Model:TaylorNonLinearDiffuser

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TaylorNonLinearDiffuser

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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 LandLab Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Landscape-Scale, Watershed-Scale Model domain Terrestrial, Hydrology One-line model description Model non-linear soil creep after Ganti et al. (2012) Extended model description Hillslope evolution using a Taylor Series expansion of the Andrews-Bucknam formulation of nonlinear hillslope flux derived following following Ganti et al., 2012. The flux is given as: qs = KS ( 1 + (S/Sc)**2 + (S / Sc)**4 + .. + (S / Sc)**2(n - 1) ) where K is is the diffusivity, S is the slope, Sc is the critical slope, and n is the number of terms. The default behavior uses two terms to produce a flux law as described by Equation 6 of Ganti et al., (2012). Keywords: hillslope, diffusion, Name Rachel Glade Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Los Alamos Postal code 87544 State Country United States Email address rachel.glade@colorado.edu Phone Fax Name Katy Barnhart Type of contact Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country United States Email address katherine.barnhart@colorado.edu Phone Fax Name Greg Tucker Type of contact Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country United States Email address gtucker@colorado.edu Phone Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language Python Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2017 Does model development still take place? No If above answer is no, provide end year model development 2020 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/landlab/landlab/tree/master/landlab Source csdms web address Program license type BSD or MIT X11 Program license type other Memory requirements Typical run time Describe input parameters grid: ModelGrid Landlab ModelGrid object linear_diffusivity: float, optional Hillslope diffusivity, m**2/yr Default = 1.0 slope_crit: float, optional Critical slope Default = 1.0 nterms: int, optional. default = 2 number of terms in the Taylor expansion. Two terms (Default) gives the behavior described in Ganti et al. (2012). dynamic_dt : boolean (optional, default is False) Keyword argument to turn on or off dynamic time-stepping. if_unstable : string (optional, default is "pass") Keyword argument to determine how potential instability due to slopes that are too high is handled. Options are "pass", "warn", and "raise". courant_factor : float (optional, default = 0.2) Factor to identify stable time-step duration when using dynamic timestepping. Input format ASCII Other input format Describe output parameters "soil__flux": { "dtype": float, "intent": "out", "optional": False, "units": "m^2/yr", "mapping": "link", "doc": "flux of soil in direction of link", } "topographic__elevation": { "dtype": float, "intent": "inout", "optional": False, "units": "m", "mapping": "node", "doc": "Land surface topographic elevation", } "topographic__slope": { "dtype": float, "intent": "out", "optional": False, "units": "m/m", "mapping": "link", "doc": "gradient of the ground surface", } 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? No If above answer is yes Other visualization software Describe processes represented by the model 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 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 https://landlab.github.io Model forum / discussion board https://github.com/landlab/landlab/issues Comments This part will be filled out by CSDMS staff OpenMI compliant Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "Code openmi compliant or not" property. BMI compliant Not yet"Not yet" is not in the list (Yes, No but planned, No but possible, No not possible) of allowed values for the "BMICompliant" property. WMT component Not yet"Not yet" is not in the list (Yes, In progress, No but possible, No not possible) of allowed values for the "Code CMT compliant or not" property. PyMT component Not yet"Not yet" is not in the list (Yes, In progress, No but possible, No not possible) of allowed values for the "Code PyMT compliant or not" property. Is this a data component Can be coupled with:

Model info Authors Rachel Glade Barnhart, Tucker Source code Go to external source code site Model citations Nr. of publications: -- Total citations: 0 h-index: --"--" is not a number. m-quotient: 0 QR-code Link to this page Other models by author DepthDependentDiffuser DepthDependentTaylorDiffuser ExponentialWeatherer Hogback TaylorNonLinearDiffuser

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