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TABLE 1 <br />EVALUATION OF MODELS INCLUDED IN THE SHORT LIST (Continued) <br />CROPWAT and <br />CriteriaXCONS2 BASIN CRPSMSMB <br />21. The quality of fair fair good good <br />the programming <br />code. <br />22. Model's daily daily <br />minimum input time <br />period <br />23. Model's output monthly monthly monthly or seasonal daily and monthly <br />time period at crop phenology <br />dates and irrigation <br />dates. <br />24. How does the fair good fair good <br />model handle <br />variable soil <br />moisture? <br />25. Additional Items? Add 10 percent to the The accuracy may be <br />ET for each 100 questionable since it <br />meter elevation gain is a temperature and <br />radiation program <br />26. General function It is a CIR model and The primary design Calculates seasonal Daily soil moisture <br />of the model (the has 20 crop curves in of this method is for CIR and does not budget to calculate <br />specific task for it. farm and project have the capability to monthly values for <br />which the model is delivery requirements calculate monthly depletion type <br />designed) and ground water CIR values. studies. <br />table recharge. <br />3.0 CONCLUSIONS AND RECOMMENDATIONS <br />The models on the short list were carefully evaluated, and some of the models were excluded based on <br />the criteria outlined in Task Memorandum 1.14-3. It is recommended that the XCONS2 model be used <br />to approximately replicate the USBR Colorado River System Consumptive Uses and Losses Report, <br />1981-1985 . The model was found to accurately estimate crop ET using the procedures described in SCS <br />TR-21. <br />5 <br />A275 01.09.95 1.14-5 CSU IDS <br />