5.9 - Detailed Penman-Monteith Output File (*.opm)

The detailed Penman-Monteith output file (*.opm) is generated when a Penman-Monteith or ASCE Standardized Penman-Monteith analyses is selected by setting flag1= 3 or 5, respectively, in the model control file (see Section 4.4). This option provides detailed results of the Penman-Monteith or ASCE Standardized Penman-Monteith consumptive use calculation during the growing season for all crop types associated with each structure by day, including the following:

  • reference evapotranspiration,
  • Penman-Monteith crop coefficients \(K_c\),
  • potential consumptive use,
  • effective rainfall, and
  • irrigation water requirement.

An example is provided in Appendix A.