We will be performing routine ERA maintenance starting 3PM Tuesday Feb 19 until 3PM Wednesday Feb 20. ERA searches and downloads will perform as usual, but the "Deposit" and "Edit" function will be suspended during the maintenance period. When the work is complete, we'll remove this notice. Thanks for your understanding!
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The Mountain Legacy Project, the largest repeat photography collection in the world, has more than 6,000 images repeated to date. Previously it was not possible to precisely measure how much and where this change had occurred using oblique angle photographs such as these. I have developed a...