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<br />OO!H<'~. .. <br /> <br />.. <br /> <br />1. Ice Effects on Hydraulic <br />George Ashton, U.S. Army <br />Laboratory, Hanover, New <br /> <br />and Fish and Wildlife Habitat by <br />Cold Regions Research and Engineering <br />Hampshire, March 1989. <br /> <br />2. A Mathematical Simulation of the Temperature and Dissolved <br />Oxygen Regime ot Lake McConaughy, Nebraska, by James Yahnke, <br />Bureau of Reclamation, Denver Office, February 1990. <br /> <br />3. Platte River Ecology Study, U.S. Fish and Wildlife Service, <br />Northern Prairie Research Center, Jamestown, North Dakota, <br />June 1981. <br /> <br />4. Piping Plover Recovery Plan; u.s. Fish and Wildlife Service, <br />Twin Cities, Minnesota, May 1~, 1988. <br /> <br />5. Changing Habitats in the Platte River Valley of Nebraska by <br />John G. Sidle, Eugene D. Miller, and Paul J. Currier. Prairie <br />Naturalist, 21(2):91-104. 1989. <br /> <br />6. Habitat conservation for nesting least terns and piping <br />plovers on the Platte River in Nebraska by Jerry W. Ziewitz, <br />John G. Sidle, and John J. Dinan, undated manuscript available <br />from U.S. Fish and Wildlife Service, Grand Island, Nebraska. <br /> <br />Reports of the Platte River Management Joint Study which have been <br />completed include: <br /> <br />1. Evaluating Management Alternatives: Sediment, Flow, and Channel <br />Geometry Considerations by the Hydrology Work Group, December <br />1989. <br /> <br />2. Final 8iology Work Group report, July 20, 1990. <br /> <br />d. Anticipated Problems and Possible Opoortunities <br /> <br />In order to perform an acceptable investigation, supportable scientific <br />principles and methods need to be used in the analysis. It will be <br />necessary to reach consensus on methods, principles, and assumptions <br />made to perform the analysis. State and Federal agencies have a need <br />for a basin-wide hydrologic model that has agreement as to input, <br />operating rules, and operations output. The opportunity exists with <br />this evaluation to develop hydrological and biological models that are <br />understood and supported by the many interested parties in the Platte <br />River Basin. <br /> <br />The question regarding the need to attempt to model a hydrologic and <br />habitat condition that existed prior to development (Pathfinder <br />completed 1909) still remains. Presently the study is scoped to review <br />the hydrologic and habitat conditions under an existing development and <br /> <br />4 <br />