02319nam 2200469I 450 991070382800332120150803112901.0(CKB)5470000002435454(OCoLC)915346713(EXLCZ)99547000000243545420150803j201409 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierAerial missions with small unmanned aircraft systems to monitor sediment flow and changing topography resulting from the removal of dams on the Elwha River, Elwha Dam, Olympic National Park (Washington) /Douglas Clark [and four others]Denver, Colo. :U.S. Department of the Interior, Bureau of Reclamation :U.S. Geological Survey,[2013]1 online resoure (iv unnumbered pages, 33 pages) color illustrations, color mapsTechnical memorandum ;no. 86-68260-13-03Title from title screen (viewed on July 16, 2015)."September 2013"--Cover."Elwha River restoration, Washington, Pacific Northwest Region"--Cover.Includes bibliographical references (page 26).Aerial missions with small unmanned aircraft systems to monitor sediment flow and changing topography resulting from the removal of dams on the Elwha River, Elwha Dam, Olympic National Park Aerial photography in hydraulic engineeringDam retirementEnvironmental aspectsWashington (State)Elwha RiverEnvironmental monitoringRemote sensingElwha Dam (Wash.)Elwha River (Wash.)Aerial photography in hydraulic engineering.Dam retirementEnvironmental aspectsEnvironmental monitoringRemote sensing.Clark Douglas381390United States.Bureau of Reclamation,Geological Survey (U.S.),GPOGPOBOOK9910703828003321Aerial missions with small unmanned aircraft systems to monitor sediment flow and changing topography resulting from the removal of dams on the Elwha River, Elwha Dam, Olympic National Park (Washington)3544324UNINA