[OSM-newbies] Somewhat live satellite imagery?

[Bill Ricker]

On Thu, Jan 28, 2010 at 8:23 PM, Tony Morris <tonymorris at gmail.com> wrote:

> An aircraft wrecked on a nearby mountain yesterday which I have done a
> few of the tracks on OSM. I'd like to know the exact position of the
> wreck. Is there imagery available that would help me find out?
>
> Yes and no.

Unclassified, free to net government images are either low-res or not
current or both, unless they specifically release images of your event.

The non-government sources charge good money for recent images of good to
moderate resolution.

The resolution of unclassified sat images is not as good as you likely
expect. the imagery you may be used to in Google Earth / Google
Maps's"Satellite" mode,  and JOSM or POTLATCH in the hi-res areas are rarely
if ever actual mil-grade sat images but rather civil government or
commercial mapping aerial photo series. Unlike Sats, they don't refresh
weekly.

The Amazing Turk project to find  Jim Gray got donations of commercial sat
images of the Pacific, we were looking for a 5 - 8 pixel yacht between the
clouds. At commercial resolution, it would have to be a big plane directly
under the image center to be recognizable to a untrained observer.



-- 
Bill
n1vux at arrl.net bill.n1vux at gmail.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/newbies/attachments/20100128/ac1eec72/attachment.html>