Google Earth Aerials
- Thread starter Teegate
- Start date
I just find it totally amazing that so much of the entire globe has been captured in such incredible detail, and this is just what is made available to the public.
If they can get the closest zoom levels as clear as the rest of the levels I would be satisfied,now one more zoom wouldn't hurt of course unless you happen to be answering the call of nature in the woods at the moment they snap the picture
If they can get the closest zoom levels as clear as the rest of the levels I would be satisfied,now one more zoom wouldn't hurt of course unless you happen to be answering the call of nature in the woods at the moment they snap the picture
I am sure 'they' can. Perhaps even read your CC #
Years ago I was watching the show Frontline and an image analyst hinted that it was possible for them to date a dime in a football field. Granted this could have been sensationalism for the show. We will never see what satellites are fully capable of, U.S. regulation prohibit commercial customers from viewing anything better than .5 meter ground resolution. The newest WorldView and GeoEye satellites have a resolution of .3 meter ground resolution and that specification is what is being released to the public. I am certain the images the military is able to view are astonishing - 3d high resolution mapping.
What is the source of those regulations? I wonder exactly how they are defining "viewing anything better than .5 meters". The NJ 2007 orthoimagery has a resolution of 1 foot per pixel. So a .5 x .5 meter object on the ground would (theoretically) be represented with 4 pixels (2 x 2). There is also higher resolution publicly available imagery, maybe 6 inches per pixel. I posted this map of downtown Philadelphia over 3 years ago and each pixel represents a rectangle of 9 inches x 12 inches (.2 x .3 meters) on the ground. http://www.gpsfiledepot.com/maps/view/237/
Boyd, I saw the ground resolution limit of .5 repeated on GeoEye's site and several others. I haven't found the exact regulation but it has to do with U.S. governments license restrictions.
-The origin of .5 meter ground resolution has to with an operating agreement between NOAA and GeoEye-1.
"Imagery sold to commercial customers will be resampled to 0.5-meter resolution. GeoEye’s current operating license with NOAA does not permit the commercial sale of imagery below 0.5-meter resolution."
I see nothing new...... Is there a trick involved, or am I just looking in the wrong area ????
Lets discuss Google. I am using a different computer and I am going to have to rely on Google much more than I would like to. I have some questions and maybe some tips.
I showed this to Bob the other day and I have used this quite often, however, I also have issues. Open Google Earth and click on the icon at the top that looks like a clock. A slider will show up. Slide it right and left and even click again on the clock. Also play with the two buttons in the slider. You can move through the aerial years and go back as far as the 1995 aerials.
Now..if you are adventurous open a GPX file in Google and play with the slider. Do your waypoints disappear as you move through the years? My question is ...can you make the waypoints always show up and if so how did you do it? It is very frustrating that as I move back to 1995 they disappear and I can't view waypoints. I have to say that sometimes a few will show but the rest are gone until I move back close to 2012.
Guy
I showed this to Bob the other day and I have used this quite often, however, I also have issues. Open Google Earth and click on the icon at the top that looks like a clock. A slider will show up. Slide it right and left and even click again on the clock. Also play with the two buttons in the slider. You can move through the aerial years and go back as far as the 1995 aerials.
Now..if you are adventurous open a GPX file in Google and play with the slider. Do your waypoints disappear as you move through the years? My question is ...can you make the waypoints always show up and if so how did you do it? It is very frustrating that as I move back to 1995 they disappear and I can't view waypoints. I have to say that sometimes a few will show but the rest are gone until I move back close to 2012.
Guy
I was on LBI today. The GE view I have is clear of that area, no clouds.
To find out what date an image was taken, you have to zoom in close and the date will appear in the lower left.
Are they the ones they took for the storm damage? Maybe some areas of the image didn't matter as much as other areas....
Guy my tracks disappear when going back in time but my gpx waypoints are just fine.I click on view,historical imagery and a slider bar comes up and I can go all the way back to 95 and keep my points just fine but my track does disappear.