Model:River Erosion Model

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River Erosion Model

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as REM Model type Single Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 1D Spatial extent Watershed-Scale Model domain Terrestrial, Hydrology One-line model description An intermediate complexity model for simulating stream channel evolution (years to decades) at the watershed scale. Extended model description REM mechanistically simulates channel bed aggradation/degradation and channel widening in river networks. It has successfully been applied to alluvial river systems to simulate channel change over annual and decadal time scales. REM is also capable of running Monte Carlo simulations (in parallel to reduce computational time) to quantify uncertainty in model predictions. Keywords: , Name Roderick Lammers Type of contact Model developer Institute / Organization University of Georgia Postal address 1 Postal address 2 Town / City Athens Postal code 30606 State Georgia Country United States Email address rodlammers@gmail.com Phone Fax Supported platforms Windows Other platform Has not been tested on non-Windows platforms Programming language C++ Other program language Code optimized Single Processor, Multiple Processors Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2017 Does model development still take place? Yes If above answer is no, provide end year model development Code development status Only maintenance When did you indicate the 'code development status'? 2020 Model availability As code Source code availability (Or provide future intension) Through web repository Source web address https://github.com/rodlammers/REM Source csdms web address Program license type Other Program license type other MIT Memory requirements Typical run time 5-10 minutes for single run; hours for Monte Carlo runs Describe input parameters Channel geometry (e.g. bank height/angle, width, longitudinal profile); bed grain size distribution; discharge time series; sediment input time series; bank soil parameters (critical shear stress and cohesion) Input format ASCII Other input format Describe output parameters Channel geometry; sediment export Output format ASCII Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? Yes If above answer is yes Other visualization software R package REMvisualizer Describe processes represented by the model Sediment transport, channel bed aggradation/degradation, fluvial bank erosion (excess shear stress) and bank failure (mass wasting). See Lammers and Bledsoe (2018) and Lammers and Bledsoe (2019) for more information: https://www.sciencedirect.com/science/article/pii/S0022169418307303 https://www.sciencedirect.com/science/article/pii/S0301479718314968 Describe key physical parameters and equations Describe length scale and resolution constraints Describe time scale and resolution constraints Describe any numerical limitations and issues Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets Modeling testing performed on data from the lower Colorado River and North Fork Toutle River. Model input data available here: https://github.com/rodlammers/REM Upload test data sets if available: Describe ideal data for testing Long term (at least 10 years) of data on stream channel evolution. This would include changes in both channel width and bed elevation throughout a small channel network. Also have a continuous time series of discharge and physical characteristics of the stream channels (bed grain size distribution, bank soil erodibility, etc.). Do you have current or future plans for collaborating with other researchers? Is there a manual available? Yes Upload manual if available: Model website if any https://github.com/rodlammers/REM Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant BMI compliant WMT component PyMT component Is this a data component Can be coupled with:

Model info Authors Roderick Lammers Source code Go to external source code site Model citations Nr. of publications: 2 Total citations: 22 h-index: 2 m-quotient: 0.25 QR-code Link to this page Other models by author River Erosion Model

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Nr. of publications:	2
Total citations:	22
h-index:	2
m-quotient:	0.25

Featured publication(s)	Year	Model described	Type of Reference	Citations
Lammers, Roderick W.; Bledsoe, Brian P.; 2018. A network scale, intermediate complexity model for simulating channel evolution over years to decades. Journal of Hydrology, 566, 886–900. 10.1016/j.jhydrol.2018.09.036 (View/edit entry)	2018	River Erosion Model	Model overview	13
Lammers, Roderick W.; Bledsoe, Brian P.; 2019. Quantifying pollutant loading from channel sources: Watershed-scale application of the River Erosion Model. Journal of Environmental Management, 234, 104–114. 10.1016/j.jenvman.2018.12.074 (View/edit entry)	2019	River Erosion Model	Model application	9
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