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Water Division <br />A major watershed division of the state. Colorado water divisions administer the following basins being <br />studied within the CDSS (shown with the USGS hydrologic units) <br />Basin Division HU <br />Colorado Main Stem 5 1401* <br />Dolores 7 1403* <br />Gunnison 4 1402* <br />San Juan 7 1408* <br />White 6 1405[5-7] <br />Yampa 6 1405[1-3] <br />Water Holding Capacity (AWC) <br />The ratio of water which the soil, after being saturated, will yield by gravity to the total volume of the <br />soil. <br />Water Judge <br />In Colorado, a judge in the water court. (Rice (1991)) <br />Water Right <br />Aright to use, in accordance with its priority, a certain portion of the waters of the state by reason of <br />the appropriation of the same. See also absolute water right and conditional water right. (Rice (1991)) <br />Watershed <br />The area from which water drains to a single point. (Rice (1991)) <br />Water Year <br />A one year period starting October 1 of the previous calendar year and ending September 30. <br />Consequently, water year 1990 starts in calendar year 1989. See also irrigation year. <br />WRA -Water Rights Administration Model <br />The model that supports water allocation decisions of State water administrators by evaluations of <br />daily hydrologic and demand information in the setting of the prior appropriation doctrine. <br />WRP -Water Rights Planning Model <br />The model that simulates, on a monthly time step, a current operational scenario on a historic <br />hydrologic trace to provide information to water planners, engineers, etc. <br />WWW -World Wide Web <br />The name given to the world-wide information network that uses the Internet and tools like Mosaic to <br />distribute information. <br />WYSIWYG <br />"What You See Is What You Get", meaning the graphics on the screen can be printed to give the same <br />visual representation. <br />Yield <br />The quantity of water expressed either as a continuous rate of flow or as a volume per unit of time <br />(acre-feet per year), which can be collected for a given use or uses from surface or groundwater <br />sources on a watershed. The yield may vary with the proposed use, the plan of development, and also <br />economic considerations. Yield is fairly synonymous with water crop. <br />Total runoff. <br />The streamflow in a given interval of time derived from a unit area of watershed. It is determined by <br />dividing the observed streamflow at a given location by the drainage area above that location and is <br />