00000nam 2200000zi 4500 9.917944 CaOODSP 20221214102428 m o d f cr mn||||||||| 221202s2015 onca ob f000 0 eng d CaOODSP eng rda CaOODSP En56-303/2015E-PDF Standard operating procedures for mid-section open water discharge measurements using ADCPs / P Campbell. Open water mid-section measurements using ADCPs Version 1.0. Ottawa : Water Survey of Canada, Environment Canada, 2015. 1 online resource (32 pages) : illustrations (chiefly colour) text txt rdacontent computer c rdamedia online resource cr rdacarrier Cover title. Includes bibliographical references. "Acoustic Doppler current profilers (ADCPs) are typically used for measuring river discharge from a floating platform or boat that is continuously moving across the river from one bank to the other. A hydrographer can also use ADCP’s to measure river discharge using the mid-section method in which the ADCP is held in place for a specified duration at multiple discrete locations, or verticals, across the stream. Water velocity data is captured throughout the depth of flow and averaged to obtain a mean velocity estimate integrated over the full depth at each vertical. The depth for each vertical is determined with the ADCP, and representative areas and discharges for each vertical are calculated and summed to obtain a total discharge. This document presents guidance and standard operating procedures specific to deploying ADCPs for open water mid-section measurements"--Introduction, page 2. Stream measurements. Stream measurements Instruments. Underwater acoustics Instruments. Cours d'eau Jaugeage. Cours d'eau Jaugeage Instruments. Acoustique sous-marine Instruments. Campbell, P. I. Water Survey of Canada, issuing body. PDF 2.31 MB https://publications.gc.ca/collections/collection_2022/eccc/En56-303-2015-eng.pdf