Hi,
Great find Daniel !
To use directly the GeoTiff images in JOSM, you could try the
ImportImagePlugin, but I haven't tried it.
I put the EO1-ALI images from Earth Observatory online, in WMS and TMS,
with the coordinates included in the GeoTiff files.
Apparently, they were not georeferenced in
Daniel Begin wrote on May-27-11
> 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 ...
> http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=50577
_
From: Daniel Begin [mailto:jfd...@hotmail.com]
Sent: May-27-11 15:18
To: 'Brent Fraser'
Cc: 'HOT Openstreetmap'; 'talk-ca'
Subject: Re: [Talk-ca] [HOT] Flooding in Richelieu River, Quebec,Canada
:Follow-up(Complement of information)
Bonjour Brent,
Which
is valid !-)
I'm also looking at converting this into .gpx format as proposed Richard
Cheers,
Daniel
_
From: Brent Fraser [mailto:bfra...@geoanalytic.com]
Sent: May-27-11 14:19
To: Daniel Begin
Cc: 'Pierre Béland'; 'HOT Openstreetmap'; 'talk-ca&#x
Daniel,
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.
Best Regards,
Brent Fraser
On 5/27/2011 11:52 AM, Daniel Begin wrote:
Bonjour tous le monde,
I have generated a 30m and 31m con
2011/5/27 Daniel Begin :
> Bonjour tous le monde,
>
>
>
> I have generated a 30m and 31m contour lines for Richelieu 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 Pierre.
>
Bonjour tous le monde,
I have generated a 30m and 31m contour lines for Richelieu 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 Pierre.
Any idea if this data can be used (
Jean-Guilhem Cailton wrote on 2011-05-27
> According to the shapefile data, Lake Champlain, and hence Venise-en-Québec
> are above the 30 m elevation.
> The shapefile contains punctual elevations of 31 m in this area (Plage
> Missisquoi, for example).
> The next contour line would be the 40 m o
-
> /Pierre Béland /
> 2011-05-27
>
>
> *De :* Jean-Guilhem Cailton
> *Date/heure :* 2011-05-27 05:19:54
> *A :* Pierre_Béland
> *Cc :* Brent Fraser; HOT Openstreetmap; talk-ca
> *Sujet :* Re: [Ta
bec town has been severely
affected by floods?
regards,
Pierre Béland
2011-05-27
De : Jean-Guilhem Cailton
Date/heure : 2011-05-27 05:19:54
A : Pierre_Béland
Cc : Brent Fraser; HOT Openstreetmap; talk-ca
Sujet : Re: [Talk-ca] [HOT] Flooding in Richelieu River, Quebec, Canada
Hi Pierre,
The 30 m contour lines from tiles 031h03 and 031h06 (the shapefiles you
gave), potentially connected to Richelieu river, have been imported, and
put together in relation:
http://www.openstreetmap.org/?relation=1602671
Clearly, it is not enough to estimate the flooded zone, for which so
Pierre,
I can't comment on if the 30m contour solution is suitable, but if you
want to extract the 30m contours, you could:
1. Use QGIS to extract 30m contour from *_FO.._1.shp files
- load shapefile, Open Attribute Table, click on elevation
field name to sort table by elevation value
Many osm volunteers have worked in the last two days to correct roads, complete
Canvec import and add street names.
An other task is to estimate the flooded zone along the Richelieu River and
Missisquoi Bay in Lake Champlain. One simple approach to determine the flooded
zones would be to use th
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