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	<id>https://csdms.colorado.edu/csdms_wiki/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=DTMilodowski</id>
	<title>CSDMS - User contributions [en]</title>
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	<updated>2026-04-28T15:35:55Z</updated>
	<subtitle>User contributions</subtitle>
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	<entry>
		<id>https://csdms.colorado.edu/csdms_wiki/index.php?title=Model:SurfaceRoughness&amp;diff=84083</id>
		<title>Model:SurfaceRoughness</title>
		<link rel="alternate" type="text/html" href="https://csdms.colorado.edu/csdms_wiki/index.php?title=Model:SurfaceRoughness&amp;diff=84083"/>
		<updated>2015-03-11T14:29:43Z</updated>

		<summary type="html">&lt;p&gt;DTMilodowski: Created page with &amp;quot;{{Model identity |Model type=Tool }} {{Start models incorporated}} {{End a table}} {{Model identity2 |Spatial dimensions=2D |One-line model description=Quantifies surface roug...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{Model identity&lt;br /&gt;
|Model type=Tool&lt;br /&gt;
}}&lt;br /&gt;
{{Start models incorporated}}&lt;br /&gt;
{{End a table}}&lt;br /&gt;
{{Model identity2&lt;br /&gt;
|Spatial dimensions=2D&lt;br /&gt;
|One-line model description=Quantifies surface roughness with high-resolution topographic data by analyzing the local variability of surface normal vectors.&lt;br /&gt;
|Extended model description=This tool can be used to map out areas of hillslopes where the emergence of bedrock drives an increase in surface roughness.  The tool requires an input DEM in float format and will output the rasters, also in float format, for three eigenvectors that together describe the distribution of normal vectors within a user-defined neighbourhood for each pixel.  To view the paper, please see: &amp;lt;url&amp;gt;&lt;br /&gt;
}}&lt;br /&gt;
{{Start model keyword table}}&lt;br /&gt;
{{Model keywords&lt;br /&gt;
|Model keywords=Rock Exposure&lt;br /&gt;
}}&lt;br /&gt;
{{Model keywords&lt;br /&gt;
|Model keywords=Surface Roughness&lt;br /&gt;
}}&lt;br /&gt;
{{Model keywords&lt;br /&gt;
|Model keywords=LiDAR&lt;br /&gt;
}}&lt;br /&gt;
{{End a table}}&lt;br /&gt;
{{Modeler information&lt;br /&gt;
|First name=David&lt;br /&gt;
|Last name=Milodowski&lt;br /&gt;
|Type of contact=Model developer&lt;br /&gt;
|Institute / Organization=University of Edinburgh, School of GeoSciences&lt;br /&gt;
|Postal address 1=Geography Building&lt;br /&gt;
|Postal address 2=Drummond Street&lt;br /&gt;
|Town / City=Edinburgh&lt;br /&gt;
|Postal code=EH8 9XP&lt;br /&gt;
|Country=United Kingdom&lt;br /&gt;
|Email address=d.t.milodowski@ed.ac.uk&lt;br /&gt;
}}&lt;br /&gt;
{{Additional modeler information&lt;br /&gt;
|Additional first name=Simon&lt;br /&gt;
|Additional last name=Mudd&lt;br /&gt;
|Additional type of contact=Model developer&lt;br /&gt;
|Additional institute / Organization=University of Edinburgh, School of GeoSciences&lt;br /&gt;
|Additional postal address 1=Geography Building&lt;br /&gt;
|Additional postal address 2=Drummond Street&lt;br /&gt;
|Additional town / City=Edinburgh&lt;br /&gt;
|Additional postal code=EH8 9XP&lt;br /&gt;
|Additional country=United Kingdom&lt;br /&gt;
|Additional email address=simon.m.mudd@ed.ac.uk&lt;br /&gt;
}}&lt;br /&gt;
{{Model technical information&lt;br /&gt;
|Supported platforms=Linux&lt;br /&gt;
|Programming language=C++&lt;br /&gt;
|Code optimized=Single Processor&lt;br /&gt;
|Start year development=2012&lt;br /&gt;
|Does model development still take place?=Yes&lt;br /&gt;
|Model availability=As code&lt;br /&gt;
|Source code availability=Through CSDMS repository&lt;br /&gt;
|Program license type=GPL v2&lt;br /&gt;
|Memory requirements=Memory requirements dependent on size of DEM&lt;br /&gt;
|Typical run time=1-30 minutes&lt;br /&gt;
}}&lt;br /&gt;
{{Input - Output description&lt;br /&gt;
|Describe input parameters=The input file is a DEM in .flt format. A driver text file is also required which contains the parameters used for the extraction.&lt;br /&gt;
|Other input format=float&lt;br /&gt;
