Model:FlowDirectorSteepest

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FlowDirectorSteepest

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Tool Model part of larger framework LandLab 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 Single-path (steepest direction) flow direction without diagonals. Extended model description This components finds the steepest single-path steepest descent flow directions. It is equivalent to D4 method in the special case of a raster grid in that it does not consider diagonal links between nodes. For that capability, use FlowDirectorD8. 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 grid : ModelGrid A grid. surface : field name at node or array of length node, optional The surface to direct flow across, default is field at node: topographic__elevation. Input format ASCII, Binary Other input format Describe output parameters "flow__link_direction": { "dtype": np.int8, "intent": "out", "optional": False, "units": "-", "mapping": "link", "doc": "Direction of flow on link. A value of -1 indicates that water flow goes from head node to tail node, while a value of 1 indicates that water flow goes from tail node to head node.", } "flow__link_to_receiver_node": { "dtype": int, "intent": "out", "optional": False, "units": "-", "mapping": "node", "doc": "ID of link downstream of each node, which carries the discharge", } "flow__receiver_node": { "dtype": int, "intent": "out", "optional": False, "units": "-", "mapping": "node", "doc": "Node array of receivers (node that receives flow from current node)", } "flow__sink_flag": { "dtype": bool, "intent": "out", "optional": False, "units": "-", "mapping": "node", "doc": "Boolean array, True at local lows", } "topographic__elevation": { "dtype": float, "intent": "in", "optional": True, "units": "m", "mapping": "node", "doc": "Land surface topographic elevation", } "topographic__steepest_slope": { "dtype": float, "intent": "out", "optional": False, "units": "-", "mapping": "node", "doc": "The steepest *downhill* slope", } 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 This part will be filled out by CSDMS staff 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 Can be coupled with:

Model info Authors Katy Barnhart Source code Go to external source code site Model citations Nr. of publications: -- Total citations: 0 h-index: --"--" is not a number. m-quotient: 0 QR-code Link to this page Other models by author ChannelProfiler FlowAccumulator FlowDirectorD8 FlowDirectorDinf FlowDirectorMFD FlowDirectorSteepest HackCalculator Lithology NormalFault Terrainbento

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