https://csdms.colorado.edu/csdms_wiki/api.php?action=feedcontributions&feedformat=atom&user=Sgrieve 2026-04-10T10:51:56Z User contributions MediaWiki 1.44.2 https://csdms.colorado.edu/csdms_wiki/index.php?title=Model:Hilltop_flow_routing&diff=85948 2015-06-08T10:57:37Z

<p>Sgrieve: Created page with &quot;{{Model identity |Model also known as=Hillslope length measurement tool |Model type=Tool }} {{Start models incorporated}} {{End a table}} {{Model identity2 |Categories=Model d...&quot;</p> <hr /> <div>{{Model identity<br /> |Model also known as=Hillslope length measurement tool<br /> |Model type=Tool<br /> }}<br /> {{Start models incorporated}}<br /> {{End a table}}<br /> {{Model identity2<br /> |Categories=Model domain, Terrestrial<br /> |Spatial dimensions=2D<br /> |Spatialscale=Landscape-Scale<br /> |One-line model description=Algorithm for directly measuring hillslope length from high resolution topographic data<br /> |Extended model description=This tool produces a flow path for each hilltop pixel on a landscape, generating hillslope length and relief data at a hillslope scale. These data can be used to discriminate between linear and nonlinear sediment flux laws at a landscape scale.<br /> <br /> The model requires an input DEM in float format and produces a series raster and plain text output files which can be visualized and analysed using code provided at: https://github.com/sgrieve/LH_Paper_Plotting<br /> <br /> For detailed information about how to use this tool please refer to the documentation (http://www.geos.ed.ac.uk/~smudd/LSDTT_docs/html/basin_metrics.html).<br /> }}<br /> {{Start model keyword table}}<br /> {{Model keywords<br /> |Model keywords=geomorphology<br /> }}<br /> {{Model keywords<br /> |Model keywords=Hillslope Model<br /> }}<br /> {{Model keywords<br /> |Model keywords=Sediment flux<br /> }}<br /> {{Model keywords<br /> |Model keywords=flow path<br /> }}<br /> {{End a table}}<br /> {{Modeler information<br /> |First name=Stuart<br /> |Last name=Grieve<br /> |Type of contact=Model developer<br /> |Institute / Organization=University of Edinburgh<br /> |Postal address 1=Geography Building<br /> |Postal address 2=Drummond Street<br /> |Town / City=Edinburgh<br /> |Postal code=EH8 9XP<br /> |Country=United Kingdom<br /> |Email address=s.grieve@ed.ac.uk<br /> |Phone=+44 (0)131 650 9170<br /> }}<br /> {{Additional modeler information<br /> |Additional first name=Simon<br /> |Additional last name=Mudd<br /> |Additional type of contact=Model developer<br /> |Additional institute / Organization=University of Edinburgh<br /> |Additional postal address 1=Geography Building<br /> |Additional postal address 2=Drummond Street<br /> |Additional town / City=Edinburgh<br /> |Additional postal code=EH8 9XP<br /> |Additional country=United Kingdom<br /> |Additional email address=simon.m.mudd@ed.ac.uk<br /> |Additional phone=+44 (0)131 651 9090<br /> }}<br /> {{Additional modeler information<br /> |Additional first name=Martin<br /> |Additional last name=Hurst<br /> |Additional type of contact=Model developer<br /> |Additional institute / Organization=British Geological Survey<br /> |Additional postal address 1=Keyworth<br /> |Additional country=United Kingdom<br /> |Additional email address=mhurst@bgs.ac.uk<br /> }}<br /> {{Model technical information<br /> |Supported platforms=Unix, Linux<br /> |Programming language=C++<br /> |Code optimized=Single Processor<br /> |Start year development=2013<br /> |Does model development still take place?=Yes<br /> |Model availability=As code<br /> |Source code availability=Through CSDMS repository<br /> |Program license type=GPL v2<br /> |Memory requirements=Varies depending on the input DEM size<br /> |Typical run time=3 hours to 3 days<br /> }}<br /> {{Input - Output description<br /> |Describe input parameters=The input files are a DEM in .flt format, a channel heads file generated using the DrEICH algorithm (http://csdms.colorado.edu/wiki/Model:DrEICH_algorithm) and an optional floodplain mask in .flt format. Input parameters are also supplied at the command line. Information on the parameters is available in the documentation (http://www.geos.ed.ac.uk/~smudd/LSDTT_docs/html/channel_heads.html).<br /> |Input format=Binary<br /> |Describe output parameters=The output data is both plain text data files and .flt raster files containing the spatial location of the computed results.<br /> |Output format=ASCII, Binary<br /> |Pre-processing software needed?=Yes<br /> |Describe pre-processing software=A channel network must be extracted for the landscape, this is performed using the DrEICH algorithm (http://csdms.colorado.edu/wiki/Model:DrEICH_algorithm).<br /> |Post-processing software needed?=No<br /> |Visualization software needed?=Yes<br /> |If above answer is yes=ESRI<br /> |Other visualization software=All output files can be visualized using the python tools provided at https://github.com/sgrieve/LH_Paper_Plotting and .flt files can be loaded into many GIS packages (ArcGIS, Whitebox, QGIS).<br /> }}<br /> {{Process description model<br /> |Describe processes represented by the model=The module generates hillslope profiles by routing flow from every point on a drainage divide into a channel.<br /> |Describe key physical parameters and equations=The user must select a drainage basin strahler order to use as the basis for generating drainage divides. The larger the value, the fewer profiles will be generated. A value of 2 is recommended in order to generate a large density of data, while ensuring that only true drainage divides are sampled.<br /> <br /> The window size for the surface fitting routine must be defined. The selection of this parameter is performed using an algorithm included in this package which implements a technique for window size selection described by Roering et al. (2010) [http://www.sciencedirect.com/science/article/pii/S0012821X10004784] and Hurst et al. (2012) [http://onlinelibrary.wiley.com/doi/10.1029/2011JF002057/abstract]<br /> |Describe length scale and resolution constraints=This algorithm attempts to measure individual hillslopes, which are can be resolved at a range of spatial scales. It is recommended to use high resolution topographic data (&lt;4 meter resolution) to ensure that a broad range of hillslopes can be sampled.<br /> |Describe time scale and resolution constraints=No time resolution constraints as this software performs topographic analysis.<br /> |Describe any numerical limitations and issues=As the size of the DEM increases, processing time will increase. An 8000*8000 DEM will take several days to process. Documentation is available to help users select appropriate input parameters.<br /> }}<br /> {{Model testing<br /> |Describe available calibration data sets=Topographic analysis; no calibration required.<br /> |Describe available test data sets=Input data used in the preparation of the associated manuscript is all available from www.opentopography.org along with all processing and visualization code at https://github.com/sgrieve/LH_Paper_Plotting so users can compare their results with those contained within the manuscript.<br /> |Describe ideal data for testing=Any 1m resolution digital elevation model.<br /> }}<br /> {{Users groups model<br /> |Do you have current or future plans for collaborating with other researchers?=Yes<br /> }}<br /> {{Documentation model<br /> |Manual model available=No<br /> |Model website if any=http://www.geos.ed.ac.uk/~smudd/LSDTT_docs/html/basin_metrics.html<br /> }}<br /> {{Additional comments model}}<br /> {{CSDMS staff part<br /> |OpenMI compliant=No not possible<br /> |IRF interface=No not possible<br /> |CMT component=Not yet<br /> }}<br /> {{Start coupled table}}<br /> {{End a table}}<br /> {{End headertab}}<br /> &lt;!-- PLEASE USE THE &quot;EDIT WITH FORM&quot; BUTTON TO EDIT ABOVE CONTENTS; CONTINUE TO EDIT BELOW THIS LINE --&gt;<br /> {{#ifexist:Template:{{#sub:{{PAGENAME}}|0|1}}{{#sub:{{lc:{{PAGENAME}}}}|1}} download stats | ==Download statistics==<br /> {{{{#sub:{{PAGENAME}}|0|1}}{{#sub:{{lc:{{PAGENAME}}}}|1}} download stats}} | }}<br /> <br /> ==Introduction==<br /> <br /> == History ==<br /> <br /> == References ==<br /> {{Add_reference_upload_button}}<br /> {{Add_model_references}}<br /> <br /> == Issues ==<br /> <br /> == Help ==<br /> {{#ifexist:Model_help:{{PAGENAME}}|[[Model_help:{{PAGENAME}}]]|}}<br /> <br /> == Input Files ==<br /> <br /> == Output Files ==</div>

