Model:SoilMoisture

SoilMoisture

Metadata

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	Regional-Scale, Landscape-Scale, Watershed-Scale
Model domain	Terrestrial, Hydrology
One-line model description	Compute the decay of soil moisture saturation at storm-interstorm time period
Extended model description	Landlab component that simulates root-zone average soil moisture at each cell using inputs of potential evapotranspiration, live leaf area index, and vegetation cover. This component uses a single soil moisture layer and models soil moisture loss through transpiration by plants, evaporation by bare soil, and leakage. The solution of water balance is based on Laio et. al 2001. The component requires fields of initial soil moisture, rainfall input (if any), time to the next storm and potential transpiration.

Keywords:	soil, soil moisture, evapotranspiration,

Name	Sai Nudurupati
Type of contact
Institute / Organization
Postal address 1
Postal address 2
Town / City	Seattle
Postal code	98195
State	Washington
Country	United States
Email address	saisiddu@uw.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	2016
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: RasterModelGrid A grid. runon: float, optional Runon from higher elevation (mm). f_bare: float, optional Fraction to partition PET for bare soil (None). soil_ew: float, optional Residual Evaporation after wilting (mm/day). intercept_cap: float, optional Plant Functional Type (PFT) specific full canopy interception capacity. zr: float, optional Root depth (m). I_B: float, optional Infiltration capacity of bare soil (mm/h). I_V: float, optional Infiltration capacity of vegetated soil (mm/h). pc: float, optional Soil porosity (None). fc: float, optional Soil saturation degree at field capacity (None). sc: float, optional Soil saturation degree at stomatal closure (None). wp: float, optional Soil saturation degree at wilting point (None). hgw: float, optional Soil saturation degree at hygroscopic point (None). beta: float, optional Deep percolation constant = 2*b+3 where b is water retention (None). LAI_max: float, optional Maximum leaf area index (m^2/m^2). LAIR_max: float, optional Reference leaf area index (m^2/m^2). method: str Method used Tr: float, optional Storm duration (hours). Tb: float, optional Inter-storm duration (hours). current_time: float Current time (years).
Input format	ASCII
Other input format
Describe output parameters	[[Describe output parameters model::"rainfall__daily_depth": { "dtype": float, "intent": "in", "optional": False, "units": "mm", "mapping": "cell", "doc": "Rain in (mm) as a field, allowing spatio-temporal soil moisture saturation analysis.", } "soil_moisture__initial_saturation_fraction": { "dtype": float, "intent": "in", "optional": False, "units": "None", "mapping": "cell", "doc": "initial soil_moisture__saturation_fraction", } "soil_moisture__root_zone_leakage": { "dtype": float, "intent": "out", "optional": False, "units": "mm", "mapping": "cell", "doc": "leakage of water into deeper portions of the soil not accessible to the plant", } "soil_moisture__saturation_fraction": { "dtype": float, "intent": "out", "optional": False, "units": "None", "mapping": "cell", "doc": "relative volumetric water content (theta) - limits=[0,1]", } "surface__evapotranspiration": { "dtype": float, "intent": "out", "optional": False, "units": "mm", "mapping": "cell", "doc": "actual sum of evaporation and plant transpiration", } "surface__potential_evapotranspiration_rate": { "dtype": float, "intent": "in", "optional": False, "units": "mm", "mapping": "cell", "doc": "potential sum of evaporation and potential transpiration", } "surface__runoff": { "dtype": float, "intent": "out", "optional": False, "units": "mm", "mapping": "cell", "doc": "runoff from ground surface", } "vegetation__cover_fraction": { "dtype": float, "intent": "in", "optional": False, "units": "None", "mapping": "cell", "doc": "fraction of land covered by vegetation", } "vegetation__live_leaf_area_index": { "dtype": float, "intent": "in", "optional": False, "units": "None", "mapping": "cell", "doc": "one-sided green leaf area per unit ground surface area", } "vegetation__plant_functional_type": { "dtype": int, "intent": "in", "optional": False, "units": "None", "mapping": "cell", "doc": "classification of plants (int), grass=0, shrub=1, tree=2, bare=3, shrub_seedling=4, tree_seedling=5", } "vegetation__water_stress": { "dtype": float, "intent": "out", "optional": False, "units": "None", "mapping": "cell", "doc": "parameter that represents nonlinear effects of water deficit on plants", }]]
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
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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

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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.
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Model info

Authors

Sai Nudurupati

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