<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
    <title></title>
  </head>
  <body text="#000000" bgcolor="#ffffff">
    Hi,<br>
    <br>
    Great find Daniel !<br>
    <br>
    To use directly the GeoTiff images in JOSM, you could try the
    ImportImagePlugin, but I haven't tried it.<br>
    <br>
    I put the EO1-ALI images from Earth Observatory online, in WMS and
    TMS, with the coordinates included in the GeoTiff files. <br>
    <br>
    Apparently, they were not georeferenced in relation to ground
    control points, but with the imagery layer shift option included in
    Josm, it is not too difficult to align them to existing data. For
    example, a shift of "197; -514" quickly adjusted over
    Venise-en-Québec seems to give a reasonable alignment in other areas
    of the images too.<br>
    <br>
    We could try to improve the georeferencing of the original images
    with ground control points, but for now it seems that having a try
    at mapping the flood extent with the current setup has higher
    priority. Let me know if you think more work on georeferencing would
    be useful.<br>
    <br>
    <br>
    URLs:<br>
    <br>
    For the natural color image in TMS (recommended over WMS), use the
    following link in Josm:<br>
tms:<a class="moz-txt-link-freetext" href="http://osm.arkemie.org/cgi-bin/tiles/1.0.0/hautrichelieu_coulnat/">http://osm.arkemie.org/cgi-bin/tiles/1.0.0/hautrichelieu_coulnat/</a>{zoom}/{x}/{y}.jpg<br>
    <br>
    For the shortwave infrared image in TMS:<br>
tms:<a class="moz-txt-link-freetext" href="http://osm.arkemie.org/cgi-bin/tiles/1.0.0/hautrichelieu_swir/">http://osm.arkemie.org/cgi-bin/tiles/1.0.0/hautrichelieu_swir/</a>{zoom}/{x}/{y}.jpg<br>
    <br>
    <br>
    The base WMS URL is : <br>
<a class="moz-txt-link-freetext" href="http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map">http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map</a><br>
    <br>
    Thus, for the natural color image in WMS, use the following link in
    Josm:<br>
wms:<a class="moz-txt-link-freetext" href="http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map&FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=hautrichelieu20110508_natcol&">http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map&FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=hautrichelieu20110508_natcol&</a><br>
    <br>
    For the shortwave infrared image in WMS:<br>
wms:<a class="moz-txt-link-freetext" href="http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map&FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=hautrichelieu20110508_swir&">http://osm.arkemie.org/cgi-bin/osm_wms?map=/mapsite/hautrichelieu.map&FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=hautrichelieu20110508_swir&</a><br>
    <br>
    <br>
    Now on to OSM-style-collaborative-iterative flood extent mapping,
    without - and probably then with - boots :)<br>
    <br>
    Best wishes,<br>
    <br>
    Jean-Guilhem<br>
    <br>
    <br>
    Le 28/05/2011 05:53, Daniel Begin a écrit :
    <blockquote cite="mid:SNT103-DS194DF30D3488BE57C5DF4F94790@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";
        color:black;}
a:link, span.MsoHyperlink
        {color:blue;
        text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
        {color:purple;
        text-decoration:underline;}
pre
        {margin:0cm;
        margin-bottom:.0001pt;
        font-size:10.0pt;
        font-family:"Courier New";
        color:black;}
span.EmailStyle18
        {mso-style-type:personal;
        font-family:Arial;
        color:navy;}
span.EmailStyle19
        {mso-style-type:personal;
        font-family:Arial;
        color:navy;}
span.EmailStyle20
        {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 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;">Hi all,<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've tried to "put my boots on the ground"
                      without  going
                      there !-).  I found a pretty clear satellite image
                      of the river at its max
                      level (30-31m) - which doesn't really changed
                      since ...<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;"><a class="moz-txt-link-freetext" href="http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=50577">http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=50577</a><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 made few geometric adjustments to the
                      image and compare the
                      result with 30m GeoBase and SRTM contours. Geobase
                      contours gives better
                      results between St-Jean and L'Île aux Noix but
                      from there to the <st1:country-region w:st="on"><st1:place
                          w:st="on">US</st1:place></st1:country-region>
                      boundary, neither
                      GeoBase nor SRTM is right.<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'm trying to produce a flooded area from
                      DEM data while I'm
                      looking at an image that contains what I'm looking
                      for - the flooded area!  Why
                      not mapping from it? I understand the image can be
                      used - <a class="moz-txt-link-freetext" href="http://earthobservatory.nasa.gov/ImageUse/">http://earthobservatory.nasa.gov/ImageUse/</a><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 on how I can use this GeoTiff
                      image in JOSM?<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;">Cheers,<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>
                <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
                      color="black" face="Times New Roman" size="3"><span
                        style="font-size: 12pt; color: windowtext;"
                        lang="EN-US">
                        <hr tabindex="-1" size="2" width="100%"
                          align="center"></span></font><br>
                  </div>
                </div>
              </div>
            </o:smarttagtype></o:smarttagtype></o:smarttagtype></o:smarttagtype></blockquote>
    <br>
    <br>
    <pre class="moz-signature" cols="72">-- 
pgp 0x5939EAE2
</pre>
  </body>
</html>