Model:FlowDirectorMFD

FlowDirectorMFD

Metadata

Also known as
Model type	Tool
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, Reach-Scale
Model domain	Terrestrial, Hydrology
One-line model description	Multiple-path flow direction with or without out diagonals.
Extended model description	Directs flow by the multiple flow direction method. Each node is assigned multiple flow directions, toward all of the N neighboring nodes that are lower than it. If none of the neighboring nodes are lower, the location is identified as a pit. Flow proportions can be calculated as proportional to slope or proportional to the square root of slope, which is the solution to a steady kinematic wave.

Keywords:	flow path, flow director,

Name	Katy Barnhart
Type of contact
Institute / Organization
Postal address 1
Postal address 2
Town / City	Boulder
Postal code	80309
State	Colorado
Country	United States
Email address	katherine.barnhart@colorado.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	2017
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	elev : array_like Elevations at nodes. neighbors_at_node : array_like (num nodes, max neighbors at node) For each node, the link IDs of active links. links_at_node : array_like (num nodes, max neighbors at node) link_dir_at_node: array_like (num nodes, max neighbors at node) IDs of the head node for each link. link_slope : array_like slope of each link, defined POSITIVE DOWNHILL (i.e., a negative value means the link runs uphill from the fromnode to the tonode). baselevel_nodes : array_like, optional IDs of open boundary (baselevel) nodes. partition_method: string, optional Method for partitioning flow. Options include 'slope' (default) and 'square_root_of_slope'.
Input format	ASCII
Other input format
Describe output parameters	receivers : ndarray of size (num nodes, max neighbors at node) For each node, the IDs of the nodes that receive its flow. For nodes that do not direct flow to all neighbors, BAD_INDEX_VALUE is given as a placeholder. The ID of the node itself is given if no other receiver is assigned. proportions : ndarray of size (num nodes, max neighbors at node) For each receiver, the proportion of flow (between 0 and 1) is given. A proportion of zero indicates that the link does not have flow along it. slopes: ndarray of size (num nodes, max neighbors at node) For each node in the array ``recievers``, the slope value (positive downhill) in the direction of flow. If no flow occurs (value of ``recievers`` is -1), then this array is set to 0. steepest_slope : ndarray The slope value (positive downhill) in the direction of flow. steepest_receiver : ndarray For each node, the node ID of the node connected by the steepest link. BAD_INDEX_VALUE is given if no flow emmanates from the node. sink : ndarray IDs of nodes that are flow sinks (they are their own receivers) receiver_links : ndarray of size (num nodes, max neighbors at node) ID of links that leads from each node to its receiver, or BAD_INDEX_VALUE if no flow occurs on this link. steepest_link : ndarray For each node, the link ID of the steepest link. BAD_INDEX_VALUE is given if no flow emanates from the node.
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
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	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.
Is this a data component

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Model info

Authors

Katy Barnhart

Source code

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