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Data and code for Bed and Bank Stress Partitioning in Bedrock Rivers
Federated Research Data Repository / dépôt fédéré de données de recherche
Li, Tingan; Venditti, Jeremy G.; Rennie, Colin D.; Nelson, Peter — 2021-10-30 The is the data and code for Bed and Bank Stress Partitioning in Bedrock Rivers submitted to Journal of Geophysical Research, Earth Surface. The data includes the velocity profiles, the topography, the width, and the shear stress distributions obaserved in the Fraser Canyons, the raw data is from the dataset https://doi.org/10.20383/101.0277; The data also includes the modelled ratio of wall to bed stress as a function of bank angles, bottom channel width and discharge, calculated from the Ray-Isovel Model; The Matlab code of the Ray-Isovel Model can be found from the file RIM, which was written by our coauther Peter Nelson. The main function of the model is fraser.m, you can run fraser.m using an example. If you want to change inputs, you can open getinput_fin1.m, and change varibles, for example ks, qw, bank angles.
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Representative point-integrated suspended sediment sampling in rivers
Federated Research Data Repository / dépôt fédéré de données de recherche
Church, Michael; Gitto, Alessandro B.; Venditti, Jeremy G.; Kostaschuk, Ray — 2017-03-07 Continuous, hour long, suspended sediment concentration data recorded at specific points in a flow profile in the Fraser River at Mission, BC. Data recorded in 2013. This dataset was originally deposited in the Simon Fraser University institutional repository.
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Fraser River Gravel Sand Transition
Federated Research Data Repository / dépôt fédéré de données de recherche
Venditti, Jeremy G. — 2019-03-13 This data archive contains data collected through the gravel-sand transition of the Fraser River. This dataset is composed of the 2007 Fraser GST Survey (Metadata_Fraser_GST_Topography_2007.zip) and the Fraser River Gravel Sand Transition Summary Figures (Summary_Figures_from_Venditti_et_al_2015_and_2019.xlsx).This dataset was originally deposited in the Simon Fraser University institutional repository.
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Granular Dynamics of Natural Sediment
Federated Research Data Repository / dépôt fédéré de données de recherche
Dudill, Ashley; Venditti, Jeremy G.; Church, Michael; Frey, Philippe — 2019-10-21 This archive contains data and videos collected in experiments examining the influence of a finer grain input to a coarser granular bed driven by a shallow fluid flow. The experiments were undertaken in the River Dynamics Laboratory at Simon Fraser University between October 2015 and February 2016. The first set of runs was undertaken using spherical glass beads. The second set with natural fluvial sediment. The file 'Experimental_Conditions_Dudill_etal_Granular_Dyanmics_Natural_Sediment_Oct_21_2019.xlsx' contains information on sediment properties, flume dimensions, imposed hydraulic conditions, observed infiltration behavior, and measured parameters including flow depth and bed slope. Each run listed in this spreadsheet has a video file(s) showing characeristic granular motions. These data were published in Dudill, A., J.G. Venditti, M. Church, P. Frey (2020). Comparing the behavior of spherical beads and natural grains in bedload mixtures. Earth Surface Processes and Landforms, 45: 831-840. The file 'Supporting_Material_for_Church_etal_April_1_2020.xlsx' contains observations from select experiments in the River Dynamics Laboratory at Simon Fraser University, including some not reported in Dudill et al. (2020). Also included are select laboratory experiments conducted at the Institut National de Recherche en Sciences et Technologies pour l'Environnement et l'Agriculture (IRSTEA, now INRAE) in Grenoble, France and reported in Dudill et al., (2017; 2018; full references in document). The combined data set are published in Church M., A. Dudill, J.G. Venditti, P. Frey (2020). Are results in geomorphology reproducible? Journal of Geophysical Research: Earth Surface. https://doi.org/10.1029/2020JF005553. Additional descriptions and dates for individual files can be found in item_metadata.csv. Software used was Excel. This dataset was originally deposited in the Simon Fraser University institutional repository.
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Underlying data for "Mechanisms of Dune Growth and Decay in Rivers" submitted to Geophysical Research Letters
Federated Research Data Repository / dépôt fédéré de données de recherche
Bradley, Ryan; Venditti, Jeremy G. — 2021-09-15 This data set includes information needed to understand, evaluate, and build upon the manuscript "Mechanisms of Dune Growth and Decay in Rivers". The included bathymetric surveys show how dunes grow and decay through the 2012 flood in the Fraser river. Dunes grow as flood levels increase by amalgamating with smaller dunes once a flow threshold is passed. After amalgamation, changes to individual dunes are subtler and likely driven by changes to the flow field. As the flood recedes, smaller features appear on the backs of big dunes, reworking and flattening the bed. Small dunes on the backs of big dunes may be a signature of dune decay. Analysis of gauge data from Water Survey of Canada and the Canadian Hydrographic Survey, included here, show that growth by amalgamation and decay by secondary features occur at a common flow threshold. The results can be used to improve how we model floods and interpret fossilized dunes in the rock record on Earth and other planetary surfaces.
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Sediment and Acoustic data from Fraser River at Mission, BC; 2012-2014
Federated Research Data Repository / dépôt fédéré de données de recherche
Haught, Dan R.W.; Venditti, Jeremy G. — 2023-01-26 This dataset summarizes data collected and utilized in three papers: 1) Haught, D., J. G. Venditti, andS. A. Wright (2017), Calculation of in situ acoustic sediment attenuation using off-the-shelf horizontal ADCPs in low concentration settings, Water Resour. Res., 53, doi:10.1002/2016WR019695. 2) Haught, D., Venditti, J. G., & Wright, S.A. (2020). Application of multifrequency acoustic inversions using three horizontally profiling ADCPs. Water Resources Research, 56, e2019WR025298. https://doi.org/10.1029/2019WR025298 3) Haught, D. & Venditti, J.V. (in press). Acoustically-derived sediment-index methods in large rivers: assessment of two acoustic inversion models. Water Resources Research. and associated with: 4) Lamb, M.P., de Leeuw, J., Fischer, W.W. et al. Mud in rivers transported as flocculated and suspended bed material. Nat. Geosci. 13, 566–570 (2020). https://doi.org/10.1038/s41561-020-0602-5 We include both previously published and unpublished data not used in any of the above papers. This dataset provides physical samples of suspended sediment analyzed for concentration and particle size distribution, along with bed material samples analyzed for size distribution. Additionally, we include acoustic data from three side-looking shore-mounted ADCPs collected roughly over three years, boat-mount vertical ADCP data collected when sampling suspended sediment, along with inversion results published in the first three paper listed above. Lastly, we include discharge measurements that were used to develop an index-velocity and stage-cross-sectional area relation to develop continuous discharge used in the above publications.
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Scour Pool Incision in Bedrock Canyons
Federated Research Data Repository / dépôt fédéré de données de recherche
Cao, Zhihao; Venditti, Jeremy G. — 2023-03-13 Support data for M.Sc Thesis: Scour pool incision in bedrock canyons. A flume experiment was conducted to investigate the effect of lateral constrictions on the initiation and evolution of the scour pool morphology in bedrock canyons; as well as how flow constriction affect the patterns of flow, erosion, and sediment deposition in the canyon. Raw data and calculations used to generate the figures and tables. This dataset was originally deposited in the Simon Fraser University institutional repository.

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(auteur : Venditti, Jeremy G.)

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