01730oam 2200445 450 991071674840332120210927091511.0(CKB)5470000002524692(OCoLC)1264226256(EXLCZ)99547000000252469220210818d2021 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierInstruments, methods, rationale, and derived data used to quantify and compare the trapping efficiencies of four types of pressure-difference bedload samplers /by John R. Gray [and four others]Reston, Virginia :U.S. Department of the Interior, U.S. Geological Survey,2021.1 online resource (vii, 61 pages) illustrations (some color)Open-file report ;2021-1064Includes bibliographical references (pages 36-41).Bed loadSamplingSuspended sedimentsMeasurementHydrological instrumentsEvaluationSuspended sedimentsMeasurementfastBed loadSampling.Suspended sedimentsMeasurement.Hydrological instrumentsEvaluation.Suspended sedimentsMeasurement.Gray John R.1951-1383504Geological Survey (U.S.),GPOGPOOCLCOOCLCFGPOBOOK9910716748403321Instruments, methods, rationale, and derived data used to quantify and compare the trapping efficiencies of four types of pressure-difference bedload samplers3501563UNINA