Document Title:
Autumn in Colorado (DI02185) Photo by Carlye Calvin
Description:
Aspen show off their fall color in the mountains west of Boulder, Colorado. The most brilliant displays generally occur in September. Shorter days and longer nights cause the trees to begin to go into dormancy. The chlorophyll in the leaves decreases leaving the carotenoids, which are orange or yellow. Aspen show off their fall color in the mountains west of Boulder, Colorado. The most brilliant displays generally occur in September. Shorter days and longer nights cause the trees to begin to go into dormancy. The chlorophyll in the leaves decreases leaving the carotenoids, which are orange or yellow.
Creditline:
copyright University Corporation for Atmospheric Research
Keywords:
(DI02185) nature,aspens,autumn,Carlye Calvin,fall
Filename:
DI02185.tif
