Volunteers in Project BudBurst are tracking plant blooms across the US, providing a baseline for studying climate change impacts. Key findings include some plants blooming earlier than usual, which could be related to rising temperatures.
Researchers at NCAR suggest that half of the heat believed to have built up on Earth is unaccounted for due to inadequate measurement tools. The scientists call for additional ocean sensors and better data analysis to track the flow of energy through the climate system.
A new study reveals that pollutants from Asia are being transported to the stratosphere during monsoon season, potentially affecting global climate. The research found that black carbon, sulfur dioxide, and other pollutants are lifted into the stratosphere by Asian monsoon circulation patterns.
A new study finds that prescribed burns can reduce fire emissions of carbon dioxide in the West by an average of 18 to 25 percent. Prescribed fires are designed to burn underbrush and small trees, reducing the chances of subsequent high-severity wildfires and protecting large trees and keeping more carbon locked up in the forest.
A new study suggests that painting building roofs white could reduce urban heat island effects by 33%, cooling cities by an average of 0.7 degrees F. However, the authors caution that actual use of white roofs would depend on various factors and may not be feasible due to wear and tear.
Researchers developed an innovative technique, Intelligent Outlier Detection Algorithm (IODA), to detect errors in sensitive technological systems. The algorithm can identify faulty readings or problems associated with failing sensors and isolate bad data.
A new study suggests that policymakers should focus on achieving mid-century emission targets to preserve long-term options for avoiding dangerous levels of warming. The research identifies critical mid-century thresholds that would make particular goals unachievable with current energy technologies.
The study found that changes in the Bering Strait affected ocean currents, causing summer temperatures to oscillate between warmer and colder phases in North America and Greenland. This led to dramatic tipping points for climate patterns, especially in the Arctic.
New research shows daily record high temperatures occurred twice as often as record lows over the last decade across the continental US. The study predicts that if emissions continue to climb, the U.S. ratio of daily record high to record low temperatures will increase dramatically.
Scientists have found that the number of sunspots provides an incomplete measure of changes in the Sun's impact on Earth over the course of the 11-year solar cycle. High-speed streams of wind from the Sun intensify the energy of Earth's outer radiation belt, posing hazards to satellites and space travelers.
A new study reveals that Arctic temperatures have been warming at an unprecedented rate, surpassing the natural cooling trend over the past 2,000 years. The research suggests that human-induced greenhouse gas emissions are overpowering natural climate patterns, leading to dramatic impacts on the region.
Research reveals subtle links between solar cycles, stratospheres, and tropical Pacific Oceans, driving periodic weather patterns globally. The study predicts the intensity of climate phenomena like Indian monsoon and tropical Pacific rainfall years in advance.
New research by NCAR shows a key link between the solar cycle and global climate, with maximum solar activity impacting Earth similarly to La Nina and El Nino events. The study may pave the way toward better predictions of temperature and precipitation patterns.
The NCAR system combines satellite data, computer weather models, and AI techniques to identify rapidly evolving storms and potential areas of turbulence. Pilots on selected transoceanic routes will receive real-time turbulence updates, providing critical situational awareness.
The NCAR-IDB partnership aims to assess climate risks and develop response plans in Latin America and the Caribbean. Trained scientists will predict climate change impacts and help governments develop strategies to protect society.
A nationwide survey found that nearly 9 out of 10 adult Americans obtain weather forecasts regularly, with an estimated 300 billion forecasts used each year. The study reveals that most people are satisfied with forecasts and place a high value on them, equivalent to $31.5 billion annually.
A new computer model reveals striking detail about sunspots, including their structure and dynamics. The simulations capture convective flow and energy movement that underlie sunspots, enabling scientists to better understand their role in solar output and climate patterns.
Research suggests that moderate to high Greenland ice melt rates could drive 4-12 inches of additional water towards heavily populated areas in the northeastern US and Canada, on top of average global sea level rise. This could lead to significant impacts on the northeast US coast by 2100.
The VORTEX2 project, a collaborative international study, aims to gain a better understanding of tornado formation and damage patterns. By deploying advanced weather-sensing tools, researchers hope to identify the characteristics of severe thunderstorms that produce tornadoes, ultimately leading to more accurate tornado warnings.
A study by NCAR scientists found significant changes in about one-third of the world's largest rivers, with many experiencing decreased flow due to climate change. The reduced flows threaten future supplies of food and water, particularly for large populations relying on these rivers.
A new analysis suggests that drastic emission cuts could stabilize climate change, saving Arctic ice and reducing sea level rise. Global temperatures would still rise, but the most dangerous impacts could be partially avoided with a 70% reduction in greenhouse gas emissions.
The system gathers detailed info about weather and road conditions from moving vehicles, providing critical alerts to drivers. The goal is to reduce crashes, injuries, and deaths by giving drivers timely warnings about nearby hazards.
The NCAR forecast system will provide highly detailed, localized weather forecasts to enable utilities to make critical decisions about powering down traditional plants when sufficient winds are predicted. The system will help increase reliance on wind energy while meeting customer needs.
Scientists embark on three-year project to measure carbon dioxide and other greenhouse gases worldwide, shedding light on their distribution and impact on climate change. The research will enable better predictions of greenhouse gas emissions and inform society's decisions about climate change mitigation.
A new study by NCAR and University of Colorado warns that developing countries will struggle to afford and implement efficient technologies, exacerbating global warming. The research suggests that even advanced nations are worsening the outlook for global warming due to increasing emissions.
The UCAR project aims to provide long-term weather forecasts to medical officials in Africa to target vaccination programs and reduce meningitis epidemics. The forecasts will be used to focus on regions most at risk, pulling back from areas that are about to get rain, and helping vulnerable populations.
