GEOGRAPHIC INFORMATION

Montana Cryic-Frigid Soil Temperature Regimes

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Data Provider Natural Resources Conservation Service Montana State Office
Date 2009
Content Type Downloadable Data
Abstract The raster dataset displaying the soil temperature categories of Cryic and Frigid was developed from SSURGO soils attribute data, 10 meter DEMs and input from local USDA-NRCS soil scientists. The raster cell size is 10 meters and is provided in Montana State Plane meters coordinates. The cryic/frigid is coded with two values: Cryic = 1, Frigid = 2. A cryic soil temperature regime (thermal distribution) has a mean annual soil temperature of > 0 C but greater than 8 C, > 5 C difference between mean summer and mean winter soils temperatures, at 50 cm, and cold summer temperatures. Soils in this temperature regime have a mean annual temperature lower than 8 degrees C but do not have permafrost. In the American West, these areas have cryic soils: all areas above timberline, virtually all areas above the Douglas fir zone, and some areas within the Douglas fir zone. In addition, cold air (and water) drainage results in most mountain meadows within the Douglas fir zone (and even lower and into the Ponderosa pine zone) having cryic soils.] A frigid soil temperature regime (thermal distribution) has a mean annual soil temperature of > 0 C but greater than 8 C, less than 5 C difference between mean summer and mean winter soil temperatures at 50 cm below the surface, and warm summer temperatures.
Purpose For display of cryic and frigid soil temperature regimes across Montana.
Supplemental Information
This data should be used for planning purposes only. This data set is provided "as-is" without warranty of any kind. The NRCS makes no representations or warranties whatsoever with respect to the accuracy or completeness of this data set and assumes no responsibility for the suitability of this data set for a particular purpose; and NRCS will not be liable for any damages incurred as a result of errors in this data set. 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.
Data Access http://geoinfo.msl.mt.gov/nrcs_partnership/climate_and_water_supply/
Distributor Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY: Montana Relay 711
Fax: 406-444-0266
Email: geoinfo@mt.gov
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.
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Metadata date 10/22/2019