<div dir="ltr">Thanks to Markus and Ivan for the help-- I'll answer this on the forum in case others have the same problem in the future.<div><br></div><div>For the record, I am using GRASS 6.4.4 on Mac OS 10.9.5.</div><div><br></div><div>The problem was that though I ran r.fill.dir once, there were still sinks in my DEM. After running r.fill.dir 5 total times, I removed all of the sinks in the DEM and r.drain worked well.</div><div><br></div><div>Thanks for indulging a new user!</div><div><br></div><div>Charlie</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 28, 2014 at 11:52 AM, Ivan Marchesini <span dir="ltr"><<a href="mailto:ivan.marchesini@gmail.com" target="_blank">ivan.marchesini@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hi, <br>
could be that the dtm is not really/completelly filled. Please try to verify the elevations of the dtm cells surrounding the one where the drain stops. <br>
Best</p><div class="HOEnZb"><div class="h5">
<div class="gmail_quote">On 28 Oct 2014 17:19, "cmshobe" <<a href="mailto:charles.shobe@colorado.edu" target="_blank">charles.shobe@colorado.edu</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all,<br>
<br>
I am using r.drain with an elevation raster as input. I filled the elevation<br>
raster using r.fill.dir. When I run r.drain, it only creates a short path<br>
segment before finishing the analysis, even though it hasn't come close to<br>
the region border. There should not be any sinks in my elevation raster<br>
because I filled it. Does anyone have any experience with this problem?<br>
<br>
Thanks!<br>
<br>
Charlie<br>
<br>
<br>
<br>
--<br>
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