Scientist Tom Painter examines the differences between pure and dirty snow. A rise in dust can be a critical influence on snow-fed water supplies in the American West.
Image of the Day Land Human Presence Snow and Ice
Acquired May 2 and April 27, 2013, these images document a dramatic change in Colorado thanks to a late-spring snowstorm.
Image of the Day Land Severe Storms Snow and Ice
Image of the Day Land Unique Imagery Snow and Ice
This satellite map of snow cover shows that every state in the contiguous U.S., except for Florida, received snow in January 2011.
Image of the Day Snow and Ice
A below-normal snowpack in the Southern Rockies could spell trouble for water managers if the deficit continues into late winter and spring.
Image of the Day Land Life Snow and Ice
By January 7, 2007, Colorado had endured three major snowstorms in as many weeks.
Image of the Day Severe Storms Snow and Ice
What a difference one year has made in the snow cover over North America.
Image of the Day Snow and Ice Temperature Extremes