Sgrieve https://csdms.colorado.edu/csdms_wiki/index.php?title=User:Sgrieve&diff=85937 2015-06-04T15:02:13Z

<p>Sgrieve: </p> <hr /> <div>{{Signup information member<br /> |First name member=Stuart<br /> |Last name member=Grieve<br /> |Institute member=University of Edinburgh<br /> |Department member=School of Geosciences<br /> |Postal address 1 member=Geography Building<br /> |City member=Edinburgh<br /> |Postal code member=EH8 9XP<br /> |Country member=United Kingdom<br /> |Confirm email member=s.grieve@ed.ac.uk<br /> |Work phone member=(+44) 131 650 9170<br /> |Website member=http://www.geos.ed.ac.uk/homes/s0675405/<br /> |Working group member=Terrestrial Working Group, Hydrology Focus Research Group<br /> |Emaillist group member=yes<br /> }}</div>

Sgrieve https://csdms.colorado.edu/csdms_wiki/index.php?title=User:Sgrieve&diff=85936 2015-06-04T15:00:24Z

<p>Sgrieve: Created page with &quot;{{Signup information member |First name member=Stuart |Last name member=Grieve |Institute member=University of Edinburgh |City member=Edinburgh |Country member=United Kingdom...&quot;</p> <hr /> <div>{{Signup information member<br /> |First name member=Stuart<br /> |Last name member=Grieve<br /> |Institute member=University of Edinburgh<br /> |City member=Edinburgh<br /> |Country member=United Kingdom<br /> |Confirm email member=s.grieve@ed.ac.uk<br /> |Working group member=Terrestrial Working Group<br /> |Emaillist group member=yes<br /> }}</div>

Sgrieve