<br><br><div class="gmail_quote">On Tue, Apr 13, 2010 at 10:59 AM, Steve Hill <span dir="ltr"><<a href="mailto:steve@nexusuk.org">steve@nexusuk.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
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I don't think the SRTM contours are accurate enough to use for tracing<br>
bodies of water - you need to walk the perimeter with a GPS or use aeriel<br>
photos. <br></blockquote></div><br>They aren't. There's also another source called SRTM Water Body dataset (<a href="http://www.kcl.ac.uk/schools/sspp/geography/research/emm/geodata/landandwater.html">http://www.kcl.ac.uk/schools/sspp/geography/research/emm/geodata/landandwater.html</a>) but they both are fairly inaccurate.<br>
<br>Regards,<br>Igor<br>