<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Hi Jon,</div><div><br></div><div>In the longer term, I think that you will have more take-up if this is a joint OGC/ W3C standard.</div><div><br></div><div>While you go through this process there is the opportunity for refining the format through practical implementations.</div><div><br></div><div>Bruce</div><div><br>On 30 Aug 2016, at 19:29, Jon Blower <<a href="mailto:j.d.blower@reading.ac.uk">j.d.blower@reading.ac.uk</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri">Dear Jachym,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri">We define the MIME type as “application/prs.coverage+json”. See [1] for more information about this and about our concept of “profiles”.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri">Currently CovJSON is being discussed in the context of the joint OGC/W3C “Spatial Data on the Web” working group, although there is no formal standards process in place at
the moment. In the longer term I’d like to make this a community standard, although I’m not sure whether to do this under OGC, W3C, OSGeo or something else! I’m not very experienced in such things, so any suggestions or guidance would be welcome.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri">Best wishes,<br>
Jon <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri">[1] <a href="https://github.com/covjson/specification/blob/master/spec.md#10-media-type-and-file-extension">https://github.com/covjson/specification/blob/master/spec.md#10-media-type-and-file-extension</a>
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">Jachym Cepicky <<a href="mailto:jachym.cepicky@gmail.com">jachym.cepicky@gmail.com</a>><br>
<b>Date: </b>Tuesday, 30 August 2016 10:15<br>
<b>To: </b>Jon Blower <<a href="mailto:sgs02jdb@reading.ac.uk">sgs02jdb@reading.ac.uk</a>>, OSGeo Discussions <<a href="mailto:discuss@lists.osgeo.org">discuss@lists.osgeo.org</a>><br>
<b>Cc: </b>Massimiliano Cannata <<a href="mailto:massimiliano.cannata@supsi.ch">massimiliano.cannata@supsi.ch</a>>, Bruce Bannerman <<a href="mailto:bruce.bannerman.osgeo@gmail.com">bruce.bannerman.osgeo@gmail.com</a>><br>
<b>Subject: </b>Re: [OSGeo-Discuss] CoverageJSON<o:p></o:p></span></p>
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<p class="MsoNormal">Hi, <o:p></o:p></p>
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<p class="MsoNormal">just humble suggestion: you can make this to OSGeo Community standard, like TMS [1] was at it's time and get more publicity and possible more collaborators to the project. Promote and colaborate via standards mailing list [2]<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">btw: what is the mimetype, we shall stick to? (OGC WebProcessingService and others need one single clear mimeType)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Cheers<o:p></o:p></p>
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<p class="MsoNormal">J<o:p></o:p></p>
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<p class="MsoNormal">[1] <a href="https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification">https://wiki.osgeo.org/wiki/Tile_Map_Service_Specification</a><o:p></o:p></p>
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<p class="MsoNormal">[2] <a href="https://lists.osgeo.org/mailman/listinfo/standards">https://lists.osgeo.org/mailman/listinfo/standards</a> <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">út 30. 8. 2016 v 11:09 odesílatel Jon Blower <<a href="mailto:j.d.blower@reading.ac.uk">j.d.blower@reading.ac.uk</a>> napsal:<o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">Dear all,</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">(Second attempt at sending this, I wasn’t subscribed before!)</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">I’m the leader of the project under which CoverageJSON is being developed [1]. My colleague Maik Riechert is the main developer of this. Thanks very much to Bruce for advertising to this list! I’ll pick up
on a few of the points in this thread:</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">1.</span><span style="font-size:6.0pt">
</span><span style="font-size:11.0pt;font-family:Calibri">Regarding adoption, it’s early days yet, but I’m aware of a few applications in development (including our own projects of course, but also some external folk). We’re building in library support for
a few languages (e.g. Javascript, Python) and some tools (e.g. Leaflet and NASA’s Web World Wind).</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">2.</span><span style="font-size:6.0pt">
</span><span style="font-size:11.0pt;font-family:Calibri">I think CovJSON can work nicely with O&M (the coverage can be the result of the observation). O&M could provide the “hooks” on which other metadata (e.g. provenance) could be hung.</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">3.</span><span style="font-size:6.0pt">
</span><span style="font-size:11.0pt;font-family:Calibri">Regarding compression: yes, this is going to be important. JSON gzips very well on the wire, which helps a lot with transfer speed and our tests indicate that it’s typically not very much worse than
a compressed binary format. We’ve worked successfully with rasters of millions of pixels in size.</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">4.</span><span style="font-size:6.0pt">
</span><span style="font-size:11.0pt;font-family:Calibri">We’d be very happy to help people who want to implement support for CovJSON in software (e.g. istSOS). Maybe our libraries will be of some use here.</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">Any feedback on the spec or tools (positive or negative) is very welcome and timely, as we are moving towards a stable 1.0 release.</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">Best wishes,</span><span style="font-size:11.0pt;font-family:"MS Mincho"">
</span><span style="font-size:11.0pt;font-family:Calibri">Jon</span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">[1] <a href="http://www.melodiesproject.eu/" target="_blank">
http://www.melodiesproject.eu</a></span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<span style="font-size:11.0pt;font-family:Calibri">-- </span><o:p></o:p></p>
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<span style="font-size:9.0pt;font-family:Helvetica">Dr Jon Blower,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:Helvetica">MELODIES project coordinator,
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:Helvetica">University of Reading</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:Helvetica"><a href="mailto:j.d.blower@reading.ac.uk" target="_blank">j.d.blower@reading.ac.uk</a></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-GB" style="font-size:11.0pt;font-family:Calibri"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-family:Calibri;color:black">From:
