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Single Processor +
Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
16:11:32, 7 June 2020 +
grid : a ModelGrid<br>
A grid.
K_sp … grid : a ModelGrid<br></br>A grid.</br></br>K_sp : float (time unit must be *years*)<br></br>K in the stream power equation; the prefactor on the erosion equation (units vary with other parameters).</br></br>g : float (m/s**2)<br></br>Acceleration due to gravity.</br></br>rock_density : float (Kg m**-3)<br></br>Bulk intact rock density.</br></br>sediment_density : float (Kg m**-3)<br></br>Typical density of loose sediment on the bed.</br></br>fluid_density : float (Kg m**-3)<br></br>Density of the fluid.</br></br>runoff_rate : float, array or field name (m/s)<br></br>The rate of excess overland flow production at each node (i.e., rainfall rate less infiltration).</br></br>pseudoimplicit_repeats : int<br></br>Number of loops to perform with the pseudoimplicit iterator, seeking a stable solution. Convergence is typically rapid.</br></br>return_stream_properties : bool<br></br>Whether to perform a few additional calculations in order to set the additional optional output fields, 'channel__width', 'channel__depth', and </br>'channel__discharge' (default False).</br></br>sed_dependency_type : {'generalized_humped', 'None', 'linear_decline', 'almost_parabolic'}<br></br>The shape of the sediment flux function. For definitions, see Hobley et al., 2011. 'None' gives a constant value of 1.</br>NB: 'parabolic' is currently not supported, due to numerical stability issues at channel heads.</br></br>Qc : {'power_law', 'MPM'}<br></br>Whether to use simple stream-power-like equations for both sediment transport capacity and erosion rate, or more complex forms based directly on the </br>Meyer-Peter Muller equation and a shear stress based erosion model consistent with MPM (per Hobley et al., 2011).</br></br>If ``sed_dependency_type == 'generalized_humped'``...<br></br></br>kappa_hump : float<br></br>Shape parameter for sediment flux function. Primarily controls function amplitude (i.e., scales the function to a maximum of 1). Default follows Leh </br>valley values from Hobley et al., 2011.</br></br>nu_hump : float<br></br>Shape parameter for sediment flux function. Primarily controls rate of rise of the "tools" limb. Default follows Leh valley values from Hobley et al., </br>2011.</br></br>phi_hump : float<br></br>Shape parameter for sediment flux function. Primarily controls rate of fall of the "cover" limb. Default follows Leh valley values from Hobley et al., </br>2011.</br></br>c_hump : float<br></br>Shape parameter for sediment flux function. Primarily controls degree of function asymmetry. Default follows Leh valley values from Hobley et al., </br>2011.</br></br>If ``Qc == 'power_law'``...<br></br></br>m_sp : float<br></br>Power on drainage area in the erosion equation.</br></br>n_sp : float<br></br>Power on slope in the erosion equation.</br></br>K_t : float (time unit must be in *years*)<br></br>Prefactor in the transport capacity equation.</br></br>m_t : float<br></br>Power on drainage area in the transport capacity equation.</br></br>n_t : float<br></br>Power on slope in the transport capacity equation.</br></br>if ``Qc == 'MPM'``...<br></br></br>C_MPM : float<br></br>A prefactor on the MPM relation, allowing tuning to known sediment saturation conditions (leave as 1. in most cases).</br></br>a_sp : float<br></br>Power on shear stress to give erosion rate.</br></br>b_sp : float<br></br>Power on drainage area to give channel width.</br></br>c_sp : float<br></br>Power on drainage area to give discharge.</br></br>k_w : float (unit variable with b_sp)<br></br>Prefactor on A**b_sp to give channel width.</br></br>k_Q : float (unit variable with c_sp, but time unit in *seconds*)<br></br>Prefactor on A**c_sp to give discharge.</br></br>mannings_n : float<br></br>Manning's n for the channel.</br></br>threshold_shear_stress : None or float (Pa)<br></br>The threshold shear stress in the equation for erosion rate. If None, implies that *set_threshold_from_Dchar* is True, and this parameter will get set </br>from the Dchar value and critical Shields number.</br></br>Dchar :None, float, array, or field name (m)<br></br>The characteristic grain size on the bed, that controls the relationship between critical Shields number and critical shear stress. If None, implies </br>that *set_Dchar_from_threshold* is True, and this parameter will get set from the threshold_shear_stress value and critical Shields number.</br></br>set_threshold_from_Dchar : bool<br></br>If True (default), threshold_shear_stress will be set based on Dchar and threshold_Shields.</br></br>set_Dchar_from_threshold : bool<br></br>If True, Dchar will be set based on threshold_shear_stress and threshold_Shields. Default is False.</br></br>threshold_Shields : None or float<br></br>The threshold Shields number. If None, implies that *slope_sensitive_threshold* is True.</br></br>slope_sensitive_threshold : bool<br></br>If True, the threshold_Shields will be set according to 0.15 * S ** 0.25, per Lamb et al., 2008 & Hobley et al., 2011.</br></br>flooded_depths : array or field name (m)<br></br>Depths of flooding at each node, zero where no lake. Note that the component will dynamically update this array as it fills nodes with sediment </br>(...but does NOT update any other related lake fields).y et al., 2011.
flooded_depths : array or field name (m)<br>
Depths of flooding at each node, zero where no lake. Note that the component will dynamically update this array as it fills nodes with sediment
(...but does NOT update any other related lake fields).
