • Data format:
      in format ESRI data format, dependent upon request Size: 6.030
      Network links: http://www.idwr.idaho.gov/gisdata

    • Cost to order the data: To be determined at time of order


  5. Is there some other way to get the data?

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

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Who wrote the metadata?

Dates:
Last modified: 20070109

Metadata author:
Geospatial Technology
Idaho Department of Water Resources
GIS Analyst
322 East Front Street
Boise, Idaho 83720
USA

(208) 287-4800 (voice)
(208) 287-6700 (FAX)
gisinfo@idwr.idaho.gov
Hours of Service: 8:00 to 5:00

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

Metadata extensions used:
  • http://www.idwr.idaho.gov/gisdata/gis_data.htm
  • http://www.esri.com/metadata/esriprof80.html

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