</span></b><span style="font-family:Calibri;color:black">Massimiliano Cannata <<a href="mailto:massimiliano.cannata@supsi.ch" target="_blank">massimiliano.cannata@supsi.ch</a>><br>
<b>Date: </b>Thursday, 18 August 2016 09:47<br>
<b>To: </b>Bruce Bannerman <<a href="mailto:bruce.bannerman.osgeo@gmail.com" target="_blank">bruce.bannerman.osgeo@gmail.com</a>><br>
<b>Cc: </b>Jachym Cepicky <<a href="mailto:jachym.cepicky@gmail.com" target="_blank">jachym.cepicky@gmail.com</a>>, OSGeo Discussions <<a href="mailto:discuss@lists.osgeo.org" target="_blank">discuss@lists.osgeo.org</a>>, Jon Blower <<a href="mailto:sgs02jdb@reading.ac.uk" target="_blank">sgs02jdb@reading.ac.uk</a>><br>
<b>Subject: </b>Re: [OSGeo-Discuss] CoverageJSON</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Dear All,
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">the coverage in O&M is addressed also at EU level within the SOS but in XML.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I may be interested in exploring this format and add this capability to istSOS in the next future...<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Maxi<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">2016-08-17 22:58 GMT+02:00 Bruce Bannerman <<a href="mailto:bruce.bannerman.osgeo@gmail.com" target="_blank">bruce.bannerman.osgeo@gmail.com</a>>:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks Jachym.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I can also see the potential of this format.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I like the potential for tying in the Observations and Measurements Observed Property with associated community agreed definitions to the coverage. This has been a missing piece
of the puzzle for some time.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I understand that Jon and his team would welcome collaboration to further test and develop the format.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I expect that Jon will respond when he gets back off his holiday.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#888888">Bruce</span><o:p></o:p></p>
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On 17 Aug 2016, at 19:03, Jachym Cepicky <<a href="mailto:jachym.cepicky@gmail.com" target="_blank">jachym.cepicky@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I went through the spec, and I like it in general (not that it would be so important) <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">JSON usage is certainly still growing, so is size of the data. Are you guys using the CoverageJSON in some application already? I like the metadata verbosity, and overall readiness
for international environment.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Have you been thinking about data compression too? For raster data, this could be key issue IMHO.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">good luck<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Jachym<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">čt 11. 8. 2016 v 0:47 odesílatel Bruce Bannerman <<a href="mailto:bruce.bannerman.osgeo@gmail.com" target="_blank">bruce.bannerman.osgeo@gmail.com</a>> napsal:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Hi,<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Are any projects doing any work with the emerging data format, CoverageJSON?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">See:<br>
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- <a href="https://covjson.org/" target="_blank">https://covjson.org/</a><br>
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- <a href="https://github.com/covjson/specification/blob/master/spec.md" target="_blank">
https://github.com/covjson/specification/blob/master/spec.md</a><o:p></o:p></p>
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I understand that this is still a work in progress, but is in a fairly stable state at the moment.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">If anyone has looked at the format in detail, what are your thoughts on its viability for:<br>
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- data exchange; and<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">- to underpin spatial and image analysis?<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Bruce<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
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_______________________________________________<br>
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<a href="http://lists.osgeo.org/mailman/listinfo/discuss" target="_blank">http://lists.osgeo.org/mailman/listinfo/discuss</a><o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:9.0pt;font-family:Arial;color:#222222">Massimiliano Cannata</span></b><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:9.0pt;font-family:Arial;color:gray">Professore SUPSI in ingegneria Geomatica</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:9.0pt;font-family:Arial;color:gray">Responsabile settore Geomatica</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:10.0pt;font-family:Arial;color:#222222"> </span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:9.0pt;font-family:Arial;color:gray">Istituto scienze della Terra</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span lang="IT" style="font-size:9.0pt;color:gray">Dipartimento ambiente costruzione e design</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span lang="IT" style="font-size:9.0pt;font-family:Arial;color:gray">Scuola universitaria professionale della Svizzera italiana</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt"><span style="font-size:9.0pt;font-family:Arial;color:gray">Campus Trevano, CH - 6952 Canobbio</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span lang="IT" style="font-size:9.0pt;font-family:Arial;color:gray">Tel. +41 (0)58 666 62 14</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:9.0pt;font-family:Arial;color:gray">Fax +41 (0)58 666 62 09</span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><span style="font-size:9.0pt;font-family:Arial;color:#222222"><a href="mailto:massimiliano.cannata@supsi.ch" target="_blank">massimiliano.cannata@supsi.ch</a></span><o:p></o:p></p>
<p style="margin:0cm;margin-bottom:.0001pt;background:white"><u><span style="font-size:9.0pt;font-family:Arial;color:blue"><a href="http://www.supsi.ch/ist" target="_blank">www.supsi.ch/ist</a></span></u><o:p></o:p></p>
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