[OSM-talk] Intriguing artifacts in GeoEye data

[ce-test, qualified testing bv - Gert Gremmen]

This IS a picture ! Not drawn !
It coincides with a aftershock location 
Gert

-----Oorspronkelijk bericht-----
Van: Marcus Wolschon [mailto:marcus.wolschon at googlemail.com] 
Verzonden: maandag 18 januari 2010 21:56
Aan: john at jfeldredge.com
CC: ce-test, qualified testing bv - Gert Gremmen; talk-bounces at openstreetmap.org; OpenStreetMap talk mailing list
Onderwerp: Re: [OSM-talk] Intriguing artifacts in GeoEye data

Sounds like buildings drawn precisely from high-res but poorly
georeferences aerial photos.
Looking at a sat-image you don´t know if not all of that photo is 50
or 200 meters off unless you
are on the ground to compare.

On Mon, Jan 18, 2010 at 4:51 PM, John F. Eldredge <john at jfeldredge.com> wrote:
> If only man-made artifacts are displaced, but not the terrain, that must be a mapping error.  An actual earthquake land-shift would have displaced the terrain, and moved buildings and other artifacts along with the land.