Model:SoilInfiltrationGreenAmpt

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SoilInfiltrationGreenAmpt

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as The Landlab SoilInfiltrationGreenAmpt component Model type Modular 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, Reach-Scale, Patch-Scale Model domain Terrestrial, Hydrology One-line model description Landlab component that calculates soil infiltration based on the Green-Ampt solution. Extended model description For each time step, this component calculates an infiltration rate for a given model location and updates surface water depths. Based on the Green-Ampt method, it follows the form of Julien et al., 1995. Keywords: Name Francis Rengers Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Golden Postal code 80400 State Colorado Country United States Email address frengers@usgs.gov Phone Fax Name Jordan Adams Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country United States Email address jordan.adams@colorado.edu Phone Fax Name Daniel Hobley Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country United States Email address Phone Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language Python Other program language Code optimized 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 Code development status When did you indicate the 'code development status'? Model availability Source code availability (Or provide future intension) Through web repository Source web address https://github.com/landlab/landlab/blob/master/landlab/components/soil_moisture/infiltrate_soil_green_ampt.py Source csdms web address Program license type BSD or MIT X11 Program license type other Memory requirements Typical run time Describe input parameters This model expects that the user has downloaded and installed the Landlab modeling framework. It operates on a Landlab RasterModelGrid instance. Other input parameters include: hydraulic_conductivity soil_bulk_density rock_density initial_soil_moisture_content soil_type volume_fraction_coarse_fragments coarse_sed_flag surface_water_minimum_depth soil_pore_size_distribution_index soil_bubbling_pressure wetting_front_capillary_pressure_head Input format ASCII Other input format Describe output parameters After infiltration occurs, the component returns an updated 'surface_water__depth' field, as well as an updated 'soil_water_infiltration__depth' field that tracks how much water has been infiltrated into the soil column. Output format 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 Soil infiltration, as calculated using the Green-Ampt equation. Describe key physical parameters and equations hydraulic_conductivity : The soil effective hydraulic conductivity. soil_bulk_density : The dry bulk density of the soil. rock_density : The density of the soil constituent material (i.e., lacking porosity). initial_soil_moisture_content : The fraction of the initial pore space filled with water. soil_type : A soil type to automatically set soil_pore_size_distribution_index and soil_bubbling_pressure, using mean values from Rawls et al., 1992. volume_fraction_coarse_fragments : The fraction of the soil made up of rocky fragments with very little porosity, with diameter > 2 mm. coarse_sed_flag : If this flag is set to true, the fraction of coarse material in the soil column with be used as a correction for phi, the porosity factor. surface_water_minimum_depth : A minimum water depth to stabilize the solutions for surface flood modelling. Leave as the default in most normal use cases. soil_pore_size_distribution_index : An index describing the distribution of pore sizes in the soil, and controlling effective hydraulic conductivity at varying water contents, following Brooks and Corey (1964). Can be set by soil_type. Typically denoted "lambda". soil_bubbling_pressure : The bubbling capillary pressure of the soil, controlling effective hydraulic conductivity at varying water contents, following Brooks and Corey (1964). Can be set by soil_type. Typically denoted "h_b". wetting_front_capillary_pressure_head : The effective head at the wetting front in the soil driven by capillary pressure in the soil pores. If not set, will be calculated by the component from the pore size distribution and bubbling pressure, following Brooks and Corey. Describe length scale and resolution constraints This component has been tested on the reach and watershed scale (<= 100 km^2), but can likely run effectively on even larger scales as needed. Describe time scale and resolution constraints The component has been tested on event to annual time scales, on a range of resolutions (1 m to 100 m) but would likely run efficiently on even longer time scales and finer resolutions). Describe any numerical limitations and issues Describe available calibration data sets The component is unit tested against known analytical solutions as part of Landlab. 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 http://landlab.readthedocs.io/en/latest/landlab.components.greenampt.html Model forum / discussion board Please report any issues to: 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 Is this a data component Can be coupled with:

Model info Authors Francis Rengers Adams, Hobley Source code Go to external source code site Model citations Nr. of publications: 1 Total citations: 91 h-index: 1 m-quotient: 0.1 QR-code Link to this page Other models by author GISKnickFinder GullyErosionProfiler1D SoilInfiltrationGreenAmpt

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Nr. of publications:	1
Total citations:	91
h-index:	1
m-quotient:	0.1

Publication(s)	Year	Type	Cited
. . , , . [[| (View/edit entry)]]		KWAVE SoilInfiltrationGreenAmpt	Source code ref.	Template:SEM 2469649585