|Pre-processing software needed?=No&lt;br /&gt;
|Post-processing software needed?=No&lt;br /&gt;
|Visualization software needed?=No&lt;br /&gt;
}}&lt;br /&gt;
{{Process description model&lt;br /&gt;
|Describe processes represented by the model=This tool maps out local surface roughness based on the neighborhood distribution of surface normal vectors.  As sediment transport processes in soil mantled landscapes tend to be diffusive, the emergence of bedrock drives an increase in surface roughness that is mapped out by this algorithm.&lt;br /&gt;
|Describe key physical parameters and equations=The surface normal vector for a given pixel are defined by fitting a 6-term polynomial surface to a set of DEM points within a user-specified radius of that pixel.  A second user-defined neighborhood is used to then map out the local variability in the orientation of the surface normal vectors.&lt;br /&gt;
|Describe length scale and resolution constraints=A requirement is high resolution topographic data, typically ~1m resolution.  For a detailed discussion of lengthscale and resolution constraints we urge the user to refer to the original manuscript&lt;br /&gt;
|Describe time scale and resolution constraints=No time resolution constraints as this software performs topographic analysis.&lt;br /&gt;
}}&lt;br /&gt;
{{Model testing&lt;br /&gt;
|Describe available test data sets=Two test DEMs are included in the repository, alongside their respective driver files.  These are used in the original manuscript.&lt;br /&gt;
|Describe ideal data for testing=Any 1m resolution bare earth digital elevation model will do.&lt;br /&gt;
}}&lt;br /&gt;
{{Users groups model&lt;br /&gt;
|Do you have current or future plans for collaborating with other researchers?=Yes&lt;br /&gt;
}}&lt;br /&gt;
{{Documentation model&lt;br /&gt;
|Manual model available=No&lt;br /&gt;
}}&lt;br /&gt;
{{Additional comments model}}&lt;br /&gt;
{{CSDMS staff part&lt;br /&gt;
|OpenMI compliant=No not possible&lt;br /&gt;
|IRF interface=No not possible&lt;br /&gt;
|CMT component=Not yet&lt;br /&gt;
}}&lt;br /&gt;
{{Start coupled table}}&lt;br /&gt;
{{End a table}}&lt;br /&gt;
{{End headertab}}&lt;br /&gt;
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==Introduction==&lt;br /&gt;
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== History ==&lt;br /&gt;
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== References  ==&lt;br /&gt;
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== Issues ==&lt;br /&gt;
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== Help ==&lt;br /&gt;
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== Input Files ==&lt;br /&gt;
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== Output Files ==&lt;/div&gt;</summary>
		<author><name>DTMilodowski</name></author>
	</entry>
	<entry>
		<id>https://csdms.colorado.edu/csdms_wiki/index.php?title=User:DTMilodowski&amp;diff=84082</id>
		<title>User:DTMilodowski</title>
		<link rel="alternate" type="text/html" href="https://csdms.colorado.edu/csdms_wiki/index.php?title=User:DTMilodowski&amp;diff=84082"/>
		<updated>2015-03-11T13:51:33Z</updated>

		<summary type="html">&lt;p&gt;DTMilodowski: Created page with &amp;quot;{{Signup information member |First name member=David |Last name member=Milodowski |Institute member=University of Edinburgh |Department member=School of GeoSciences |City memb...&amp;quot;&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{Signup information member&lt;br /&gt;
|First name member=David&lt;br /&gt;
|Last name member=Milodowski&lt;br /&gt;
|Institute member=University of Edinburgh&lt;br /&gt;
|Department member=School of GeoSciences&lt;br /&gt;
|City member=Edinburgh&lt;br /&gt;
|Country member=United Kingdom&lt;br /&gt;
|Confirm email member=d.t.milodowski@ed.ac.uk&lt;br /&gt;
|Working group member=Terrestrial Working Group, Critical Zone Focus Research Group, Ecosystem Dynamics Focus Research Group&lt;br /&gt;
|Emaillist group member=yes&lt;br /&gt;
}}&lt;/div&gt;</summary>
		<author><name>DTMilodowski</name></author>
	</entry>
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