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<br />When this warmed flow enters Lake Mead it <br />will still be colder than the water above the <br />lhermocline and will be stored at a depth well <br />below the surface. It is beyond the scope of this <br />study to model the long term impact of this heat on <br />Lake Mead. It would appear that a multiple year <br />destratification operation on Lake Powell would <br />eventually cause a slight increase in the surface <br />temperature of Lake Mead (l oC or less). Part of the <br /> <br />additional heat would be dissipated by increasing <br />evaporation at Lake Mead and part would be <br />removed via the river. Additional research is <br />needed to delermine the fraclion of the Lake Powell <br />(or Flaming Gorge) suppression that would be lost <br />downstream. but it appears to represent a minor <br />fraction of the volume claimed for the upstream <br />reservoir. <br /> <br />48 <br />