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Raymond M. Turner

Dr. Raymond M. Turner is a botanist, now retired from the USGS in Tucson. In 1959, Turner established the Desert Laboratory Repeat Photography Collection.

Repeat Photography

Repeat Photography

Methods and Applications in the Natural Sciences

First developed in the 1880s as a way to monitor glaciers in Europe, repeat photography —the practice of taking photographs at different points in times from the same physical vantage point—remains an essential and cost-effective technique for...