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<br /> <br />, <br /> <br />/ <br /> <br />J <br /> <br />P.13 <br /> <br />I, <br /> <br />Task 1.14 . Conswnptlve Use Model <br /> <br />Introduction <br /> <br />1. Obiecti v.es <br /> <br />(' <br /> <br />. <br /> <br />Develop and implement a ~o sumptive use model for the Colorado River by <br />using the GunnisOll River b. a prolOlype. This consumptive use model will <br />compute the amount of water ~ or depletion due to humao activities. See Task <br />Memoranda 1.14-1 through 1.14;-5 for a discussion of the evaluation of <br />cODSumpti ve use models in Phll8e I. <br /> <br />,f <br /> <br />. <br /> <br />Implement S8fRIl gf at: l=@SaUIlLl~ldhL:e,..[J fer if,npIiM' changes to the USBR <br />method. . I for application in the Slate of Colorado (see Appendh q. <br /> <br />';t <br /> <br />/ <br /> <br />. Maintain the 5a.nJtl categories of water consumption as the, USBR's "Colorado <br />River System Consumptive Uses and Losses Report.' which is produced evel)' <br />five years, 1he CROSS consumptive use model will be able to verify one year <br />of lbe 1985 USBR report for the Gunnison River basin. The USBR methods will <br />be iocluded to allow a reasonable replication of the USBR values, although <br />alternative CROSS methods for estimating consumptive use might differ from <br />the USBR methods (see Appendix C). <br /> <br />. Develop and link the consumptive model to the CROSS INFORMIX and <br />GRASS databases throu&h a DMl. <br /> <br />. Implement the system with a graphical user interface. The user will have the <br />ability to evaluate baseline scenario (USBR values) as well as create alternative <br />scenarios by modifying the baseline. tr <br />f) 6yp,~J ~ G"~""..; ,(nEW 6",;, jJ/.-O-I-f;J'< (-... OJVJJ/_:' 7, <br />2. AssuIDntions <br /> <br />. None of the crop consumptive use models evaluated in Phase I contained a GIS <br />componcnt. 1be CRDSS consumptive use mOdel will incorporate GIS <br />technology for processing spatial data for consumptive use estimations. <br /> <br />. The organization of lbe consumptive use model will be a central program with a <br />number of modules for computing differenl consumpli ve use categories, <br /> <br />. Portions of the source code for lbe program developed as part of the project <br />"Reference Crop Evapotranspiration Maps for Coloradot which was jointly <br />sponsored by the Colorado Water Resources Research Institute and the Slate <br />Engineel's Office. will be used in the development of the OUI and the <br />manipulation of spatial data for this task. <br /> <br />AZ1S 01.10.9<1 1-44 <br /> <br />, <br />'I? <br />;j <br />