[HOT] Getting current satellite data after an emergency

Edwin Wisse edwin at kandedifang.com
Sat Sep 19 15:39:52 UTC 2015

Dear Severin, dear Andres,

Thanks for your answers. Good to know hot volunteers are looking at the 

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,

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:severin.menard at gmail.com]
> *Sent:* Friday, September 18, 2015 2:53 AM
> *To:* Edwin Wisse
> *Cc:* hot at openstreetmap.org
> *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 <edwin at kandedifang.com 
> <mailto:edwin at kandedifang.com>> 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"

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