Water velocity profiling at the U.S. Army Corps of Engineers Electric Dispersal Barrier in the Chicago Sanitary and Ship Canal during passage of fully-loaded commercial tows in August 2017

In 2017, the U.S. Fish and Wildlife Service, U.S. Geological Survey, and U.S. Army Corps of Engineers undertook a large-scale interagency field study to determine the influence of commercial barge vessels on the efficacy of the Electric Dispersal Barrier System (EDBS) in the Chicago Sanitary and Ship Canal (CSSC) in preventing fish passage. This study included a series of trials in which a tow, consisting of a tug vessel and fully-loaded barges, transited the EDBS in both upstream-bound (n = 65) and downstream-bound (n = 66) directions. The U.S. Geological Survey measured velocity profiles during these trials using a SonTek Argonaut SW 3000 kHz acoustic Doppler velocity meter (SW) and a wall-mounted 600 kHz Teledyne RD Instruments Channel Master horizontal acoustic Doppler current profiler (CM) mounted on the west canal wall. The wall mounted instruments were located at the following WGS84 coordinates: (41.6423629, -88.060329). Velocity measurements for each run are included in this data release as comma separated value files. The configuration of the barges for each run and the time at which the bow and stern of the tow passes the velocity probes is provided in 2017_Run_Information.csv. The wall-mounted instrument setup used during this study was the same wall-mounted instrument setup used by LeRoy et al. (2016) in August 2016. For a diagram and photograph of the instrument setup used by LeRoy et al. (2016) (the same setup used herein), the reader is referred to Figures 1 and 2 of Davis et al. (2017). LeRoy, J.Z., Jackson, P.R., and Engel, F.L. (2017), Velocity profiling at the US Army Corps of Engineers Electric Dispersal Barrier in the Chicago Sanitary and Ship Canal during passage of fully loaded commercial tows: U.S. Geological Survey data release, https://doi.org/10.5066/F7K35RTP. Davis, J.J., LeRoy, J.Z., Shanks, M.R., Jackson, P.R., Engel, F.L., Murphy, E.A., Baxter, C.L, Trovillion, J.C., McInerney, M.K., Barkowski, N.A. (2017), Effects of tow transit on the efficacy of the Chicago Sanitary and Ship Canal Electric Dispersal Barrier System. J. Great Lakes Res., 43, 1119-1131. http://dx.doi.org/10.1016/j.jglr.2017.08.013