The University of Arizona

climate variability

Seasonal Precipitation

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Drizzly winter rains and raucous summer thunderstorms differ in how they affect the Southwest’s climate and landscape. This section describes these different types of storms and their impact on the landscape and water resources.

Monsoon Modeling

Posted by Chelsey Killebrew | on August 21, 2008
Atmospheric scientists explain the complexities associated with trying to predict the North American Monsoon with a global climate model.

Attributing the Causes of Climate Change

Posted by Stephen Miller | on August 10, 2008
Researchers discuss the difficulties in establishing links between environmental deviations and human-induced climate change.

Understanding the Southwestern Monsoon

Posted by Zack Guido | on July 22, 2008
The monsoon season is a showcase of dramatic weather. While the storms suppress sweltering temperatures and resuscitates vegetation, they also deliver intense rains, powerful winds, and a high number of lightning strikes. Although experts see no clear-cut trends in monsoon activity over the last 100 years, global warming incites the question: will the monsoon strengthen or weaken in the future?

A Shift Toward Aridity

Posted by Stephanie Doster | on March 26, 2008
Westerly winds and other forces could make drought-prone regions even drier.