[OSM-talk] Jacmel Haiti, DigitalGlobe Imagery, and Road Alignment

[Karl Guggisberg]

Hi,

I have the same problem. Brad Neuhauser said on the crisismapping list 
that lot of work has been done before digitalglobe was available. In 
particular, an old CIA map has been used, there are a lot of objects 
with a source tag refering to it. I've started to delete individual 
buildings which are obviously badly off. I'm not sure whether the 
digitalglobe imagery is correctly rectified, thought. Anybody?

Regards
Karl

Am 19.01.2010 20:24, schrieb Al Haraka:
> All,
>
> I understand we are all busy, but I have some Haiti questions.  The 
> area around Jacmel in the south appears to be very messy at the 
> moment, and I am only focusing on roads and basic infrastructure.  The 
> roads seem very far off, and at times some do not even seem to point 
> to an artifact I can see in the imagery.
>
> http://www.openstreetmap.org/?lat=18.22381&lon=-72.52094&zoom=16&layers=B000FTF 
> <http://www.openstreetmap.org/?lat=18.22381&lon=-72.52094&zoom=16&layers=B000FTF>
>
> I have tried cleaning it up using the DigitalGlobe imagery, which I 
> have assumed to be the best.  Am I wrong here?  What are other people 
> using and what are the current recommendations?  Am I doing a bad job 
> or wasting my time aligning the roads if they are this far off?  I 
> realize my use of DG may bias me, and I have not taken the time to 
> compare.  That being said, I heard it was the most recent and expansive.
>
> Sorry for the newbishness here.  I just want to help, and I heard 
> Jacmel and all points south will be needed soon.
>
> Regards,
> _AJS
>
> -- 
> Alexander J. Stein
> Cell:  (201) 412-9479
> Email: alharaka at gmail.com <mailto:alharaka at gmail.com>
> Skype: alexander.j.stein
> AIM:   elduderino6886
>
>
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