Model:GISKnickFinder

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GISKnickFinder

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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 Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Watershed-Scale Model domain One-line model description This python code can be used to find knickpoints and extract information about streams, it utilizes built-in functions of ArcGIS. Extended model description This is a tool that I created to help find knickpoints based on the curvature of a landscape. It provides information about a stream including, knickpoint locations, Elevation/distance that can be used to create longitudinal profiles, XYvalues of all the cells in a stream path, etc. The tool uses built-in tools for ArcGIS 10.x (so you must run this on a machine with ArcGIS 10.x installed), but it is written in python. I used it with a 1m LiDAR DEM, so I'm not totally sure how well it will pick out knickpoints on coarser gridded DEMs. Keywords: ArcGIS, Name Francis Rengers Type of contact Model developer Institute / Organization University of Colorado Postal address 1 2200 Colorado Ave. Postal address 2 UCB 399 Town / City Boulder Postal code 80309 State Colorado Country US"US" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property. Email address francis.rengers@colorado.edu Phone Fax Supported platforms 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 2012 Does model development still take place? No If above answer is no, provide end year model development 2012 Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Through CSDMS repository Source web address Source csdms web address https://github.com/csdms-contrib/gisknickfinder Program license type GPL v2 Program license type other Memory requirements Typical run time Describe input parameters You need a DEM, a watershed outline (shapefile), and a point shapefile identifying the top of the streams you are interested in. You also need to input a curvature threshold value and a drainage area threshold value. The curvature threshold is the key to identifying knickpoints (if it is too low you will not see very many knicks, and if it is too high you will identify too many). The drainage area threshold is used to exclude knickpoints that are not in the main channel you are interested in. Input format Other input format ArcGIS shapefile and Raster Describe output parameters Output format Other output format Python list Pre-processing software needed? Yes 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 This tool is used to identify knickpoints using a drainage area threshold and a curvature threshold value Describe key physical parameters and equations Describe length scale and resolution constraints This code currently only works on a single watershed. 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? No Is there a manual available? No Upload manual if available: Model website if any Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant No not possible 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 Is this a data component Can be coupled with:

Model info Authors Francis Rengers Source code View in CSDMS GitHub repository 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 GISKnickFinder GullyErosionProfiler1D SoilInfiltrationGreenAmpt

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