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<title>GRASS GIS: r.tsunami</title>
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<h2>NAME</h2>
<em><b>r.tsunami</b></em> - Calculation of flooded area due to tsunami event.
<h2>KEYWORDS</h2>
tsunami, modelling
<h2>SYNOPSIS</h2>
<b>r.tsunami</b><br>
<b>r.tsunami help</b><br>
<b>r.tsunami</b> <b>dtm</b>=<em>string</em> <b>rough</b>=<em>string</em> <b>size</b>=<em>value</em> <b>h</b>=<em>value</em> <b>ho</b>=<em>value</em>
<b>Ho</b>=<em>value</em> [<b>runup</b>=<em>string</em>] <b>flood</b>=<em>string</em> <b>hflood</b>=<em>string</em> <b>x</b>=<em>value</em> <b>y</b>=<em>value</em> [--<b>overwrite</b>] [--<b>verbose</b>] [--<b>quiet</b>]
<h3>Flags:</h3>
<DL>
<DT><b>-m</b></DT>
<DD>Runup values [m]</DD>
<DT><b>-a</b></DT>
<DD>Calculation of total flooded area [mq]</DD>
<DT><b>-i</b></DT>
<DD>Flood height values [m]</DD>
<DT><b>--overwrite</b></DT>
<DD>Allow output files to overwrite existing files</DD>
<DT><b>--verbose</b></DT>
<DD>Verbose module output</DD>
<DT><b>--quiet</b></DT>
<DD>Quiet module output</DD>
</DL>
<h3>Parameters:</h3>
<DL>
<DT><b>dtm</b>=<em>string</em></DT>
<DD>Digital terrain model raster map name</DD>
<DT><b>rough</b>=<em>string</em></DT>
<DD>Roughness raster map name</DD>
<DT><b>size</b>=<em>value</em></DT>
<DD>Size of the neighborhood [-]</DD>
<DD>Options: <em> 1,3,5,7,9,11,13,15,17,19,21,23,25</em></DD>
<DD>Default: <em>3</em></DD>
<DT><b>h</b>=<em>value</em></DT>
<DD> Sea depth at coastline [m]</DD>
<DT><b>ho</b>=<em>value</em></DT>
<DD>Sea depth at source point [m]</DD>
<DT><b>Ho</b>=<em>value</em></DT>
<DD>Wave height at source point [m]</DD>
<DT><b>runup</b>=<em>string</em></DT>
<DD>Output runup map name</DD>
<DT><b>flood</b>=<em>string</em></DT>
<DD>Output flooded area map name</DD>
<DT><b>hflood</b>=<em>string</em></DT>
<DD>Output flood height map name</DD>
<DT><b>x</b>=<em>value</em></DT>
<DD>X coordinate (sea point)</DD>
<DT><b>y</b>=<em>value</em></DT>
<DD>Y coordinate (sea point)</DD>
</DL>
<h2>DESCRIPTION</h2>
<em>r.tsunami</em> allow to assess the maximum vertical height
of the tsunami wave at the coast (run-up) and the subsequent
inundation on the mainland.The procedure takes into account local
morphological characteristics,vegetation and urbanization
through the usage of digital terrain model and roughness raster
maps.
<h2>NOTES</h2>
The digital terrain model raster map must contain null values at sea level.
<p>
<p>
<h2>AUTHORS</h2>
M.Molinari, M. Cannata (Earth Science Institute, http://istgeo.ist.supsi.ch).
Implementation of the base method developed by B. Federici.
<h2>REFERENCES</h2>
<ul>
<li>Federici, B & Cosso, T, 2006, 'Tsunami inundation maps and damage sceneries through the GIS GRASS',<a href="http://www.foss4g2006.org">
proceedings of FOSS4G2006 </a>, Lausanne, Switzerland, viewed 13 August 2008. </li>
<li>Cannata M., Federici B., Molinari M., - "Carte di inondazione dovute a tsunami mediante il GIS GRASS: applicazione all'isola di St. Lucia, Caraibi",proceedings of <a href ="http://gislab.dirap.unipa.it/grass_meeting/index.htm">VIII Italian GRASS user meeting</a>, Palermo, Italy, viewed 13 August 2008. </li>
</ul>
<p><i>Last changed: $Date: 2008-05-16 12:09:06 -0700 (Fri, 16 May 2008) $</i>
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