<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body text="#000000" bgcolor="#ffffff">
Daniel,<br>
<br>
The SRTM data has 90m cell size, while the CDED (from the Geobase
site) has 30m cells (and 1m height resolution) which might rendered
better contours.<br>
<pre class="moz-signature" cols="72">Best Regards,
Brent Fraser</pre>
<br>
On 5/27/2011 11:52 AM, Daniel Begin wrote:
<blockquote cite="mid:SNT103-DS57D599EA770F4BC8FAE1794760@phx.gbl"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<meta name="Generator" content="Microsoft Word 11 (filtered
medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:smarttagtype
namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="country-region">
<o:smarttagtype
namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="State">
<o:smarttagtype
namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="City">
<o:smarttagtype
namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="place">
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--@font-face
{体}
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman";
mso-believe-normal-left:yes;}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.Section1
{page:Section1;}
-->
</style><!--[if mso 9]-->
<style>
p.MsoNormal
{margin-left:7.5pt;}
</style><!--[endif]--><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="Section1">
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;">Bonjour tous le monde,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;">I have generated a 30m and 31m contour
lines for <st1:place w:st="on">Richelieu</st1:place>
river and lake Champlain (using SRTM data). It
fits the 30m contour provided by
Jean-Guilhem but doesn't seem to fit pretty well
the flooded wetland area
provided by <st1:city w:st="on"><st1:place
w:st="on">Pierre</st1:place></st1:city>.<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;">Any idea if this data can be used (usgs
licence point of view)?<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;">And if it can be usefull?<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;">Daniel<o:p></o:p></span></font></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
color="navy" face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial; color:
navy;"><o:p> </o:p></span></font></p>
<div>
<div class="MsoNormal" style="margin: 0cm 0cm
0.0001pt; text-align: center;" align="center"><font
face="Times New Roman" size="3"><span
style="font-size: 12pt;" lang="EN-US">
<hr tabindex="-1" width="100%" align="center"
size="2">
</span></font></div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><b><font
face="Tahoma" size="2"><span style="font-size:
10pt; font-family: Tahoma; font-weight: bold;"
lang="EN-US">From:</span></font></b><font
face="Tahoma" size="2"><span style="font-size:
10pt; font-family: Tahoma;" lang="EN-US"> Pierre
Béland
[<a class="moz-txt-link-freetext" href="mailto:infosbelas-gps@yahoo.fr">mailto:infosbelas-gps@yahoo.fr</a>] <br>
<b><span style="font-weight: bold;">Sent:</span></b>
May-27-11 12:40<br>
<b><span style="font-weight: bold;">To:</span></b>
HOT Openstreetmap<br>
<b><span style="font-weight: bold;">Cc:</span></b>
talk-ca<br>
<b><span style="font-weight: bold;">Subject:</span></b>
Re: [HOT] [Talk-ca]
Flooding in <st1:place w:st="on"><st1:city
w:st="on">Richelieu River</st1:city>, <st1:state
w:st="on">Quebec</st1:state>,<st1:country-region
w:st="on">Canada</st1:country-region></st1:place>
:Follow-up(Complement of information)</span></font><span
lang="EN-US"><o:p></o:p></span></p>
</div>
<p class="MsoNormal"><font face="Times New Roman"
size="3"><span style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">Jean-Guilhem
Cailton wrote on 2011-05-27<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;"><br>
> According to the shapefile data, <st1:place
w:st="on">Lake Champlain</st1:place>,
and hence Venise-en-Québec are above the 30 m
elevation.<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">> The
shapefile contains punctual elevations of 31 m
in this area (Plage Missisquoi,
for example).<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">> The
next contour line would be the 40 m one, but it
does not look like it would be
very useful for this.<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">This is exact.
The 40 meter contour line is not usefull for us.<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;"> <o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">Thanks
Jean-Guilhem.<o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;"> <o:p></o:p></span></font></p>
</div>
<div>
<p class="MsoNormal" style="margin: 0cm 0cm 0.0001pt;"><font
face="Verdana" size="2"><span style="font-size:
10pt; font-family: Verdana;">Pierre Béland<o:p></o:p></span></font></p>
</div>
</div>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Talk-ca mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Talk-ca@openstreetmap.org">Talk-ca@openstreetmap.org</a>
<a class="moz-txt-link-freetext" href="http://lists.openstreetmap.org/listinfo/talk-ca">http://lists.openstreetmap.org/listinfo/talk-ca</a>
</pre>
</o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></blockquote>
</body>
</html>