HOW TO CACHE GOOGLE EARTH IMAGERY

Hello Alessio,

In order to have access to Very High Resolution Images of the plots through Google Earth when the Internet connectivity is limited I propose you to use Google Earth Voyager.

This program allows you to "program" Google Earth to systematically visit the plots that you are going to assess when you have Internet connectivity.

WHEN GOOGLE EARTH VISITS A PLOT AND THE IMAGE IS LOADED IT WILL REMAIN IN THE SO CALLED CACHE FOLDER!

Attention: this folder can only contain 2 Gigas of imagery! So if you have a whole country it will not be enough. My advice is then to repeat the process that is going to be described province by province. When GE Voyager has finished with a province save the cache folder separately. Then start with the next and so on. When you have to work on the provinces make sure that the right cache folder is pasted into the Google Earth cache.

How to cache:

So first, you should open the CSV file or CED file where the coordinates of the plot-centers are located. Take the latitude and longitude columns and copy them. Create a new CSV file where now you will have the coordinates in the order LONGITUDE, LATITUDE.

Example of Paraguay simple LULUCF projects

Result of taking only longitude and latitude columns

Save this resulting style sheet as a CSV (MD-DOS).

Now you can open Google Earth voyage and copy/paste the contents of the CSV file ( open it in Notepad or similar) into the dialog where you can program the specific locations that Google earth will travel to:

VERY IMPORTANT: Follow the instructions from GE Voyager ( Menu Help->Help Contents->Quick Start ):

As a quick start you have to do the following:
1. Open Google Earth (GE).
2. Go to "Tools" menu -> Options -> Touring tab
3. Set the "Fly to Speed" option to the max Fast.
4. Go to "Add" menu -> Network Link, then browse for the file called GEVData.KML 
which is beside the program.
5. In the appearing dialog and in the Refresh tab, check the option "Fly to view on 
refresh" and then choose "periodically" and set the time to 10 seconds (you can change
 the refresh rate as you want).
6. Press OK.
7. Open Google Earth Voyager (GEV), while your Google earth is still running.
8. Set the data you want to scan in the program and press Start Voyage. You will see 
that GE is refreshing the snapshots automatically. (Set the Refresh Every field the same
as the value you set for the network link).
9. If you want to pause the voyage, press "Pause". If you want to resume the voyage 
again, press "Resume Voyage". IF you want to stop at any time, press "Stop" 
and the program will stops and clear all values.

After GE Voyager has "traveled" through the plots the images will reside in the Google Earth Cache ( you can access the Google Earth Voyager menu.

This will open the file explorer, now you could copy the files that you find therein into a USB key and paste them into the Cache folder of Google Earth in other computers so that they too have access to the same cached images.

Of course it is not ideal to use Collect Earth without an Internet Connection but I hope this helps a little in the process!

Hi, have you ever tested this Voyager? According to my experience it does not work with Google Earth 7.x because Google changed method for caching imagery data.

Hi!

I am a bit confused, which one of Touring or Voyager is the most efficient to cache for 6,000 points?

I might not have a choice as I have been unable to make Voyager work on Google Earth 7.x (not Google Earth pro). If Voyager is better, I will have to make it work. If Touring is better, then I can ignore my problem with Voyager.

Thanks for the guidance!

Florence

Hi Florence Just go with the method described with touring as the voyager method is obsolete.