Articles tagged with Climate Modeling
A University of Washington scientist found that summertime coastal fog has declined and coastal temperatures have increased slightly since 1950. Climate models predict an increase in fog, but regional patterns may be overriding this effect.
Scientists developed an instrument that measures individual particle sizes and compositions, revealing a complex landscape of aerosol particles. The research improved computer models of the atmosphere by accounting for the varying effects of different chemistries on climate.
Current global climate models predict varying levels of warming, with disagreement mainly stemming from different representations of clouds. Researchers from the University of Hawaii at Manoa have assessed model performance in simulating clouds, presenting a new approach to determining expected cloud feedbacks in a warmer climate.
A new citizen scientist initiative is expanding regional climate modeling efforts, exploring southern Africa, Europe, and the western US, using idle computers of thousands of volunteers. The project aims to fine-tune future climate models by comparing simulations with real data and analyzing changes over the past 50 years.
Researchers have developed a mathematical model that predicts relationships among leaf functions based on three properties of the vein network: density, distance between veins, and number of loops. The study indicates that plants with denser vein networks can absorb more carbon while withstanding higher levels of water loss.
Research scientist Alessandra Giannini wins NSF CAREER award to advance understanding of climate model projections in the African Sahel. She aims to identify mechanisms attributed to natural variability, land use change, or global warming, using data from global models and atmospheric observations.
Researchers used corals as a proxy to study the shift in the ocean's thermocline, finding it has risen since the mid-1970s. The findings support climate model predictions and suggest a potential impact on global climate and oceanography.
Researchers developed a new approach to determining the optimal distribution of sulfates in the stratosphere to achieve defined climate goals. The study found that uniformly distributed aerosols can minimize both temperature changes and hydrological cycle alterations, with potential reductions of up to 90% and two-thirds, respectively.
Scientists found that irrigation can have a significant cooling effect on regional temperatures, with some areas experiencing up to 3 degrees C cooling. However, the study also warns of impending water scarcity due to overuse of groundwater aquifers, which could exacerbate food shortages and temperature increases.
Researchers discovered a relict coral reef in the southern Pacific Ocean that thrived thousands of years ago, providing insight into how reefs adapted to sea level changes. Additionally, heavy snowfall in the US and Europe was caused by the collision of El Niño and negative North Atlantic Oscillation weather patterns.
The Community Earth System Model (CESM) is a powerful new computer software that will be used in the next IPCC assessment to study climate change. With its advanced capabilities, scientists can shed light on critical mysteries of global warming, including ice sheet melting and regional climate patterns.
A new project aims to enhance the accuracy of climate models by leveraging data mining techniques. The collaboration between UT and ORNL will help predict large shifts in regional climate patterns and improve predictions of severe meteorological and hydrological events.
The Community Earth System Model (CESM) is a powerful new tool for studying climate change, enabling scientists to simulate the complex interactions of the atmosphere, oceans, and land surfaces. The CESM will help researchers better understand the impacts of global warming on ice sheets, tropical cyclones, and aerosols.
A new study by Stanford University climate scientists predicts that exceptionally long heat waves and hot events will be frequent in the US by 2039, posing risks to agriculture and human health. The researchers used climate models to project a 1.8-degree Fahrenheit increase in global temperature, leading to more intense heat extremes.
The NASA Center for Climate Simulation (NCCS) has been introduced at NASA's Goddard Space Flight Center, offering enhanced computing capacity and data interaction technologies. This will support NASA's growing climate data needs and enable climate simulations and predictions.
Researchers calculated that a warming of 12 degrees Fahrenheit would cause some areas to surpass the wet-bulb temperature limit, while a 21-degree warming would put half of the world's population in an uninhabitable environment. Prolonged temperatures above 95 degrees could be intolerable for hours.
A new model forecasts Atlantic croaker population increases and shifts due to climate change, with potential for higher yields. The study demonstrates the importance of considering environmental factors in fisheries management.
A University of Melbourne-led study links earlier butterfly emergence with regional human-induced climate change, revealing a causal link between increasing greenhouse gases and warming temperatures. The study found a 1.6-day shift in the mean emergence date for adults of the Common Brown butterfly over a 65-year period.
Researchers develop new climate modeling process that considers greenhouse gas emissions, projections of the Earth's climate, impacts of climate change, and human decision-making. The approach will influence the next international scientific assessment and provide tools for policymakers to deal with a shifting climate.
