TAUDEM - D-Infinity Flow Direction

Assigns a flow direction based on the D-infinity flow method using the steepest slope of a triangular facet (Tarboton, 1997, "A New Method for the Determination of Flow Directions and Contributing Areas in Grid Digital Elevation Models," Water Resources Research, 33(2): 309-319).

TAUDEMTerrain AnalysisGrid AnalysisD-Infinity

Contributor(s)
Initial contribute: 2020-12-15

Authorship

  • David Tarboton
    • :  
    UtahState University
    :  
    david.tarboton@usu.edu
    :  
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    ● Method-focused categoriesData-perspectiveGeoinformation analysis

    Detailed Description

    English {{currentDetailLanguage}} English

    Quoted from： https://hydrology.usu.edu/taudem/taudem5/help53/DInfinityFlowDirections.html

        Flow direction is defined as steepest downward slope on planar triangular facets on a block centered grid. Flow direction is encoded as an angle in radians counter-clockwise from east as a continuous (floating point) quantity between 0 and 2 pi. The flow direction angle is determined as the direction of the steepest downward slope on the eight triangular facets formed in a 3 x 3 grid cell window centered on the grid cell of interest. The resulting flow in a grid is then usually interpreted as being proportioned between the two neighboring cells that define the triangular facet with the steepest downward slope.

     

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    David Tarboton (2020). TAUDEM - D-Infinity Flow Direction, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/e59cc885-d9c4-4c08-82f4-3a377a553616
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    Contributor(s)
    Initial contribute : 2020-12-15

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    Authorship

  • David Tarboton
    • :  
    UtahState University
    :  
    david.tarboton@usu.edu
    :  
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    History

    Last modifier: 
    XiaoYu He
    Last modify time: 
    2021-02-24
    Modify times: 
    2  View History

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