Dear Severin, dear Andres,
Thanks for your answers. Good to know hot volunteers are looking at the
imagery.
Copernicus/Sentinel offers more than imagery. I think classified maps
could be a good data source for volunteers.
The issue with the provider (ESA) is that it is not easy to get the data
source. The fact that data is now freely available should improve
things, but i have not found any tiling map server either. As Andres
points out you need that for use in web applications like iD.
The opportunity is the fact that ESA also needs users. They actively
promote use by the community through for example the Copernicus Masters.
A few years ago i had the honour of accepting the GMES prize (as it was
called then) for an crowdsourcing web application where we used
satellite imagery to monitor deforestation. That particular initiative
fizzled out by lack of a sustained active community. HOT/Openstreetmap
on the other hand, has a strong, committed community for years
Here is the idea:
- contact ESA to discuss data availability (and publicity for ESA)
- server
- information layers for disaster response
- fork iD to include layer lists which can be configured by a HOT task
manager (she/he should be able to select data sources for a particular task)
- write instructions for the different data layers, again to be selected
by a HOT task manager
What do you think? I have a background in remote sensing and might be
able to contact some people in ESA or the Anwendungszentrum (they
organise the Copernicus Master). I would love to make a contribution
this way.
Best regards,
Edwin
Op 18-9-2015 om 19:58 schreef Ortiz, Andres - (p):
Hi Edwin,
We’re actually facing this exact same issue for an earthquake
simulation we’re doing tomorrow in Mexico City [1].
Please also consider this; as far as I know, satellite Image providers
(like Digital Globe) could provide their data the fastest way as WMS ,
however that’s only useful for editing with JOSM and not with ID editor.
Another thing you have to consider is that the satellite image is
provided already ortorectified otherwise that’s another step you need
to perform on the images before jumping to use them.
Mapbox provides their satellite image layers over TMS
Take a look at this article[2], they talk about the use of the images
from Digital Globe for Turkey’s earthquake HOT OSM activation.
Regards,
Andres Ortiz Haro
Telenav Mexico
https://www.openstreetmap.org/user/Andresuco
[1] https://wiki.openstreetmap.org/wiki/EN:Mexico_Earhquake_Drill_2015
[2] http://hotosm.org/fr/node/86
*From:*Severin Menard [mailto:[email protected]]
*Sent:* Friday, September 18, 2015 2:53 AM
*To:* Edwin Wisse
*Cc:* [email protected]
*Subject:* Re: [HOT] Getting current satellite data after an emergency
Hi Edwin,
A few people are testing the use of Sentinel imagery for potentiel use
in OSM and I guess they will provide some feedback afterwards.
Sincerely,
Severin
On Mon, Sep 14, 2015 at 10:14 PM, Edwin Wisse <[email protected]
<mailto:[email protected]>> wrote:
Hello,
In the past i have participated in some missing maps and hotosm tasks.
However, i have often found it difficult to distinguish between
terrain types in areas i do not know. For example, along a river in
Central Africa vegetation marks the low water river banks, the area
behind it can flood during high water. In a missing maps task the task
was to map these areas to identify sleeping sickness vulnerable areas.
This cannot be done well using a single dataset for a single date of
aerial images. The instructions in the task descriptions are very
helpful but sometimes not enough. One needs more information than
aerial photos provide.
Presently there is an increasing number of satellites providing more
and more information. The european Sentinel series provides both radar
and visual imagery and various dataproducts derived from that imagery.
These information products are used in emergency situations. The
humanitarian openstreetmap tasks benefit from a simple mapping client
like the in-browser iD editor. id gives the user a choice in
background layers, by default a user can choose between bing, mapbox
and mapquest.
Do you think it would be beneficial if satellite data products like
Sentinel derived information were available in an in-browser
openstreetmap editor like iD? I think information products like
vegetation maps, soil moisture, etc would provide useful background
information and could be described well enough in the task instructions.
Best regards,
Edwin Wisse
--
Edwin Wisse
N 52 48'02.69" E 6 3'16.33"
http://www.kandedifang.com/
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--
Edwin Wisse
N 52 48'02.69" E 6 3'16.33"
http://www.kandedifang.com/
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