New research reveals heat from the Pacific Ocean is responsible for Arctic sea ice loss. Satellite radar can accurately measure hurricane wind speeds. Nitrogen dynamics may accelerate global warming by constraining carbon dioxide absorption.
Biologists at City College of New York have identified a new spiny pocket mouse species, Heteromys catopterius, found in four wet mountainous forest regions along Venezuela's northern coast. The species differs from the Caribbean Spiny Pocket Mouse in darker fur and skull morphology.
Climate Wizard generates color maps of projected temperature and precipitation changes using 16 climate models, making data accessible to a wider audience. The tool allows users to explore climate change impacts on endangered species, drought-prone regions, and freshwater supplies.
A new study published in Nature Geoscience suggests that the Earth's temperature is more sensitive to atmospheric carbon dioxide than previously estimated. The research found that including factors like land-ice and vegetation in climate models increases the temperature response to carbon dioxide, indicating a higher sensitivity.
Researchers used historical climate data to predict that warmer temperatures will cause plants to flower up to 11 days earlier in Scotland by 2080. This change can lead to desynchronisation between plant and animal life, affecting ecosystems across the globe.
NASA's Goddard Space Flight Center has expanded its high-end computing system to support climate simulations, including the Intergovernmental Panel on Climate Change (IPCC). The new system, powered by Intel's Nehalem architecture, will enable faster and more accurate climate modeling.
New research by the UK's National Centre for Atmospheric Science suggests that targeted investments in climate science can improve climate predictions by 10-20% globally and up to 20% in specific regions. This could lead to significant economic savings by reducing the costs of adapting to a changing climate.
A new MIT study forecasts an increase in extreme rainfall events, with precipitation in these events expected to rise by 6% for every one degree Celsius temperature increase. Climate models show varying results within the tropics, prompting further research to determine outcomes in tropical regions.
New research confirms human-induced warming increases atmospheric water vapor content, a greenhouse gas amplifying global warming. Climate models' ability to identify this effect is not influenced by their quality.
Rainfall in Iberian Peninsula to decline due to climate change, with increased frequency in winter and lower amounts in spring-summer. Climate models predict significant changes by middle of 21st century, with varying effects on seasonal distribution patterns.
Researchers created a detailed 'motion picture' of Earth's last major warming event, allowing them to identify key drivers and potential consequences of abrupt climate changes. The study's results provide valuable insights into the complex interactions between ocean currents, atmospheric carbon dioxide, and subsurface heat.
Australia's top scientists will present on using mathematical models to understand complex systems, including climate change and agricultural sustainability. The conference will feature models assessing water availability, predicting aircraft distances for safer skies, and evaluating coral bleaching impacts.
Warmer weather has favored larger birds and generalist species, which are well-positioned to respond to climate change. The analysis of the annual Christmas Bird Count data reveals that only one of three predicted outcomes holds true for North American birds over the past quarter century.
A new study reveals that droughts in West Africa can last for decades, with some droughts lasting up to four times longer than the current Sahel drought. The research suggests that changes in Atlantic Ocean sea surface temperatures play a key role in sustaining these long periods of drought.
The University of Washington is leveraging cloud computing to facilitate data-intensive research on oceans and galaxies. Researchers are using the platform to explore climate simulations and analyze astronomical images, which previously were too large for individual computers to handle.
Recent research reveals a 'pacemaker' climate shift mode controlling global temperature changes. Meanwhile, natural ocean 'thermostats' for Pacific reefs are disputed, suggesting underreported bleaching events. Space dust also interacts with the atmosphere, vaporizing and leaving behind high-altitude metal ions and molecules.
A new study forecasts the likelihood of climate factors matching at geographically distant airline departure and destination points, enabling more efficient detection and interception of invasive species. The model uses recent forecast data for climate change and air traffic volumes, predicting a peak risk in June 2010.
A new study forecasts when climate factors will match at geographically distant airline departure and destination points, helping to detect and intercept invasive species. The findings provide a framework for monitoring airline flights and planning more efficiently.
The University of Chicago is launching a large-scale collaboration to develop a computational modeling tool that will help policymakers make informed decisions on climate and energy policy. The new framework, CIM-EARTH, will analyze and predict the effects of climate policy decisions on the global economy.