The new system, AMSTAR, will provide NCAR with up to 30 petabytes of storage capacity and enable scientists to conduct increasingly sophisticated computer studies of Earth's climate. The system is based on the Sun StorageTek SL8500 Modular Library and will allow NCAR to store its valuable scientific data for the next 15-20 years.
A new study by scientists at the National Center for Atmospheric Research finds that wildfires can boost ozone pollution to levels violating US health standards. The research focused on California wildfires in 2007 and found that they repeatedly caused ground-level ozone to spike to unhealthy levels across a broad area.
Researchers will examine three decades of hurricane activity in unprecedented detail using a combination of climate and regional weather models. The goal is to better inform coastal communities and industries affected by changes in hurricanes.
Researchers investigate how tree vegetation influences local weather patterns and air quality in the Rocky Mountains. A four-year field project, BEACHON, aims to understand interactions between plants, atmosphere, and climate change.
Researchers at the National Center for Atmospheric Research discovered that plants in a forest produce significant amounts of methyl salicylate, a chemical form of aspirin, in response to stress. This finding has the potential to give farmers an early warning signal about crops that are failing.
A new analysis of ice cores reveals that West Antarctica's climate is influenced by atmospheric and oceanic changes in the tropical Pacific, with dramatic year-to-year temperature swings and a century-long warming trend. The findings show the connection between global warming and periodic events like El Niño.
A new study by NCAR researchers warns that rapid sea ice loss in the Arctic could lead to accelerated land warming and permafrost thaw, posing significant risks to sensitive ecosystems and human infrastructure. The study finds that a period of abrupt sea-ice loss could initiate significant emissions of greenhouse gases from Arctic soils.
The National Center for Atmospheric Research (NCAR) has installed a new IBM supercomputer called Bluefire, which will accelerate research into climate change and severe weather events. The system, with a peak speed of over 76 teraflops, is expected to rank among the world's top 25 most powerful computers.
A new study by NCAR and Ohio State University found that climate models consistently overstate Antarctic warming, but still project significant sea-level rise due to melting ice sheets. The researchers suggest that warmer temperatures could slow down or speed up sea-level rise depending on future temperature increases.
New research suggests that injecting sulfate particles into the stratosphere to cool the planet would have a drastic impact on the ozone layer. The study finds that such an approach might delay the recovery of the Antarctic ozone hole by decades and cause significant ozone loss over the Arctic.
A new study by NCAR and CSU finds that unusually sunny weather contributed to last summer's record loss of Arctic sea ice. The research suggests that warmth from the Sun will increasingly affect Arctic sea ice loss in the summer.
The National Hurricane Center will implement a new technique, VORTRAC, to continually monitor landfalling storms in the United States. VORTRAC uses existing coastal Doppler radars to provide details on hurricane winds and central pressure every six minutes.
A new study published in Nature argues that the Intergovernmental Panel on Climate Change (IPCC) has underestimated the technological challenges of reducing CO2 emissions. The authors suggest that the IPCC's assumptions are overly optimistic, as spontaneous advances in technology will not carry most of the burden of achieving future em...
A new study finds evidence of an ocean 'thermostat' regulating sea-surface temperatures in the Western Pacific Warm Pool, protecting coral reefs from severe warming. This discovery lends support to a long-debated theory that naturally warm waters may be more resistant to climate change.
Researchers from NCAR and UCAR present over 100 papers on climate change, including connections between hurricanes and climate, economic value of weather forecasting, and impact on aviation. The study highlights the importance of accurate and timely weather forecasts for everyday life.
The Digital Library for Earth System Education (DLESE) has relocated to the National Center for Atmospheric Research (NCAR), providing continued access to its vast collection of digital learning resources. The move aims to preserve open access to the collection and support NCAR's educational mission.
New research estimates that US fires release around 290 million metric tons of carbon dioxide annually, a significant contributor to greenhouse gas emissions. The study found that large fires can release enormous pulses of CO2 rapidly into the atmosphere, complicating efforts to understand and combat global warming.
The Sunrise project successfully launched a solar telescope to an altitude of 120,000 feet, enabling scientists to view features of the Sun that were previously unseen. The telescope will capture stable images in the ultraviolet range, allowing for higher resolution than can be obtained from Earth's surface.
A new study estimates that US forest fires release about 30% of the nation's total mercury emissions, primarily affecting the environment and human health. The Southeast region emits the most mercury, followed by Alaska and California, highlighting the need for better protection measures.
A new turbulence detection system using NEXRAD Doppler radars provides real-time snapshots of turbulence to pilots, helping them avoid hazardous areas. The system's accuracy is reported to be high, with pilots praising its ability to provide accurate information about turbulence location and intensity.
Researchers have observed elusive oscillations in the Sun's corona, known as Alfvén waves, that transport energy outward from the surface of the Sun. These discoveries can help unlock secrets of the corona's heat and solar storms, and improve our understanding of how the Sun affects Earth.
NCAR has added a powerful BlueGene/L system to the TeraGrid, providing up to 4.5 million processor-hours of computing power annually. This enhances the nation's comprehensive infrastructure for open scientific research, increasing the TeraGrid's total computing capability and data storage.
A pilot forecasting program in Bangladesh is delivering 1- to 10-day forecasts directly to over 100,000 people living on floodplains, alerting them to potential floods. The system uses a combination of weather forecast models, satellite observations, and hydrologic modeling techniques to predict flooding.
A new study suggests that warmer sea surface temperatures and altered wind patterns are fueling the increase in Atlantic hurricane activity. The analysis indicates that climate change is a major factor in the rising number of hurricanes, with correlations closely tied to SSTs.