Model:GullyErosionProfiler1D

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GullyErosionProfiler1D

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as 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 Reach-Scale Model domain Terrestrial, Hydrology One-line model description This model is designed to simulate longitudinal profiles with headward advancing headcuts. Extended model description This model is designed to simulate longitudinal profiles with headward advancing headcuts. This model simulates gully erosion on the centennial-scale given information such as average rainfall and infiltration rates. The modeler also specifies a headcut erosion rate and or a rule for headcut retreat (either discharge-dependent or height-dependent retreat). Keywords: Gully, elevation profile, Matlab, arid alluvial channel, Name Francis Rengers Type of contact Model developer Institute / Organization University of Colorado Postal address 1 UCB 399 Postal address 2 Town / City Boulder Postal code 80309-0399 State Colorado Country United States Email address francis.rengers@colorado.edu Phone Fax Supported platforms Mac OS, Windows Other platform Programming language Matlab Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development Does model development still take place? No If above answer is no, provide end year model development 2012 Code development status As is, no updates are provided When did you indicate the 'code development status'? 2020 Model availability As code Source code availability (Or provide future intension) Through CSDMS repository Source web address Source csdms web address https://github.com/csdms-contrib/gullyerosionprofiler1d Program license type GPL v2 Program license type other Memory requirements Typical run time Depends on the settings. Can be several hours. Describe input parameters The input file is a text file and users are required to input: Time (in model years) dT (the time step in fractions of a year) tauc (Critical Shear stress for portions of the channel that are vegetated in Pascals) taucWepp (Critical Shear stress for portions of the channel that are soil in Pascals) lenzone (the length of channel that is bare soil in Meters) Pmmphr (Rainfall to be used for erosion in Millimeters per Hour) tval (this is the number of loop iterations before a profile is saved as output) Immphr (Infiltration to be used for erosion in Millimeters per Hour) One additional input: One must supply the input length of the channel as a matlab data array called xcell.mat Input format ASCII Other input format Describe output parameters The output are elevation values that represent the gully channel profile. 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 Matlab Other visualization software In order to plot the output data, it is probably easiest in Matlab Describe processes represented by the model This code will erode cells according to a shear stress and also deposit sediment based on the concentration of sediment in a modeled water column. Additionally it has a headcut that migrates upstream and as the headcut erodes it deposits sediment downstream that the model must erode. Describe key physical parameters and equations manning's n for vegetation manning's n for soil critical shear stress for vegetation critical shear stress for soil rainfall infiltration Describe length scale and resolution constraints This works for channels of hundreds of meters with 1 m cells Describe time scale and resolution constraints It is typically run for times no less than 25 years and no greater than 700 years. Describe any numerical limitations and issues Numerical instabilities occur if the time step is too large. Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets Upload test data sets if available: Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? Is there a manual available? No Upload manual if available: Model website if any Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Francis Rengers Source code View in CSDMS GitHub repository Model citations Nr. of publications: 1 Total citations: 53 h-index: 1 m-quotient: 0.08 QR-code Link to this page Other models by author GISKnickFinder GullyErosionProfiler1D SoilInfiltrationGreenAmpt

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Nr. of publications:	1
Total citations:	53
h-index:	1
m-quotient:	0.08

Featured publication(s)	Year	Model described	Type of Reference	Citations
Rengers, Francis K.; Tucker, G. E.; 2014. Analysis and modeling of gully headcut dynamics, North American high plains. Journal of Geophysical Research: Earth Surface, 119, 983–1003. 10.1002/2013JF002962 (View/edit entry)	2014	GullyErosionProfiler1D	Model overview	53
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