Metadata for Montana Average Annual Precipitation, 1961-1990

- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Download full XML Metadata

Identification Information:

Citation:
  Originator: Oregon Climate Service
  Publication date: 04/1998
  Title: Montana Average Annual Precipitation, 1961-1990
  Publication place: Helena, MT
  Publisher: Montana State Library
  Other citation details:
    Former names of the data set on the NRIS web site were "precip" and "precip61_90"
  Online linkage: ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Precipitation1990.zip
  Browse graphic file name: ftp://ftp.geoinfo.msl.mt.gov/Documents/Maps/Thumbnails/20030401_605_thumb.jpg
  Browse graphic file description: Thumbnail image of Montana 1961-1990 Average Annual Precipitation map
  Browse graphic file name: ftp://ftp.geoinfo.msl.mt.gov/Documents/Maps/Individual/20030401_605_1990_AvgPrecip61to90.gif
  Browse graphic file description: Montana 1961-1990 Average Annual Precipitation map
Abstract:
  This data contains vector isoline and polygon layers of average annual precipitation for the climatological period 1961-90. Parameter-elevation Regressions on Independent Slopes Model (PRISM) derived raster data is the underlying data set from which the polygons and vectors were created. PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of annual, monthly and event-based climatic parameters. Detailed descriptions of the PRISM raster data can be found with the accompanying raster data sets. For further information, the online PRISM homepage can be found at URL:http://www.ocs.orst.edu/prism/prism_new.html.
Time period of content:
  Beginning date: 1961
  Ending date: 12/31/1990
  Currentness reference:
    Climatological period from which the point observations were taken.
Status:
  Progress: Complete
  Maintenance and update frequency:
    None planned for the 1961-90 climatological period. However, this data set will most likely be updated every decade for the previous 30-year climatological period.
Access constraints: n/a, no restrictions apply
Use constraints:
  Acknowledgement of the following agencies in products derived from these data: Natural Resources Conservation Service (NRCS) Water and Climate Center, NRCS National Cartography and Geospatial Center (NCGC), PRISM Model, and the Oregon Climate Service at Oregon State University.
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Point of contact:
  Oregon Climate Service at Oregon State University
  Strand Ag Hall 326, Oregon Climate Service, Oregon State University
  Corvallis, OR 97331-2209
  Telephone: 541-737-5705
  Fax: 541-737-5710
  E-Mail: oregon@oce.orst.edu
Data set credit:
  Chris Daly of Oregon State University and George Taylor of the Oregon Climate Service at Oregon State University

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Data Quality Information:

Logical consistency report:
  Polygon and chain-node topology present. Checks were made to ensure that no two adjacent polygons are labelled with the same precipitation value. A manual spot check was made of peaks, depressions, and islands.
Completeness report:
  Point estimates of precipitation originated from the following sources: National Weather Service Cooperative (COOP) stations, 2) Natural Resources Conservation Service (NRCS) SNOTEL, 3) local networks. All COOP station data were subjected to quality control checks by the National Climatic Data Center (NCDC).
Lineage:
  Source information:
    Originator: National Climatic Data Center (NCDC)
    Publication date: 1991
    Title:
      U.S. National 1961-1990 Climate Normals, Climatography of the United States No. 81
    Publication place: Asheville, NC, USA
    Publisher: National Climatic Data Center (NCDC)
  Source information:
    Originator: Natural Resources Conservation Service
    Publication date: 1991
    Title:
      Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys
    Series name:
      Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys
    Issue identification: Annual issue for Western US states
    Publication place: Portland, OR, USA
    Publisher:
      Natural Resources Conservation Service, Water and Climate Center
    Source contribution:
      Location and values of known average monthly and annual precipitation
    Beginning date: 1961
    Ending date: 1990
  Source information:
    Originator:
      Natural Resources Conservation Service, Water and Climate Center
    Publication date: Unpublished Material
    Title: Local Precipitation monitoring networks
    Beginning date: 1961
    Ending date: 1990
  Source information:
    Originator: Defense Mapping Agency
    Publication date: 1985
    Title:
      1:250,000-scale Digital Elevation Models (DEM) also known as 1-Degree DEM's
    Publication place: Washington, DC
    Publisher: U.S. Geological Survey
    Source contribution:
      Terrain surface input to PRISM model for estimation of precipitaion between known points.
    Calendar date: 1985
  Process step:
    Filter raster data from a resolution of 4 km to 2 km using a Gaussian filter
  Process date: 04/1998
  Process step: Contour 2 km raster data
  Process date: 04/1998
  Process step:
    Convert adjacent contour lines to areas or polygons using custom software
  Process date: 04/1998