Research suggests that human activity may not have a detectable impact on Atlantic hurricanes, but warming may lead to more intense storms. Century-long records show rising tropical storm counts from the mid-1800s, while hurricane counts remain stable.
A Princeton study finds that climate change may reduce the competitiveness of some invasive plants, creating restoration opportunities in areas dominated by 'intractable' weeds. The study mapped invasion risk across millions of acres in the US West.
Climate change and sea ice fluctuations threaten emperor penguin populations, with a median colony size predicted to decline from 3,000 to 400 breeding pairs. The probability of drastic decline is at least 40%, putting the species at risk of extinction.
The report highlights the importance of aerosol research in predicting Earth's future climate. Scientists need a better understanding of how aerosols affect climate to narrow down temperature increase uncertainty by nearly two-thirds.
A new Purdue University study suggests that warming temperatures could lead to an increase in corn pests, resulting in decreased yields and increased costs for farmers. The research found that warmer weather could allow these insects to expand their territory and produce an extra generation of offspring each year.
Long-term measurements of atmospheric gases suggest that air masses are moving more slowly than expected, potentially impacting ozone layer recovery. Researchers urge further study to understand the exact mechanisms behind this phenomenon and its implications for climate models.
A team led by Livermore scientists has reconciled the differences between simulated and observed temperature trends in the tropics. They applied a modified statistical test to account for uncertainty in observational data and found no fundamental discrepancy between modeled and observed trends. This reconciliation is thanks to the use ...
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.
Scientists from 40 institutions participate in an international field experiment to collect real-time data on the southeastern Pacific's climate system. The study aims to improve global climate models and better predict Earth's climate.
The IMPACTS program aims to understand possible mechanisms of abrupt climate change and build comprehensive computer models. Researchers focus on four types of ACC: marine ice sheet instability, positive feedback mechanisms in subarctic forests, methane hydrates destabilization, and biosphere-atmosphere feedback leading to megadroughts.
Researchers develop novel weather and climate modeling strategy to isolate interactions between weather and climate, applying it to the NCAR's Community Climate System Model. This project aims to advance Earth system science, improve weather and climate predictions, and inform environmental policies.
A new study suggests that Burmese pythons will not be able to find suitable habitats outside of South Florida, despite initial predictions by the USGS. The researchers used advanced climate models to predict the potential distribution of the snakes in the US and found that they are limited to the vicinity of the Everglades.
New research suggests that climate change may increase Middle East rainfall by up to 50% in the Euphrates-Tigris watershed, contrary to previous projections. This could alleviate agricultural challenges and reduce food shortages.
A new study confirms a link between warmer climates and more powerful rainstorms, increasing the risk of flooding and societal impacts. Researchers found that tropical rainfall extremes increase during warm periods, with heavy downpours boosted by atmospheric moisture.
A new study finds global warming could lead to larger changes in snowmelt in the western US, increasing wildfire risk and creating new water management challenges. The critical surface temperature feedback is twice as strong as projected, potentially accelerating warming.
A new study published in Nature finds that ocean temperatures and sea level increases between 1961 and 2003 were 50% larger than previously thought. The results show sea levels rose by 1.5 millimeters per year, equating to a 2-inch increase in ocean levels over 42 years.
A new study suggests that closing the ozone hole may reverse Southern Hemisphere climate change, contrary to predictions made by IPCC models. The closure of the ozone hole is expected to decelerate tropospheric winds and potentially lead to a reversal of climate change in the region.
Researchers find global sea level acceleration may have started in the 18th century, causing a 6 cm rise during the 19th century and 19 cm during the 20th century. The US east coast also subsided since the Eocene, with wind-launched ocean eddies triggering formation and propagation in the South China Sea.
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.
The researchers propose designing a cost-effective machine for running climate models and improving predictions. They suggest using about 20 million embedded microprocessors, which would deliver results at a lower cost and power consumption than current conventional supercomputers.
A new study by University of Utah meteorologists finds that current climate models are accurate and can be valuable tools for reversing global warming trends. The study shows that coupled models can simulate present-day climate with accuracy approaching conventional observations.
Lawrence Livermore National Laboratory scientists performed a 400-year high-resolution global ocean-atmosphere simulation using the Community Climate System Model (CCSM). The study achieved substantial improvements in simulated surface winds and sea surface temperatures, as well as improved tropical variability and Arctic sea ice thick...