At a recent GIJN webinar, three experts explained how reporters can get regular, free access to high-quality satellite images ...

One of the most powerful online tools at your disposal is the sprawling Google Earth project, which allows you to use ...

Of course, you also need to know the diameter and height of a tank. Diameter is easy, just use Google Earth’s ruler tool. Height is a bit more tricky, but can often be determined by just ...

5. Select the unit of measurement you want to use from the dropdown. You'll see a yellow line appear on the map and the measurement will show up in the ruler portion of the Google Earth Pro window.