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Spatial Data Organization Information:

Point and vector object information:
  SDTS object type: Complete chain
    SDTS object count: 5310
  SDTS object type: GT-polygon composed of chains
    SDTS object count: 3474

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Spatial Reference Information:

Horizontal coordinate system definition:
  Grid coordinate system name: State Plane Coordinate System
  SPCS zone identifier: 2500
  Lambert conformal conic:
  Standard parallel: 45.000000
  Standard parallel: 49.000000
  Longitude of central meridian: -109.500000
  Latitude of projection origin: 44.250000
  False easting: 600000.000000
  False northing: 0.000000
  Planar distance units: meters
  Geodetic model:
    Horizontal datum name: North American Datum of 1983
    Ellipsoid name: Geodetic Reference System 80
    Semi-major axis: 6378137.000000
    Denominator of flattening ratio: 298.257222

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Entity and Attribute Information:

Entity type label: Precip1990_Isoline.dbf
Entity type definition: line feature attribute table
  Attribute label: FID
    Attribute definition: Shapefile sequence number
  Attribute label: Shape
    Attribute definition: Feature geometry
  Attribute label: F_Num
    Attribute definition: Sequence number from original coverage version of the data
  Attribute label: F_ID
    Attribute definition: ID number from original coverage version of the data
  Attribute label: CONTOUR
    Attribute definition:
      Average annual precipitation, inches
      The value of this field is set to 0 for lines that represent the state boundary.
  Attribute label: CONTOUR_TXT
    Attribute definition:
      Average annual precipitation, inches
      Text version of the contour field, with 0 values left blank.
Entity type label: Precip1990_Poly.dbf
Entity type definition:
  Polygons representing an area with a fixed range of precipitation. The precipitation value is stored as the item RANGE in the attribute table.
  Attribute label: FID
    Attribute definition: Shapefile sequence number
  Attribute label: Shape
    Attribute definition: Feature geometry
  Attribute label: AREA
    Attribute definition: Area of feature in square meters
  Attribute label: PERIMETER
    Attribute definition: Perimeter of feature in meters
  Attribute label: PRECIP_
    Attribute definition: Sequence number from original coverage version of the data
  Attribute label: PRECIP-ID
    Attribute definition: ID number from original coverage version of the data
  Attribute label: RANGE
    Attribute definition:
      Precipitation value, in inches, representing the center of the precipitation range of the bounding isolines
  Attribute label: LEGEND
    Attribute definition: Bounding precipitation values in inches.

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Distribution Information:

Distributor:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5354
  TDD/TTY telephone: 406-444-4799
  Fax: 406-444-0266
  E-Mail: geoinfo@mt.gov
Resource description: Downloadable Data
Distribution liability:
  The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Standard order process:
  Digital form:
    Format name: ESRI Shape file
    Online option:
    ftp://ftp.geoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Shapefiles/Precipitation1990.zip

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Metadata Reference Information:

Metadata date: 01/24/2014
Metadata review date: 04/17/2013
Metadata review date: 09/29/2004
Metadata review date: 04/23/1998
Metadata contact:
  Tye Parzybok
  Oregon Climate Service
  Strand Ag Hall 326, Oregon Climate Service, Oregon State University
  Corvallis, OR 97331-2209
  Telephone: 541-737-5705
  Fax: 541-737-5710
  E-Mail: parzy@oce.orst.edu

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