Articles tagged with Climate Modeling
A new study by ISGlobal provides robust evidence that COVID-19 is a seasonal infection linked to low temperatures and humidity. The research team found a negative relationship between the transmission rate of SARS-CoV-2 and both temperature and humidity at the global scale.
New research from the University of Arizona suggests that a slowdown in the Atlantic Meridional Overturning Circulation (AMOC) will intensify extreme cold weather in the US. The study found that without the AMOC, extremely cold winter weather would become more frequent and severe.
A study found that climate change increased the probability of heavy rainfall by 70% in Brazil's Minas Gerais state, leading to severe flooding, deaths, and massive damage. The extreme event caused over 90,000 people to be temporarily homeless and resulted in significant economic losses.
A team of researchers, led by Scott T. Salesky, will conduct field work in Antarctica to study the impact of katabatic winds on snow transport and ice sheet growth. The study aims to advance understanding of katabatic flows and their effects on regional and global atmospheric and oceanic circulations.
Researchers found that microbes' growth rate decreased over 15 years of warming, and a loss of soil carbon may be responsible for the slowdown. Rare bacterial taxa were among the fastest growers, highlighting the importance of considering different organisms' responses.
A new methodology creates a watershed-scale flood model based on LiDAR data, providing precise elevation readings and riverbed depth information. The system can predict flood conditions and provide warnings to area residents, making it applicable to large rivers and smaller streams.
Researchers warn that global warming could make the Amazon barren, the Midwest tropical, and India too hot to live in by 2500. Climate models project a future where vegetation and crop-growing areas shift towards the poles, leading to drastic changes and potential human fatalities.
Researchers have assessed climate factors affecting tea growth and quality at nine locations in Kenya and Malawi, predicting substantial increases in heatwave days but declines in cold nights. The study suggests tailored interventions and plant breeding programs can help producers adapt to future climates.
Scientists from Stellenbosch University found that phytoplankton are active during winter in the Southern Ocean, contradicting previous assumptions. This discovery improves predictive global climate models and sheds light on adaptation strategies of phytoplankton under adverse growth conditions.
A new study finds that massive columns of smoke from a nuclear war would destroy much of the ozone layer over a 15-year period, with peak ozone loss averaging about 75% worldwide. This would lead to devastating effects on human health and food supplies, as well as terrestrial ecosystems.
A new climate model challenges the idea that Venus ever had oceans, suggesting high surface temperatures and limited solar radiation prevented ocean formation. The research team found that clouds on night-side Venus would actually maintain high temperatures through a greenhouse effect, further supporting this conclusion.
A geologist from the University of Texas at Arlington is investigating the origin and climate importance of loess, a sediment formed by wind-blown dust, in Montana, Wyoming, and northeast Colorado. Her research aims to identify the sediment's source, when it appeared, and the climate changes that caused it to form.
A new study examines alternative scenarios and their potential impact on climate mitigation targets. The research suggests that retaining low-energy practices in lifestyle and business could reduce climate mitigation challenges, while missing these opportunities would lead to a more difficult energy transition.
Scientists have directly observed carbon-centered hydroperoxyalkyl radical (QOOH), a crucial intermediate product in climate change models and combustion engine design. The study's results improve understanding of oxidation reactions and their impact on atmospheric pollution.
New research shows that climate models are underestimating the warming effect of black carbon aerosols transported over the South-East Atlantic. The study, led by Dr Marc Mallet, found that biomass-burning aerosols can lead to an increase in absorbed sunlight, potentially warming the climate system.
The Woods Hole Oceanographic Institution is leading a new NOAA-funded project to investigate the role of western boundary currents in climate change. The study aims to improve climate models by quantifying oceanic and atmospheric variability in these currents, which have a significant impact on extreme weather and sea-level.
A new study projects that marine heatwaves will wipe out hundreds of thousands of tonnes of fish available for catch in a country's waters by the century's end. Researchers warn that extreme temperatures will exacerbate impacts on fisheries and human communities, leading to significant job losses.
Tropical rainforests have uneven biodiversity due to geological history and climate. Researchers used a new model to simulate species diversification, finding that historical dynamics of mountain building and climate change drove biodiversity distribution rather than current climate factors.
Researchers developed an AI algorithm that can assess climate change tipping points, predicting rapid or irreversible change in systems. The new approach can detect features of tipping points common to various complex systems, including ecology, epidemiology, and markets.
Researchers identified climate-resilient root, tuber and banana crop varieties with flexible planting dates to adapt to warmer and wetter conditions. Cassava, banana, and sweet potato are most adaptable, while potato growing areas are vulnerable.
