Tree-ring science and streamflow reconstructions are not new 1900s - Douglass links tree growth and climate in Southwest 1930s - First studies relating tree growth to runoff 1940s - Schulman investigates history of Colorado River flow using tree rings 1960s - Fritts develops modern statistical methods for climate reconstruction 1976 - Stockton and Jacoby reconstruction of Lees Ferry streamflow 1980s – Further refinement of analytical techniques 1990s 2000s – Many new flow reconstructions for western US; major increase in applications to water management Douglass Schulman
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