Southwestern Trees Hold the History—and Future?—of El Niño
Tuesday, May 10, 2011
The impact of tropical Pacific ocean temperatures on the hydroclimate of the Southwest is profound: on timescales of 2-8 years, El Niño and La Niña events influence the amount of winter precipitation we receive. Trees living across the Southwest region record these changes in moisture in the width of their rings, providing us with a history of precipitation going back thousands of years or longer in some places. (Read More)