What are the inputs to PRMS and where do they come from?
Daily-mode model inputs are daily precipitation, maximum and minimum air temperature, and solar radiation. The energy inputs of air temperature and solar radiation are used in the computation of evaporation, transpiration, sublimation, and snowmelt. These point data are extrapolated to each HRU using a set of adjustment coefficients developed from regional climate data. The coefficients typically include the effects of HRU elevation, slope, aspect, and distance to one or more measurement sites. Measured maximum and minimum daily air temperature data are adjusted using monthly or daily lapse rates and the elevation difference between a climate station and each HRU.
