Dataset: Particle image velocimetry (PIV) data for 6 representative cases of quagga mussel filter feeding activity collected during a benthic deployment from the R/V Neeskay on Aug. 2- Aug. 9, 2017.

Version 1 (2018-03-06)Dataset Type:Other Field Results

Principal Investigator: Harvey Bootsma (University of Wisconsin)

Co-Principal Investigator: Qian Liao (University of Wisconsin)

BCO-DMO Data Manager: Megan Switzer (Woods Hole Oceanographic Institution)


Project: Collaborative Research: Regulation of plankton and nutrient dynamics by hydrodynamics and profundal filter feeders (Filter Feeders Physics and Phosphorus)

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Instantaneous flow velocity distribution on a 2D (x-z) plane, where x and z denote the horizontal and vertical directions, respectively. The velocity field was measured by an underwater PIV system deployed in Lake Michigan to investigate turbulent flows and mixing above the lake bottom, as a result of interaction between lake currents and filter feeding activities of quagga mussels.

Please see supporting document Bio-mixing-PIV.pdf for a description of the data collection and preliminary results. 

This dataset contains 6 of the 64 total image sets collected during the deployment. The 6 image sets are labeled as Cases A-F. The chosen sets represent a variety of hydrodynamic conditions. Sets A,B, and C represent the flow fields when the mussels were not actively feeding. Sets D,E, and F represent the flow fields when the mussels were actively feeding. 

The datasets for each case are served with BCO-DMO as plain text files with fields for Case (A-F), Time (s), x coordinate (cm), z coordinate (z), u(m/s), and v (m/s). Each file is approximately 32.1 MB. 

Links to the MatLab (2015b) version of these data are listed below. Each file is approximately 3.5 MB. Velocity measurements are listed in a 2D matrix format. Also listed are MatLab programs to read the data files and plot flow profiles. 

Case A
Case B
Case C
Case D
Case E
Case F
MatLab file descriptions

Plot profiles
Plot velocity fields
Convert to CSV


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Related Publications

Methods

Liao, Q., Bootsma, H. A., Xiao, J., Klump, J. V., Hume, A., Long, M. H., & Berg, P. (2009). Development of an in situ underwater particle image velocimetry (UWPIV) system. Limnology and Oceanography: Methods, 7(2), 169–184. doi:10.4319/lom.2009.7.169
Methods

Liao, Q., Wang, B., & Wang, P.-F. (2015). In situ measurement of sediment resuspension caused by propeller wash with an underwater particle image velocimetry and an acoustic doppler velocimeter. Flow Measurement and Instrumentation, 41, 1–9. doi:10.1016/j.flowmeasinst.2014.10.008
Methods

Wang, B., Liao, Q., Xiao, J., & Bootsma, H. A. (2013). A Free-Floating PIV System: Measurements of Small-Scale Turbulence under the Wind Wave Surface. Journal of Atmospheric and Oceanic Technology, 30(7), 1494–1510. doi:10.1175/jtech-d-12-00092.1