<div dir="ltr">Hi Johannes,<div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Jun 18, 2013 at 1:52 PM, Johannes Radinger <span dir="ltr"><<a href="mailto:johannesradinger@gmail.com" target="_blank">johannesradinger@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hi,<br><br></div>I found following interesting Brasilian program called HydroFlow:<br>
<a href="http://www.fgel.uerj.br/labgis/hydroflow/en/downloads_ingles.html" target="_blank">http://www.fgel.uerj.br/labgis/hydroflow/en/downloads_ingles.html</a><br>
<br></div>This tools calculates the Stream order (e.g. Strahler, Shreve)<br></div>based on a shapefile input of the river network and a shapefile that defines<br>the border (catchment?). If I am informed correctly such a tool that does<br>
not require any form of a DEM (or accumulation map etc.) is not existing for<br></div>GRASS yet.<br></div></div></blockquote><div><br></div><div style>there is v.strahler</div><div style><a href="http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#v.strahler">http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#v.strahler</a></div>
<div style>that calculates the Strahler order. I'm not aware of its status though, I remember some issues reported in ML but I didn't keep myself updated.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr"><div><br></div><div>There are just two questions that appeared to me:<br><br></div><div>1) Has anyone installed and tried the programm already in Ubuntu/Linux?<br>
<br></div><div>2) The tool is licensed as open source. So, could such a algorithm also be implemented as <br></div><div>a add-on to GRASS? I am not sure but I can imagine that this might be of interest also to<br></div><div>
other GRASS users!?</div></div></blockquote><div><br></div><div style>Nice idea! Did you try it yourself? How's the outcome?</div><div style><br></div><div style>cheers,</div><div style>madi </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr"><div><span class=""><font color="#888888"><br></font></span></div><span class=""><font color="#888888"><div><br></div><div>/johannes<br></div></font></span></div>
<br>_______________________________________________<br>
grass-user mailing list<br>
<a href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/grass-user" target="_blank">http://lists.osgeo.org/mailman/listinfo/grass-user</a><br>
<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div><font color="#666666">Best regards,</font></div><div><font color="#666666"><br></font></div><div><font color="#666666">Margherita DI LEO </font></div>
<div><font color="#666666">Postdoctoral Researcher</font></div><div><font color="#666666"><br></font></div><div><font color="#666666">European Commission - DG JRC </font></div><div><font color="#666666">Institute for Environment and Sustainability (IES)</font></div>
<div><font color="#666666">Via Fermi, 2749</font></div><div><font color="#666666">I-21027 Ispra (VA) - Italy - TP 261</font></div><div><font color="#666666"> </font></div><div><font color="#666666">Tel. +39 0332 78 3600 </font></div>
<div><font color="#666666"><a href="mailto:margherita.di-leo@jrc.ec.europa.eu" target="_blank">margherita.di-leo@jrc.ec.europa.eu</a></font></div><div><font color="#666666"><br></font></div><div><font color="#666666">Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission.</font></div>
</div>
</div></div>