How often are the Google Earth images updated?

Answer 1

The one over my house hasn't been updated in over 4 years.

Answer 2

hi, (ANS) keep in mind that Google Earth relies upon satelite documents, satelite pictures. this awareness is taken as a team of mozaic like pictures, each image has to overlap or dovetail onto the subsequent. Its a enormous activity to make a very coherant mapping image it is why some components of the worldwide the mapping image documents is definately rather old (we discovered some components right here in Leeds, uk have been better than 5yrs old) and different components are very upto date in deed. it is actual of the greater builtup components of the worldwide, significant cities in the u . s . a . & ecu have spectacular image traits at the same time as others including areas of Africa or South u.s. image decision may well be fairly undesirable. **i've got faith that in case you purchase an approved version of google earth the satalite imagery could be of a greater suitable high quality than the loose for inner maximum use version/s. we've basically had an replace no longer some time past so a doubt yet another replace would be due very quickly. IR

Answer 3

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.

Answer 4

I can only say the same as diaboyos. My house is well out of date. Absolutely fascinating though, isn't it?

Answer 5

Mine is out of date too, but it is a wonderful website.

Answer 6

LOL... the one over our house is from 1992.

Answer 7

several days perhaps, it is from nasa open kml format

Answer 8

very often