Researchers at the University of Reading found that climate models underpredict regional temperatures and rainfall, particularly in the mid-latitudes, by neglecting extratropical wind variability. This increases uncertainty and likelihood of extreme weather events like heatwaves and droughts.
The new Fengyun-3E satellite provides 100% global data coverage, with 11 instruments on board to observe cloud, radiation, and more. China joins Europe and the US in sharing a global responsibility for early morning orbit observations.
A mathematical model developed at Linköping University predicts that many species in polar regions will become extinct due to global warming, with ecosystems already showing signs of strain. The model simulates the impact of climate change on species interactions and diversity, highlighting the importance of considering ecological proc...
A new study using Argo system ocean temperature data refines climate modeling predictions by identifying models most consistent with observations. The analysis shows that land and air temperatures only tell part of the story, with oceans storing 90% of the planet's heat.
A new study proposes a practical way of measuring how different nations should reduce carbon emissions to maximize worldwide wellbeing. The utilitarian approach assigns different emission reduction goals to countries based on their wealth and ability to grow and maintain citizens' health.
The NYU-led Learning the Earth with Artificial Intelligence and Physics (LEAP) center will combine artificial intelligence and climate modeling to better predict climate change impacts. The center aims to provide more accurate climate predictions by analyzing satellite images, large-scale observational data, and developing new algorithms.
Researchers found a 12,000-year record of marine sediment cores in Antarctica showing fluctuations in sea ice levels affecting algae growth. Algal bloom events occurred nearly every year before 4,500 years ago, but became less frequent after 4.5 thousand years ago, responding to climate cycles like ENSO.
The article explores the potential of AI in improving climate modeling by proposing a hybrid approach combining classical and machine learning methods. Researchers found that AI can help improve forecasts, but limitations include computational resource requirements and uncertainties in predictions.
A new study published in Climate Dynamics analysis observational data and a large climate model found that the Earth's 11-year cycle is out of sync with solar fluctuations. The findings refute climate skeptics' claims that the sun plays a major role in global warming.
MacBean aims to develop advanced predictive tools using satellite remote sensing, field experiments, and process-based models to understand dryland ecosystems' response to climate change. Drylands support 38% of the world's population but are sensitive to moisture availability.
Researchers are using tree rings and sediments to reconstruct Atlantic hurricane history over millennia. By combining these natural archives with global climate model simulations, they aim to refine the record of history's hurricanes.
A new study improves climate change cost estimates by considering annual climate variability and persistent economic damages. This advancement highlights the urgent need for climate action to mitigate the damage caused by greenhouse gas emissions.
A new study by Portland State University assesses strategies for the Hood River watershed to adapt to climate change. The researchers found that a combination of water banking, infrastructure improvements, and reflexive feedback mechanisms can achieve overall resilience.
A new study using convection-permitting models reveals improved simulations of precipitation and atmospheric circulation over the Tibetan Plateau. The models reduce the wet bias in simulated precipitation by 47% and improve the simulation of large-scale circulation, leading to better moisture transport into and out of the plateau.
A new study simulates global warming at unprecedented resolution, revealing that increasing CO2 concentrations will weaken the intensity of the ENSO temperature cycle. This could lead to fewer El Niño and La Niña events, with potential implications for rainfall extremes.
A new study found that global marine ecosystem models differ widely in their representation of key processes, leading to underestimation of climate change impacts. Marine ecosystem models generally agree on biomass decline but disagree on magnitude and location across the world's oceans through the 21st century.
Researchers at UEA developed a new method for measuring carbon uptake by Arctic plants, providing insights into the impact of climate change on this process. This study reduces uncertainties in previous assessments and investigates the influence of environmental factors on carbon uptake.
A Purdue University study suggests that the eastern half of the US is a hotspot for severe thunderstorms due to high terrain, while the Gulf of Mexico plays a relatively weak role. Removing the Gulf would shift storm patterns eastward into Illinois and reduce them over southern Texas.
Researchers found that climate change will amplify the temporary cooling caused by large eruptions and reduce its effect on small- and medium-sized eruptions. The study used global climate models to simulate how volcanic aerosols might be affected by warming scenarios.
Research by University of Washington and US Forest Service scientists reveals a dramatic shift in nighttime air's drying power over the Western US, increasing wildfire activity. This shift is not captured in climate models, with some areas experiencing water loss doubling up on warmer nights.
