Environmental Sciences

Environmental Sciences Experts

Jonathan Friedman

The U.S. Geological Survey
United States Virgin Islands


Jonathan Friedman is a hydrologist at the Fort Collins Science Center. Since joining the Fort Collins Science Center in 1993, he has devoted his career to studying interactions among riparian vegetation, river flow and channel change. Present research topics include use of riparian tree rings to reconstruct past river flow, quantification of federal reserved water rights, and determination of the effect of riparian vegetation on bank stability.

Research Interest

riparian plant ecology hydrology fluvial geomorphology dendrochronology phenology


  • Riparian Ecology

  • Erosion and Invasive Saltcedar

  • Reconstructing Flow History From Riparian Tree Rings

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