Model:TaylorNonLinearDiffuser

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TaylorNonLinearDiffuser


Metadata

Also known as
Model type Single
Model part of larger framework LandLab
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,


First name Rachel
Last name 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


First name Katy
Last name 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


First name Greg
Last name 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 "Code IRF or not" 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
Rachel Glade
Barnhart, Tucker
Nr. of publications: --
Total citations: 0
h-index: --"--" is not a number.
m-quotient: 0
Qrcode TaylorNonLinearDiffuser.png
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Total citations: 0
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