Model:SPACE - Revision history

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	\|Start year development=2016		\|Start year development=2016
	\|Does model development still take place?=Yes		\|Does model development still take place?=Yes
			\|DevelopmentCode=Only maintenance
			\|DevelopmentCodeYearChecked=2020
	\|Source code availability=Through web repository		\|Source code availability=Through web repository
	\|Source web address=https://github.com/landlab/landlab~~/tree/master/landlab/components/space~~		\|Source web address=https://github.com/landlab/landlab
	\|Program license type=BSD or MIT X11		\|Program license type=BSD or MIT X11
	\|Memory requirements=variable		\|Memory requirements=variable

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	== Issues ==		== Issues ==

WikiSysop at 16:20, 26 September 2019

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	\|ModelDomain=Terrestrial		\|ModelDomain=Terrestrial
	\|Spatial dimensions=2D		\|Spatial dimensions=2D
	\|Spatialscale=Continental, ~~Regional~~-Scale, ~~Landscape~~-Scale, ~~Watershed~~-Scale, ~~Reach~~-Scale		\|Spatialscale=Continental, Landscape-Scale, Reach-Scale, Regional-Scale, Watershed-Scale
	\|One-line model description=Landlab component for 2-D calculation of fluvial sediment transport and bedrock erosion		\|One-line model description=Landlab component for 2-D calculation of fluvial sediment transport and bedrock erosion
	\|Extended model description=The Landlab SPACE (Stream Power with Alluvium Conservation and Entrainment) enables modeling of bedrock, alluviated, and bedrock-alluvial rivers by simultaneously conserving mass in three reservoirs: the water column, the alluvial bed, and the underlying bedrock. SPACE allows dynamic transitions between detachment-limited, transport-limited, and intermediate states. SPACE calculates sediment fluxes, alluvial layer thickness, and bedrock erosion at all nodes within the model domain. An extended description of the model may be found in Shobe et al (2017, Geoscientific Model Development).		\|Extended model description=The Landlab SPACE (Stream Power with Alluvium Conservation and Entrainment) enables modeling of bedrock, alluviated, and bedrock-alluvial rivers by simultaneously conserving mass in three reservoirs: the water column, the alluvial bed, and the underlying bedrock. SPACE allows dynamic transitions between detachment-limited, transport-limited, and intermediate states. SPACE calculates sediment fluxes, alluvial layer thickness, and bedrock erosion at all nodes within the model domain. An extended description of the model may be found in Shobe et al (2017, Geoscientific Model Development).
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	\|IRF interface=Yes		\|IRF interface=Yes
	\|CMT component=No but possible		\|CMT component=No but possible
			\|PyMT component=Yes
	}}		}}
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	{{Model identity		{{Model identity
	\|Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component		\|Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component
			\|ModelFramework=LandLab
	\|Model type=Single		\|Model type=Single
	}}		}}

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	{{Documentation model		{{Documentation model
	\|Manual model available=Yes		\|Manual model available=Yes
	\|Model manual=~~File:~~SPACE manual and examples.zip		\|Model manual=SPACE manual and examples.zip
	}}		}}
	{{Additional comments model}}		{{Additional comments model}}

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	\|Model manual=SPACE manual and examples,		\|Model manual=File:SPACE manual and examples.zip
	}}		}}
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	{{CSDMS staff part		{{CSDMS staff part
	\|OpenMI compliant=~~Not yet~~		\|OpenMI compliant=Yes
	\|IRF interface=~~Not yet~~		\|IRF interface=Yes
	\|CMT component=~~Not yet~~		\|CMT component=No but possible
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Cmshobe: /* Introduction */

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Introduction

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	==Introduction==		==Introduction==
			SPACE is the Stream Power with Alluvium Conservation and Entrainment model, a Landlab component for 2-D calculation of fluvial sediment transport and bedrock erosion. SPACE was developed by Charles Shobe, Gregory Tucker, and Katherine Barnhart at the University of Colorado. It is not a stand-alone model, but is a component of the Landlab modeling toolkit.

	== History ==		== History ==

Cmshobe: Created page with "{{Model identity |Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component |Model type=Single }} {{Start models incorporated}} {{End a tab..."

2018-02-01T02:14:54Z

Created page with "{{Model identity |Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component |Model type=Single }} {{Start models incorporated}} {{End a tab..."

