Author Topic: Earth Explorer  (Read 1602 times)

indrr

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Earth Explorer
« on: December 08, 2014, 12:48:10 PM »
I've mentioned this site before as a source of historic aerial photography, but not given it a separate topic. So here goes

EarthExplorer is a nice site by the USGS that can be used to access aerial photography and other products: http://earthexplorer.usgs.gov/

How to use:

You'll need to sign up (free for personal/noncommercial use I think) to download files.

You can search by the place name, by drawing an area on a map, and other ways. Then on the "Data sets" tab, select Aerial Imagery-->Aerial Photo Single Frames.
Then click on Results, which will give you a list of all the image frames available that overlap your search area/point.

Depending on the place, they have a wide range of aerials available. Some places back to the early 30s, some only to the 60s. Note the scale on each result--the smaller the number, the more detail. ~24,000-28,000 is typically the best resolution available for historic aerials. Some of the lower resolution images can be useful too depending on what you're looking for.

To see the footprint of the image, click on the foot icon on the result. To download, click on the download option.

Have fun!

Nathan Bilger
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