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WSPC04476
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Last modified
7/29/2009 10:11:10 AM
Creation date
10/9/2006 4:38:10 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8283.200
Description
Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System-RAY
State
CO
Water Division
5
Date
12/29/1993
Title
Hydrosphere-Colorado River Model-Technical Overview
Water Supply Pro - Doc Type
Report/Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />002095 <br />Hydrosphere's Colorado River Model <br /> <br />December 29, 1993 <br />Page 2 <br /> <br />. Flexibility to incorporate changes which may be required for a <br />particular study to simulate new operations or allocation priorities. <br /> <br />. Ability to use different streamflow traces. "Standard" traces available <br />with Hydrosphere's Colorado River Model are: (a) recorded historical <br />streamflow traces from 1906 to 1983; (b) two, 1,400 year, synthetic <br />traces with mean flows of 13.8 and 15,0 million acre-feet; (c) <br />streamflow traces reconstructed from measurements of pre-historic tree <br />rings from 1520 to 1961; d) multiple indexed-sequential traces, <br />wrapping 1- or 5- year segments from the beginning of the historical <br />trace to the end; and e) two, 14OO-year climate change traces <br />representing warming of 1 and 2 degrees Celsius. <br /> <br />. Ability to use different depletion estimates in its simulations. <br />"Standard" depletion estimates available with Hydrosphere's Colorado <br />River Model include observed historical depletions as well as projected <br />depletions developed by the USBR for its 1991 Annual Operating Plan <br />(AOP). <br /> <br />Previous Applications <br /> <br />Hydrosphere's Colorado River Model has been used to determine the availability of <br />water to various water users, power and energy production and water quality based on diverse <br />assumptions regarding hydrology and climate, water demands, operating criteria, facilities <br />configuration and alternative institutional arrangements. Two papers describing the model and <br />its application have been published in refereed journals -- Water Resources Bulletin and Water <br />Resources Research (Brown et ai" 1988 and 1990). <br /> <br />A partial list of projects to which the model has been applied is presented below. <br /> <br />. Analysis of the fate of and benefits from increased streamflow from <br />changed forest management practices on a research forest and three <br />national forests in the Upper Basin. <br /> <br />. Water availability for the Central Arizona Project. <br /> <br />. Impacts of settlements involving quantification of federal reserved <br />rights . <br /> <br />. Impact of changes. in operations at Glen Canyon Dam on water <br />availability, power and energy production and environmental values in <br />the Grand Canyon. <br /> <br />. Water availability, power and energy production, endangered species <br />viability and water quality under a severe and sustained drought, and <br />the effectiveness of coping mechanisms in mitigating impacts to these <br />values. <br /> <br />. Technical support for a party to the seven-state negotiations regarding <br />increased supplies for the Metropolitan Water District. <br /> <br />. Water availability, power and energy production and water quality <br />under warmer climatic conditions. <br /> <br />Hydrosphere Resource Consultants 1002 Walnut Suite 200 Boulder, Colorado 80302 <br />
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