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{{Model identity
|Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component
|Model type=Single
}}
{{Start models incorporated}}
{{End a table}}
{{Model identity2
|ModelDomain=Terrestrial
|Spatial dimensions=2D
|Spatialscale=Continental, Regional-Scale, Landscape-Scale, Watershed-Scale, Reach-Scale
|One-line model description=Landlab component for 2-D calculation of fluvial sediment transport and bedrock erosion
|Extended model description=The Landlab SPACE (Stream Power with Alluvium Conservation and Entrainment) enables modeling of bedrock, alluviated, and bedrock-alluvial rivers by simultaneously conserving mass in three reservoirs: the water column, the alluvial bed, and the underlying bedrock. SPACE allows dynamic transitions between detachment-limited, transport-limited, and intermediate states. SPACE calculates sediment fluxes, alluvial layer thickness, and bedrock erosion at all nodes within the model domain. An extended description of the model may be found in Shobe et al (2017, Geoscientific Model Development).
}}
{{Start model keyword table}}
{{Model keywords
|Model keywords=River Erosion
}}
{{Model keywords
|Model keywords=Sediment Transport
}}
{{Model keywords
|Model keywords=Bedrock Erosion
}}
{{Model keywords
|Model keywords=Landscape Evolution
}}
{{End a table}}
{{Modeler information
|First name=Charles
|Last name=Shobe
|Type of contact=Model developer
|Institute / Organization=CIRES and Department of Geological Sciences, University of Colorado
|Postal address 1=UCB 399
|Town / City=Boulder
|Postal code=80309-0399
|Country=United States
|State=Colorado
|Email address=charles.shobe@colorado.edu
}}
{{Model technical information
|Supported platforms=Unix, Linux, Mac OS, Windows
|Programming language=Python
|Code optimized=Single Processor
|Start year development=2016
|Does model development still take place?=Yes
|Source code availability=Through web repository
|Source web address=https://github.com/landlab/landlab/tree/master/landlab/components/space
|Program license type=BSD or MIT X11
|Memory requirements=variable
|Typical run time=variable
}}
{{Input - Output description
|Describe input parameters=This component operates on a Landlab RasterModelGrid instance, and requires that the user has downloaded and installed Landlab.

Parameters
----------
grid : ModelGrid
Landlab ModelGrid object
K_sed : float
Erodibility constant for sediment (units vary).
K_br : float
Erodibility constant for bedrock (units vary).
F_f : float
Fraction of permanently suspendable fines in bedrock [-].
phi : float
Sediment porosity [-].
H_star : float
Sediment thickness required for full entrainment [L].
v_s : float
Effective settling velocity for chosen grain size metric [L/T].
m_sp : float
Drainage area exponent (units vary)
n_sp : float
Slope exponent (units vary)
sp_crit_sed : float
Critical stream power to erode sediment [E/(TL^2)]
sp_crit_br : float
Critical stream power to erode rock [E/(TL^2)]
method : string
Either "simple_stream_power", "threshold_stream_power", or
"stochastic_hydrology". Method for calculating sediment
and bedrock entrainment/erosion.
discharge_method : string
Either "area_field" or "discharge_field". If using stochastic
hydrology, determines whether component is supplied with
drainage area or discharge.
area_field : string or array
Used if discharge_method = 'area_field'. Either field name or
array of length(number_of_nodes) containing drainage areas [L^2].
discharge_field : string or array
Used if discharge_method = 'discharge_field'.Either field name or
array of length(number_of_nodes) containing drainage areas [L^2/T].
solver : string
Solver to use. Options at present include:
(1) 'basic' (default): explicit forward-time extrapolation.
Simple but will become unstable if time step is too large.
(2) 'adaptive': subdivides global time step as needed to
prevent slopes from reversing and alluvium from going
negative.
|Other input format=Passed in as arguments in Landlab component call
|Describe output parameters=Returns/updates Landlab grid fields:

'topographic__elevation' : Topographic surface elevation
'bedrock__elevation' : Bedrock surface elevation
'soil__depth' : Depth of alluvial layer on river bed
'sediment__flux' : Sediment flux out of each grid node
|Other output format=Landlab grid field
|Pre-processing software needed?=No
|Post-processing software needed?=No
|Visualization software needed?=No
}}
{{Process description model
|Describe processes represented by the model=Fluvial sediment erosion and deposition, fluvial bedrock erosion, the bedrock cover effect.
|Describe key physical parameters and equations=The key equations and parameters are described in Shobe et al (2017, Geoscientific Model Development).
|Describe length scale and resolution constraints=Length scale should be reach or larger (~100m and up). Run time depends on grid size and resolution.
|Describe time scale and resolution constraints=Time scale will be set by discharge calculation method. The model is in general intended for annual to geological time scales, but shorter time scales may be used if Landlab dynamic flow routing components are employed.
|Describe any numerical limitations and issues=Becomes very slow if run on domains with pits. Options include filling pits before running the model, or using the Landlab DepressionFinderAndRouter.
}}
{{Model testing
|Describe available calibration data sets=The model is tested against three known analytical solutions (see Shobe et al., 2017 for details).
}}
{{Users groups model}}
{{Documentation model
|Manual model available=Yes
|Model manual=SPACE manual and examples,
}}
{{Additional comments model}}
{{CSDMS staff part
|OpenMI compliant=Not yet
|IRF interface=Not yet
|CMT component=Not yet
}}
{{Start coupled table}}
{{End a table}}
{{End headertab}}

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==Introduction==

== History ==

== References ==
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== Issues ==

== Help ==
{{#ifexist:Model_help:{{PAGENAME}}|[[Model_help:{{PAGENAME}}]]|}}

== Input Files ==

== Output Files ==

Model:SPACE - Revision history

WikiSysop: Text replacement - "{{End headertab}}" to "{{End headertab}} {{{{PAGENAME}}_autokeywords}}"

WikiSysop at 21:21, 15 April 2020

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WikiSysop at 16:20, 26 September 2019

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Cmshobe: /* Introduction */

Cmshobe: Created page with "{{Model identity |Model also known as=Landlab Stream Power with Alluvium Conservation and Entrainment component |Model type=Single }} {{Start models incorporated}} {{End a tab..."

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