Dr. Robert H. Webb is a hydrologist and Diane E. Boyer is a photo archivist with the U.S. Geological Survey National Research Program in Tucson, Arizona.Dr. Raymond M. Turner is a botanist, now retired from the USGS in Tucson. In 1959, Turner established the Desert Laboratory Repeat Photography Collection, now managed by Webb and Boyer.
2 द्वारा ईबुक Diane E. Boyer
Boyer Diane E. Boyer & Turner Raymond M. Turner: Repeat Photography
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 a …
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Diane E Boyer & Robert H. Webb: Damming Grand Canyon
In 1923, America paid close attention, via special radio broadcasts, newspaper headlines, and cover stories in popular magazines, as a government party descended the Colorado to survey Grand Canyon. …
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