U.S. Geological Survey
Fact Sheet 117-03
version 1.0

Precipitation History of the Mojave Desert Region, 1893–2001

Time series of average monthly Pacific Decadal Oscillation and standardized anomaly index of cool+warm-season precipitation

Figure 8. Time series of average monthly Pacific Decadal Oscillation (PDO) (upper, smoothed) and standardized anomaly index (SAI) of cool+warm-season precipitation (lower). Arrows indicate regime shifts of the PDO.

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UNDERSTANDING EARTH SURFACE PROCESSES AND GEOLOGY—A KEY TO ENSURING FUTURE PROSPERITY