DOI: 10.5066/p9sttc43
title: Archive of Bank Stability and Toe Erosion Model (BSTEM) Simulations of Caulks Creek, Wildwood, Missour

description: The Bank Stability and Toe Erosion Model (BSTEM) version 3.3.1 (Ursic and Langendoen, 2021) was used to predict bank retreat at five locations along Caulks Creek, Wildwood, Missouri, for a selection of design storm scenarios. BSTEM is a macro-enabled Excel spreadsheet (.xlsm file) that simulates the retreat of a bank profile due to a combination of fluvial and geotechnical processes. These BSTEM simulations build on hydrologic and hydraulic modeling of Caulks Creek for a wide variety of design storm scenarios that represent both current and future climate conditions (Heimann and others, 2024). The six design storm scenarios selected for BSTEM simulations include storms of 6-hour duration with 2-year (2yr), 10-year (10yr), and 100-year (100yr) recurrence intervals (0.5, 0.1, and 0.01 annual exceedance probabilities) under both current and predicted future climate conditions in year 2099 under representative concentration pathway 8.5 (2099RCP8.5) and under normal antecedent response conditions.

Inputs to BSTEM include a bank elevation profile, bank layer thicknesses, bank material properties, and time series of water surface elevation and shear stress for a particular flow event. Bank elevation profiles were extracted from terrestrial light detection and ranging (lidar) scans of the bank face collected in 2022 (Hix, 2024). Bank layer thicknesses and material properties were based on sediment samples, field observations, and preliminary test BSTEM simulations using a real 2022 flow event. The water surface elevation and shear stress time series were extracted from the hydraulic model of Caulks Creek (Heimann and others, 2024). A full description and analysis of these simulations is provided in LeRoy and others (2024).

This archive includes the following:
> A .csv file with coordinates and bank top elevations of the five BSTEM locations
> A .csv file with grain size summary statistics for sediment samples collected at four of the five BSTEM locations
> A zipped folder containing .csv files with grain size distributions for sediment samples collected at four of the five BSTEM locations
> A copy of the BSTEM version 3.3.1 model (.xlsm file) and user manual (Ursic and Langendoen, 2021)
> A zipped folder containing 30 stochastic BSTEM simulations as .xlsm files for design storm scenarios at five locations in Caulks Creek
> A zipped folder containing 6 BSTEM simulations as .xlsm files for real flow events in Caulks Creek from July 2022 and August 2022, used as preliminary test simulations

References Cited:
Heimann, D.C., Cigrand, C. V., Burk, T.J., Hix, K.D., and LeRoy, J.Z., 2024, Archive of hydrologic and hydraulic models used in the simulation of hydraulic stream characteristics of Caulks Creek, Wildwood, Missouri: U.S. Geological Survey data release, https://doi.org/10.5066/P9PBF12F.

Hix, K.D., 2024, Terrestrial Light Detection and Ranging Topographic Data at Select Locations in Caulks Creek in Wildwood, Missouri: U.S. Geological Survey data release. 

LeRoy, J.Z., Heimann, D.C., Hix, K.D., Cigrand, C.V., and Burk, T.J. 2024, Geomorphic Change, Hydrology, and Hydraulics of Caulks Creek, Wildwood, Missouri: U.S. Geological Survey Scientific Investigations Report.

Ursic, M.E., and Langendoen, E.J., 2021, Bank Stability and Toe Erosion (BSTEM) – User’s Manual, USDA Agricultural Research Service National Sedimentation Laboratory: Research Report No. 82.