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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>.
05:07:21, 26 January 2018 +
The model is tested against the known analytical solution (see Adams et al., 2017 for more details). It is unit-tested against this analytical solution every time Landlab is updated. +
This component operates on a Landlab Raste … This component operates on a Landlab RasterModelGrid instance, and requires that the user has downloaded and installed Landlab. Parameters listed below are required. Ones noted as (optional) will revert to the prescribed default values as described in the documentation. </br></br>Input parameters include:</br></br>grid : A Landlab RasterModelGrid, representing the topography</br>h_init : (optional) Thickness of initial thin layer of water on the surface</br>alpha : (optional) Time step coeffcient, described in Bates et al., 2010 and de Almeida et al., 2012.</br>mannings_n : (optional) Manning's roughness coefficient.</br>g : (optional) Acceleration due to gravity (m/s^2).</br>theta : (optional) Weighting factor from de Almeida et al., 2012.</br>rainfall_intensity : (optional) Rainfall intensity.ntensity : (optional) Rainfall intensity. +
The key algorithms and parameters are described in length the Geoscientific Model Development paper by Adams et al., (2017). +
The model works best at watershed-scale domains, 100 km^2 and less have been tested. Of course, this is highly dependent on the grid resolution. +
The Landlab OverlandFlow component outputs … The Landlab OverlandFlow component outputs data as Landlab fields - numpy arrays containing data with the associated CSDMS standard name, listed below:</br></br>'surface_water__depth' : NumPy array of length nnodes. Water depths at a given time step.</br>'surface_water__discharge' : NumPy array of length nlinks. Water discharge values at a given time step.</br>'water_surface__gradient' : NumPy array of length nlinks. Water surface gradient at a given time step.ter surface gradient at a given time step. +
Routes a hydrograph (changing water discharges through time) across a gridded model terrain. At each location, water discharge is calculated at each time step as a function of surface roughness, local water depths and water surface slopes. +
The model works best for event to decadal time scales on a personal machine. +
Only maintenance +
The Landlab OverlandFlow component is base … The Landlab OverlandFlow component is based on a simplified inertial approximation of the shallow water equations, following the solution of de Almeida et al. (2012). This explicit two-dimensional hydrodynamic algorithm simulates a flood wave across a model domain, where water discharge and flow depth are calculated at all locations within a structured (raster) grid. This component generates a hydrograph at all grid locations, and allows for flow to move in one of the four cardinal directions (D4) into/out of a given model node.tions (D4) into/out of a given model node. +
Jordan +
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>.
0.11 +
variable +
LandLab +
Landlab OverlandFlow component +
almeida +, component +, numerical +, algorithm +, simplified inertial approximation +, landlab overlandflow component +, shallow water equations +, landlab overlandflow +, simplified inertial +, inertial approximation +, water equations +, shallow water +, overlandflow component +, landlab +, equations +, component is based +, overlandflow + and based +
Media:OverlandFlow Users Manual.pdf +
Single +
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>.
02:13:54, 17 September 2020 +
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Component simulating overland flow using a 2-D numerical approximation of the shallow-water equations following the de Almeida et al., 2012 algorithm for storage-cell inundation modeling. +
80301 +
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BSD or MIT X11 +
Python +
variable +
Through web repository +
https://github.com/landlab/landlab/tree/master/landlab/components/overland_flow +
2012 +
Model developer +
