posted on Dec, 22 2013 @ 03:19 PM
I contract for this company working on map data actually, mostly user's reporting problems with directions and data being incorrect/old. But I see
and have access to the abundant amount of map data they own, and it's mind boggling!
Back before I worked for them I used to love Google Earth for research and discovering info. The older versions where much friendlier, but the basics
are still the same.
The cache is what you want to increase, but unfortunately I don't think you can ever make it large enough to get the whole planet, let alone a single
country or even region, cached for offline use.
Here's the deal. The database that is serving the aerial imagery is dynamic and always being updated. This usually depends on what's going on. Like
in Fukushima they updated the aerials almost immediately after the incident, and it's still odd how they sent a streetview team in recently to gather
data on that ghost town and the cleanup process. The aerials I checked just last week were really scary, 1000's of storage tanks and new structures.
They are the largest resource for global digital map data that I can tell, but definitely not implementing it the best for research-style use.
All I can say for certain is that any serious trucking company or delivery service won't be using Google map products to get correct information.