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El Nino may have been less of a factor in Northern Hemisphere climate around 4000 B.C. than it is now, and global warming may be working to accentuate El Nino's current and future impacts. National Center for Atmospheric Research scientists are uncovering implications for world climate.
A new Web site from the National Center for Atmospheric Research provides data on the cost of damages from hurricanes, floods, and tornadoes in the United States and its territories. The Extreme Weather Sourcebook reports decades of information in constant 1997 dollars, simplifying comparisons among impacts and among states.
Tropical coral reefs could be harmed by atmospheric carbon dioxide (CO2) entering the oceans; some reefs may already be declining.
Three planets have been found orbiting the star Upsilon Andromedae in the first discovery of multiple planets outside our solar system. NCAR scientist Timothy Brown was part of the team of eight scientists who observed the additional planets.
Carbon dioxide emissions over the next century could increase wintertime precipitation in the U.S. Southwest and Great Plains by 40% as global average temperature rises 3 degrees Fahrenheit, according to a new climate model developed at the National Center for Atmospheric Research.
The National Center for Atmospheric Research's Mt. Washington Winter Icing and Storms Project is testing methods for remote sensing and improved prediction of in-flight icing conditions that can down small aircraft.
Until now scientists have found it hard to predict which summer days would produce giant, flood-prone storm systems in the nation's midsection. Now they may have found two keys: the strength of intense downdrafts from mountain storms upstream, and the formation of small- scale low-pressure areas that can help trigger flooding rains for days.
Scientists from the National Center for Atmospheric Research will fly over a prescribed blaze in the Alaskan forest seeking clues to how violent and seemingly unpredictable forest fires spread.
This year may bring a bumper crop of Atlantic hurricanes, thanks to the influence of La Nina and other factors. This release includes Web sites, answers to frequent questions, and hurricane experts from the National Center for Atmospheric Research and other institutions.
Researchers at the National Center for Atmospheric Research have found bright rings around eight sunspots. The rings' existence sheds light on why sunspots are dark and could spell trouble for conventional models of turbulent diffusion. Scientists have searched for the rings since they were predicted 25 years ago.
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