. Development of a portable sand trap for use in the nearshore. Littoral drift; Oceanographic instruments; Sedimentation and deposition. Sand Flux (g/cm2/min). 55 60 65 70 Mid-Flow Speed (cm/s) 75 Figure 37. Area beneath each nozzle rate prediction used to calculate sand-trapping efficiency 104. The areas below the upper and lower 95 percent confidence limits were calculated, and the sand-trapping efficiency Es and corresponding maximum error e were computed as follows: Es ± € - Atr -I 1 ± (AuTR " A1Tr) + (^uCU " AlCu) 2 Acu 2 AT (22) where Axr = area below SUPERDUCK or DUCK85 equati
. Development of a portable sand trap for use in the nearshore. Littoral drift; Oceanographic instruments; Sedimentation and deposition. Sand Flux (g/cm2/min). 55 60 65 70 Mid-Flow Speed (cm/s) 75 Figure 37. Area beneath each nozzle rate prediction used to calculate sand-trapping efficiency 104. The areas below the upper and lower 95 percent confidence limits were calculated, and the sand-trapping efficiency Es and corresponding maximum error e were computed as follows: Es ± € - Atr -I 1 ± (AuTR " A1Tr) + (^uCU " AlCu) 2 Acu 2 AT (22) where Axr = area below SUPERDUCK or DUCK85 equation Acu = area below Cube equation AyTjj = area below upper confidence limit equation (either SUPER- DUCK or DUCK85 equation) A1TR = area below lower confidence limit equation (either SUPERDUCK or DUCK85 equation) 76. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Rosati, Julie Dean; Kraus, Nicholas C; U. S. Army Engineer Waterways Experiment Station; Coastal Engineering Research Center (U. S. ); United States. Army. Corps of Engineers. [Vicksburg, Miss. : U. S. Army Engineer Waterways Experiment Station ; Springfield, Va. : available from National Technical Information Service]
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