"channel__bed_shear_stress":
{
"dtype": f … "channel__bed_shear_stress": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": False,</br>"units": "Pa",</br>"mapping": "node",</br>"doc": "Shear exerted on the bed of the channel, assuming all discharge travels along a single, self-formed channel",</br>}</br></br>"channel__depth": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": True,</br>"units": "m",</br>"mapping": "node",</br>"doc": "Depth of the a single channel carrying all runoff through the node",</br>}</br></br>"channel__discharge": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": False,</br>"units": "m**3/s",</br>"mapping": "node",</br>"doc": "Volumetric water flux of the a single channel carrying all runoff through the node",</br>}</br></br>"channel__width": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": True,</br>"units": "m",</br>"mapping": "node",</br>"doc": "Width of the a single channel carrying all runoff through the node",</br>}</br></br>"channel_sediment__relative_flux": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": False,</br>"units": "-",</br>"mapping": "node",</br>"doc": "The fluvial_sediment_flux_into_node divided by the fluvial_sediment_transport_capacity",</br>}</br></br>"channel_sediment__volumetric_flux": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": False,</br>"units": "m**3/s",</br>"mapping": "node",</br>"doc": "Total volumetric fluvial sediment flux brought into the node from upstream",</br>}</br></br>"channel_sediment__volumetric_transport_capacity": </br>{</br>"dtype": float,</br>"intent": "out",</br>"optional": False,</br>"units": "m**3/s",</br>"mapping": "node",</br>"doc": "Volumetric transport capacity of a channel carrying all runoff through the node, assuming the Meyer-Peter Muller transport equation",</br>}</br></br>"drainage_area": </br>{</br>"dtype": float,</br>"intent": "in",</br>"optional": False,</br>"units": "m**2",</br>"mapping": "node",</br>"doc": "Upstream accumulated surface area contributing to the node's discharge",</br>}</br></br>"flow__link_to_receiver_node": </br>{</br>"dtype": int,</br>"intent": "in",</br>"optional": False,</br>"units": "-",</br>"mapping": "node",</br>"doc": "ID of link downstream of each node, which carries the discharge",</br>}</br></br>"flow__receiver_node": </br>{</br>"dtype": int,</br>"intent": "in",</br>"optional": False,</br>"units": "-",</br>"mapping": "node",</br>"doc": "Node array of receivers (node that receives flow from current node)",</br>}</br></br>"flow__upstream_node_order": </br>{</br>"dtype": int,</br>"intent": "in",</br>"optional": False,</br>"units": "-",</br>"mapping": "node",</br>"doc": "Node array containing downstream-to-upstream ordered list of node IDs",</br>}</br></br>"topographic__elevation": </br>{</br>"dtype": float,</br>"intent": "inout",</br>"optional": False,</br>"units": "m",</br>"mapping": "node",</br>"doc": "Land surface topographic elevation",</br>}</br></br>"topographic__steepest_slope": </br>{</br>"dtype": float,</br>"intent": "in",</br>"optional": False,</br>"units": "-",</br>"mapping": "node",</br>"doc": "The steepest *downhill* slope",</br>}
"doc": "The steepest *downhill* slope",
}
Only maintenance +
2,020 +
This module implements sediment flux depen … This module implements sediment flux dependent channel incision following::</br></br>E = f(Qs, Qc) * ((a stream power-like term) - (an optional threshold)),</br></br>where E is the bed erosion rate, Qs is the volumetric sediment flux into a node, and Qc is the volumetric sediment transport capacity at that node.</br></br>This component is under active research and development; proceed with its use at your own risk.nt; proceed with its use at your own risk. +
Daniel +
Has query"Has query" is a predefined property that represents meta information (in form of a <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
ASCII +
Last editor is"Last editor is" is a predefined property that contains the page name of the user who created the last revision and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
0 +
Terrestrial +
LandLab +
theory +, compute +, tools +, cover +, volumetric sediment flux +, volumetric sediment transport +, stream power-like term +, bed erosion rate +, implements sediment flux +, sediment flux dependent +, module implements sediment +, sediment transport capacity +, flux dependent channel +, dependent channel incision +, volumetric sediment +, sediment flux +, power-like term +, optional threshold +, erosion rate +, stream power +, erosion +, tools and cover + and seddeperoder +
As code +
https://github.com/landlab/landlab/issues +
Single +
https://landlab.github.io +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
02:17:08, 17 September 2020 +
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Compute fluvial erosion using using “tools and cover” theory +
ASCII +
80309 +
false +
false +
Processing error"Processing error" is a predefined property provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> and represents errors that appeared in connection with improper value annotations or input processing.
BSD or MIT X11 +
Python +
Through web repository +
https://github.com/landlab/landlab/tree/master/landlab +
2014 +
