Model:Hilltop and hillslope morphology extraction

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Hilltop and hillslope morphology extraction

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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, Reach-Scale Model domain One-line model description Tools for extracting hilltops and analysing hillslope morphology Extended model description [[Extended model description::A series of tools for extracting a network of hilltops from a landscape, computing curvature, slope and aspect over variable length scales from high resolution topography and performing hillslope traces from hilltops to valley bottoms to sample hilltop curvature, mean hillslope gradient and hillslope length. See Hurst et al. [2012] for full description.]] Keywords: topographic analysis, Name Martin Hurst Type of contact Model developer Institute / Organization British Geological Survevy Postal address 1 Nicker Hill Postal address 2 Keyworth Town / City Nottingham Postal code NG12 6DA State NO STATE Country United Kingdom Email address mhurst@bgs.ac.uk Phone +44 1159 363103 Fax Supported platforms Unix, Linux, Windows Other platform Programming language C++, Python Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2010 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/hilltop_and_hillslope_morphology_extraction Program license type GPL v3 Program license type other Memory requirements Dependent on DEM size Typical run time Days-Weeks! Describe input parameters See included readme Input format Other input format Describe output parameters See included readme Output format Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? Yes If above answer is yes ESRI Other visualization software Describe processes represented by the model [[Describe processes::The module can be split into three processes. First computing topographic curvature (laplacian), slope and aspect from a gridded DEM over variable length scales to reduce local scale noise below the scale of interest (e.g. vegetation, boulders/rubble) (see Hurst et al. [2012] for further justification). Secondly, extraction of a network of hilltops as the intersecting margins of adjoining drainage basins at all stream orders through hydrological analysis of the DEM. Third, the use of the hilltop network to extract the spatial distribution of hillslope properties (hilltop curvature, mean hillslope gradient and hillslope length) by aspect driven steepest-descent tracing.]] Describe key physical parameters and equations Describe length scale and resolution constraints Requires high resolution (1 m LiDAR) topographic data. Describe time scale and resolution constraints Describe any numerical limitations and issues Dpeending on the size of the DEM this can be quite a slow process, particularly the third step. Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets Db_dem.zip Upload test data sets if available: Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? This code has been subsumed into a topographic analysis package being developed with Simon Mudd at the University of Edinburgh which may be available at a future date. 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 No not possible 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 Martin Hurst Source code View in CSDMS GitHub repository Model citations Nr. of publications: 1 Total citations: 70 h-index: 1 m-quotient: 0.08 QR-code Link to this page Other models by author 1D Hillslope MCMC Hilltop and hillslope morphology extraction Non Local Means Filtering

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