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

Precipitation History of the Mojave Desert Region, 1893–2001

Figure 7. Standardized anomaly index (SAI) as a function of average Pacific Decadal Oscillation (PDO) during the year preceding (lag 1) and year of (lag 0) cool+warm-season precipitation, 1900–2000.

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