New research indicates that shifts in Pacific trade winds played a key role in twentieth century climate variation and are likely again influencing global temperatures. The study, led by NCAR and the University of Arizona, uses a novel method of analyzing coral chemistry to reveal winds from a century ago.
New research led by NCAR shows that an increase in greenhouse gases thousands of years ago helped cause substantially more rainfall in two major regions of Africa. The finding provides new evidence that the current increase in greenhouse gases will have an important impact on Africa’s future climate.
A groundbreaking technological development has been recognized this month with one of the world’s most prestigious awards for innovations related to water resources. The research team, including the University Corporation for Atmospheric Research, has developed a way to use GPS to measure soil moisture, snow depth, and vegetation water content.
Unregulated trash burning around the globe is pumping far more pollution into the atmosphere than shown by official records. A new study led by NCAR estimates that more than 40 percent of the world’s garbage is burned in such fires, with emissions that can substantially affect human health and climate.
Researchers at NCAR and partner organizations are making significant headway in predicting the behavior of the atmosphere on a variety of fronts. Highlights include improving weather forecasts, advancing renewable energy capabilities, helping satellites avoid space debris, and estimating the risk of a crop slowdown due to climate change.
The world faces a small but substantially increased risk over the next two decades of a major slowdown in the growth of global corn and wheat yields because of climate change, according to NCAR and Stanford University research. Such a slowdown would occur as global demand for crops rapidly increases.
Scientists at NCAR and partner organizations are launching a major field project across Colorado’s Front Range this month to track ozone pollution. Results from the month-long study, which uses aircraft, ground sensors, and other instruments, will provide needed information to officials to ensure that air in the region is healthy.
Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new research led by NCAR. The detailed study shows that Americans face the risk of a 70 percent increase in unhealthy summertime ozone levels by 2050.
NCAR scientists and partners next week launch a field project in the tropical Pacific, a remote region that holds a key to understanding worldwide climate. The warm waters fuel huge clusters of thunderstorms that act as a global chimney, lofting gases and particles into the stratosphere and affecting the planet.
Snowplows are getting more intelligent this winter, thanks to a new digital intelligence system that equips them with custom sensors to measure road and weather conditions. The system, funded by the U.S. Department of Transportation and designed by the National Center for Atmospheric Research, is intended to reduce accidents and save states millions in winter maintenance costs.
Scientists have developed a new computer modeling technique that offers the promise, for the first time, of producing continually updated daylong predictions of wildfire growth throughout the lifetime of long-lived blazes. The technique, developed by a research team led by NCAR, combines detailed computer simulations with newly available satellite observations.
Although a significant build-up in greenhouse gases in the atmosphere would alter worldwide precipitation patterns, geoengineering would also interfere with rainfall and snowfall. An international study, led by NCAR scientists, finds that “geoengineering” could result in monsoonal rains in North America, East Asia, and other regions dropping by 5-7 percent compared to preindustrial conditions because of less evaporation and reduced plant emissions of water.
Scientists have fingerprinted a distinctive atmospheric wave pattern high above the Northern Hemisphere that can foreshadow the emergence of summertime heat waves in the United States more than two weeks in advance. The new research, led by scientists at NCAR, could potentially enable forecasts of the likelihood of U.S. heat waves 15-20 days out, giving society more time to prepare for these often-deadly events.
Four lead authors and editors of the Intergovernmental Panel on Climate Change (IPCC) report will participate in a U.S. media teleconference this Friday at 12:00 Noon (Eastern Time). The teleconference is presented by the National Center for Atmospheric Research and partner universities.
When enough raindrops fall over land instead of the ocean, they begin to add up. New research led by NCAR shows that three atmospheric patterns drove so much precipitation over Australia in 2010 and 2011 that the world’s ocean levels dropped measurably.
The NCAR-Wyoming Supercomputing Center has been named the 2013 “‘Green’ Data Center of the Year” at the inaugural Datacenter Dynamics North American Awards.
Taking part in the largest U.S. air quality field project in decades, the National Center for Atmospheric Research is working with partners to study pollution in the Southeast. The study looks at the impact of chemical reactions occurring between human-related pollution and volatile organic compounds emitted from vegetation.
NCAR is launching a major field campaign this week with collaborators to better predict where and when spring thunderstorms will hit the Rockies and Plains. The project, featuring research aircraft and cutting-edge computer simulations, will point the way toward major improvements in 6- to 24-hour forecasts of severe weather.
The National Center for Atmospheric Research, building on a pioneering wind energy forecasting system that saved millions of dollars for Xcel Energy ratepayers in eight states, has entered into a new agreement with the utility for even more sophisticated weather forecasts to increase the reliability of solar and wind energy.
The main source of online weather training for meteorologists, emergency managers, and others is seeking donations to try to stay in business.
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