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<br />001983 <br /> <br />1. Creation of a simple ground water object and associated methods. <br />2. Ability to separate irrigation return flows into surface and ground water components. <br />3. Creation of an efficiency method for irrigation diversions that is a function of supply <br />(Variable Efficiency Method in RiverWare). Result is that no depletion shortage occurs <br />until maximum efficiency is reached. See Figure 6-1. <br />4. Creation of ground water component as a function of computed efficiency (see 3). <br />5. Ability to compute irrigation depletion request as a function of evapotranspiration rate, <br />irrigated area, incidental losses, and when appropriate, sprinkler evaporation. <br />6. Ability to compute diversion request as a function of depletion request, minimum <br />efficiency, maximum efficiency, capacity. <br /> <br />Methods 5 and 6 were not available until most of the depletion scenario analysis runs were <br />completed. However, this did not affect results because these methods replicated computations <br />performed by the pre-processor. <br /> <br />Version 2.1 of RiverWare has been released. This release incorporates the new rule language and is <br />not backwards compatible with previous releases. A 2.1 compatible version of the model should be <br />available during the summer of 1999. <br /> <br />RiverWare TerminoloQv <br /> <br />A brief description of the objects used in the SJRIP Hydrology Model and other RiverWare <br />terminology follow: <br /> <br />AggDiversionSite <br /> <br />The aggregate object allows many water users with separate diversions, return <br />flows, and consumptive uses to be combined on the RiverWare Workspace. <br /> <br />AggReach <br /> <br />The AggReach is an aggregate of Reach Objects. It performs no routing <br />calculations, it just totals various information from its elements. <br /> <br />Confluence <br /> <br />This object models the confluence of two streams or rivers into a single <br />outflow. <br /> <br />Data Object <br /> <br />Holds user-defined data and Expression Slots. <br /> <br />GroundWater <br /> <br />The groundwater storage objects models a simple fill and spill underground <br />body of water. <br /> <br />Reach <br /> <br />Routes water through a section of river using one of many possible routing <br />algorithms. <br /> <br />Storage Reservoir <br /> <br />Reservoir with release and spillways and no hydropower facilities. Storage is <br />a function of pool elevation as defined by an elevation-volume table. <br /> <br />Other definitions: <br /> <br />DRAFT - SJRIP Hydrology Model Documentation <br />June 18, 1999 <br /> <br />44 <br />