A new warning system has been proposed to address increasing heat waves due to climate change, taking into account evolving heat thresholds and longer hot seasons. The system aims to prevent heat-related mortality outside typical heat wave periods through health alerts.
Scientists propose integrated strategy combining climate action with policies for development, food access, equity, and environmental sustainability. The Sustainable Development Pathway aims to reconcile decent living with ecological boundaries.
Researchers at Oak Ridge National Laboratory are advancing various technologies to minimize oil leaks, enable 3D printing in space, and increase fuel efficiency from ethanol. They have developed a quantum sensing system to detect pipeline leaks more quickly, built a thermal protection shield for a capsule launched into space, and creat...
A new study suggests that droughts in South America will increase by the end of the century due to rising temperatures and greenhouse gas emissions. The study used 38 Global Climate Models to analyze temperature and precipitation changes across the continent.
A University of Oklahoma researcher is using fluid dynamics principles to improve climate modeling, with a focus on turbulent transport in the lower atmosphere. The project aims to enhance predictability and accuracy in weather and climate patterns.
A new study predicts that global warming will lead to a sharp increase in heat-related deaths, outstripping the decline in cold-related mortality, unless strong mitigation measures are taken immediately. The Mediterranean Basin is expected to be disproportionately affected due to its greater vulnerability to heat.
Researchers developed a new model that addresses gaps in urban climate modeling, providing global multi-model projections of local urban climates. The study finds that cities in high-stakes regions like the Great Lakes and southern Europe are at higher risk for extreme heat events.
A study suggests that China will experience an increase in landfalling tropical cyclones by the end of the 21st century, with a projected 16% rise in annual mean frequency and a 10% increase in occurrence frequency. The study used regional climate models to simulate future changes in temperature and precipitation patterns.
Thirty state-of-the-art IPCC-climate models predict varying climates for Europe due to differing simulations of North Atlantic ocean currents. The analysis highlights the importance of incorporating ocean circulation into climate models, suggesting that uncertainties in predictions may be largely dependent on changes to this circulation.
Researchers developed a simple-to-use Multivariable Integrated Evaluation Tool (MVIETool) to facilitate climate model evaluation and models inter-comparison. The improved MVIE method provides a more comprehensive and precise evaluation of climate model performance, including accurate evaluation results for spatial fields.
Researchers have found that summer rainfall on the Tibetan Plateau is highly predictable on multiyear timescales using large ensemble predictions. The study reveals a substantial underestimation of the predictable signal in state-of-the-art decadal prediction models.
Two international studies analyzing Antarctic ice cores found warmer temperatures in East Antarctica during the last ice age, with temperatures averaging 6.1 degrees Celsius colder than today. The findings better match global climate models and strengthen confidence in their ability to simulate Earth's climate.
A new study using Regional Climate Models (RCMs) at kilometer scale has shown significant improvements in simulating extreme rainfall events. The RCMs outperform lower resolution models, especially during summer months, providing more accurate predictions for policymakers to adapt to climate change.
A new study reveals that winds play a crucial role in driving changes in ocean circulation patterns, particularly in the sub-polar North Atlantic. The study's findings suggest that future climate change may alter annual AMOC variability in this region.
A study analyzing climate simulations reveals that small differences in aerosol forcing can significantly affect simulated temperatures and Arctic sea ice area. The results show that natural and anthropogenic forcing uncertainties can markedly impact simulations of Earth's past and future climate.
Carbon dioxide played a crucial role in warming early Earth's climate, offsetting the reduced light from the young Sun. The δ18O ratio of ancient seawater suggests a warm but not hot environment, with high CO2 concentrations, around 3 billion years ago.
A study by Manuel Santos Gutiérrez and colleagues reveals that machine learning-based simplified climate models can build an actual understanding of the climate system. The findings indicate that data-driven methods are dynamically and physically sound, producing robust simulations. This breakthrough has significant implications for va...
Scientists monitor two Ethiopian bird species, White-tailed Swallow and Ethiopian Bush-crow, to understand their response to climate change. The study found that both species are at severe risk of extinction in the next 50 years as their ranges become unsuitable for survival.
A new study evaluates the performance of CMIP6 models in simulating the global warming slowdown observed in the early 2000s. Most models fail to reproduce this phenomenon, despite presenting some improvements over CMIP5 models.
A new study finds that model biases in simulating tropical climate trends can significantly impact projections of extreme El Niô frequency change. By removing the impacts of these biases, researchers conclude that the extreme El Niô frequency is likely to remain unchanged in the future, contrary to original projections.