Estimate soil temperature regime (STR) based on mean annual soil temperature (MAST), mean summer temperature (MSST), mean winter soil temperature (MWST), presence of O horizons, saturated conditions, and presence of permafrost. Several assumptions are made when O horizon or saturation are undefined.
estimateSTR( mast, mean.summer, mean.winter, O.hz = NA, saturated = NA, permafrost = FALSE )
vector of mean annual soil temperature (deg C)
vector of mean summer soil temperature (deg C)
vector of mean winter soil temperature (deg C)
logical vector of O horizon presence / absence
logical vector of seasonal saturation
logical vector of permafrost presence / absence
Vector of soil temperature regimes.
Soil Survey Staff. 2015. Illustrated guide to soil taxonomy. U.S. Department of Agriculture, Natural Resources Conservation Service, National Soil Survey Center, Lincoln, Nebraska.
# simple example estimateSTR(mast=17, mean.summer = 22, mean.winter = 12) #>  thermic #> 10 Levels: gelic cryic frigid isofrigid mesic isomesic thermic ... isohyperthermic