Or is it just one shot they have taken?
2006-09-02 13:10:10 · 13 answers · asked by ? 4 in Computers & Internet ➔ Internet
Google Earth obtains its imagery from a wide variety of sources. At its lowest resolution, it uses Landsat imagery, a space bourne satellite that has imaged pretty much the whole of the Earth since its launch in 1999. This provides 15 metre resolution data - so each pixel represents 15m by 15m on the ground. They also have an arrangement with Digital Earth, whose QuickBird satellite has a resolution of about 60cm - which looks pretty close to aerial photography. There was a large update of this type of imagery in June (http://www.ogleearth.com/2006/06/google_earth_ge_3.html).
They also use aerial photography, mostly from local suppliers.
So, depending on data source, it would be possible to have imagery from about five years ago right next to imagery acquired this year. They are active in updating the imagery, but there is only so much cloud free data acquired at high resolution by satellites and aerial cameras each year, so you are never going to achieve a complete, up-to-date (say from this year) archive of imagery.
2006-09-03 23:25:32 · answer #1 · answered by jjstarj 2 · 0⤊ 0⤋
Google have not updated the imagery for at least the last 4 years. when I view my house there is no double garage that I had built 4 years ago. So even though I have version 4 it is just the interface that has changed. Why let us have the full version when they can sell it for a lot of money.
2006-09-02 20:25:43 · answer #2 · answered by starman 3 · 0⤊ 0⤋
Google earth is a con. The building I work in is 5 years old and when we did a check on google earth, The pictures show a construction site with cranes and stuff. Enjoy!
2006-09-02 20:15:46 · answer #3 · answered by Anonymous · 0⤊ 0⤋
if you are using this version...
New - June 12, 2006 - Google Earth (Release 4 - BETA)
then you have the updated 1 , that's the 1 I use
2006-09-02 20:16:38 · answer #4 · answered by ridingthestorm_out 4 · 0⤊ 0⤋
As long as Google updates with the latest satellite imagery, you're stuck with the one shot.
There is a July 13 version available
2006-09-02 20:13:10 · answer #5 · answered by Anonymous · 0⤊ 0⤋
my parents have lived at the same address for over 30 years - but when i did a search on google earth the picture didnt look accurate at all. Sure it still has my car on the drive (picture slightly fuzzy though) - which I changed over 4 years ago (plus not lived at home for 6 years)
2006-09-03 09:43:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I think it updates every once and awhile.
But most of the time Google Earth is just a little off.
2006-09-02 20:15:58 · answer #7 · answered by superduper 2 · 0⤊ 0⤋
Hi. It is updated regularly. The government limits some areas they consider important.
2006-09-02 20:12:56 · answer #8 · answered by Cirric 7 · 0⤊ 0⤋
apparently it anit been updated for about 5 years thats wot i woz told, cos ive just downloaded it my self lol but its good
2006-09-07 14:00:02 · answer #9 · answered by its me 2 · 0⤊ 0⤋
They do update it, but it is not in real time.
2006-09-02 20:17:10 · answer #10 · answered by Linda 5 · 0⤊ 0⤋