climate modeling News
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Moist Static Energy Budget Analysis of Tropical Cyclone Intensification in High-Resolution Climate Models
Tropical cyclone intensification processes are explored in six high-resolution climate models. The analysis framework employs process-oriented diagnostics that focus on how convection, moisture, clouds and related processes are coupled. These diagnostics include budgets of column moist static energy and the spatial variance of column moist static energy, where the column integral is performed ...
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Improved climate change projections for SE Asia
'This study will provide the first detailed regional information about climate change to assist Indonesian agencies to make better informed decisions about how to respond to these potential changes,' says CSIRO climate modeller, Dr Jack Katzfey. The workshop is part of a year-long project being carried out by the CSIRO Climate Adaptation National Research Flagship and the Indonesian Bureau of ...
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Do clouds affect climate and weather?
Scientists from the National Centre for Atmospheric Science in the UK travelled to Chile to determine how huge swathes of cloud hanging over the southeast Pacific are impacting climate and weather on Earth. The team believed their work would help correct a number of errors found in the climate models used today. The findings will make it easier for scientists to predict future climate change, ...
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Climate variations for the last millennium
Variability and long-term climate change in the Baltic Sea region have been investigated in a 1000-year long climate model simulation. For the first time long-term climate variations over the region have been simulated with a regional climate model. Solar variability, changes in orbital parameters and changes in greenhouse gases over the last millennium are used to force the models. The results ...
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Climate change – this could be the situation in Europe in 30 years time
According to climate calculations, Europe will experience substantial warming, even if the global temperature increase is only two degrees Celsius above pre-industrial levels (known as the two degree target). A global temperature rise of two degrees could be a reality in just 30 years. Some model simulations show that this may occur before 2030, and even in the most optimistic scenarios, it will ...
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Portal Provides Easier Access to Data from Climate Models
Introducing the climate4impact.eu data portal which is aimed at researchers and other users who work with the impacts of climate change and need access to data from climate modelling. The portal has been developed within the framework of an EU project. “The portal will provide unified and simplified access to the global scenario databases in which you can find data and supporting ...
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More than 100 climate simulations show the future climate
Researchers at SMHI have completed over 100 regional climate simulations for Europe, Africa, the Arctic, the Middle East and South Asia within the framework of the CORDEX project. The result is detailed regional material that is unique in its size. It can be used for further research, in studies into climate effects and for climate adaptation. Material from nine global climate models has been ...
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Fewer rain storms across southern Australia
In an address today to the International Union of Geodesy and Geophysics conference in Melbourne, CSIRO climate scientist, Dr Jorgen Frederiksen, said these changes are due to reductions in the strength of the mid-latitude jet stream and changes in atmospheric temperatures. The jet stream comprises fast moving westerly winds in the upper atmosphere. "The drop in winter and autumn rainfall ...
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UK OSNAP expedition
UK Overturning in the N Atlantic Subpolar Gyre Programme (UK OSNAP) is a research project, led by the NOC, which will improve understanding of the circulation and fluxes of the North Atlantic Subpolar Gyre. The transport of heat and freshwater by the North Atlantic Subpolar Gyre greatly affects the climate of the North Atlantic and Europe through its impact on air temperature, precipitation and ...
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Water security in an uncertain world
Policymakers must find flexible plans to ensure water security despite the uncertainties of climate change, says climate scientist Mark New. Much of the developing world is dependent on rainfall, snow or ice for its natural water supplies, so researchers and policymakers are concerned about how climate change will affect water security. Long-term water availability is largely determined by the ...
By SciDev.Net
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Better infrastructure for continued development of climate models
More complex climate models make great demands on a well-functioning computer environment. In a newly established EU project, SMHI is developing and simplifying collaboration between researchers by building up the infrastructure and support services for climate research. The climate models used to make calculations of the future climate are becoming increasingly advanced. They have higher ...
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Rainfall patterns cloud climate changes
The 20th century was neither much drier nor wetter for half the globe than many of its predecessors, European scientists say. On the contrary, they say several centuries in the last 1,200 years experienced much more variable rain and drought than the 1900s. Their findings, which are published with several caveats and which have not so far been replicated, differ markedly from the conclusions ...
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New Discoveries Improve Climate Models
New discoveries on how underwater ridges impact the ocean's circulation system will help improve climate projections. An underwater ridge can trap the flow of cold, dense water at the bottom of the ocean. Without the ridge, deepwater can flow freely and speed up the ocean circulation pattern, which generally increases the flow of warm surface water. Warm water on the ocean's surface makes the ...
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Torrential rainfall a common climate feature in the future
Changes in the climate are expected to result in heavier rainfall. Calculations with climate models show that a heavy downpour will give 20-30 per cent more rain at the turn of the next century. Thunder showers and torrential rainfall in the summer are part of what, in technical jargon, is called extreme or intensive short-term precipitation. “Intensive short-term precipitation is the ...
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Regional climate models discussed at Lund conference
More than 200 researchers from around the world are meeting this week in Lund to evaluate the recent development of regional climate models. These models have certainly been improved greatly in recent years; they can be refined further to provide even better support for the preparations we must make for future climate change. That climate change, very largely caused by human activities, is ...
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African rainfall data `will improve climate predictions`
A comprehensive 30-year dataset of African rainfall could soon help test climate change predictions and improve climate models, according to a UK researcher. David Grimes, who studies satellite data at the University of Reading, told SciDev.Net that his group will release the complete, open-access data set within a year. Researchers can already provide good short-term forecasts of Africa's ...
By SciDev.Net
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Ocean temperatures and sea level increases 50% higher than previously estimated
New research suggests that ocean temperature and associated sea level increases between 1961 and 2003 were 50 percent larger than estimated in the 2007 Intergovernmental Panel on Climate Change report. The results are reported in the June 19 edition of the journal Nature. An international team of researchers, including Lawrence Livermore National Laboratory climate scientist Peter Gleckler, ...
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How will the climate be impacted by future changes to the Arctic`s sea ice and snow cover?
Extreme weather events such as cold snaps in the winter and heat waves in the summer have been linked to the reduction of sea ice and warming in the Arctic. The proportion of the observed extreme events that is due to the reduction of sea ice in the Arctic is still an unanswered question. The GREENICE research project plans to find out more about the interplay between changes in climate and ...
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Climate change models discussed at Lund conference
More than 200 researchers from around the world are meeting this week in Lund to evaluate the recent development of regional climate models. These models have certainly been improved greatly in recent years; they can be refined further to provide even better support for the preparations we must make for future climate change. That climate change, very largely caused by human activities, is ...
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Guest Post: Sandy Creates US Climate Hope?
SOURCE: 3BL Media, LLC DESCRIPTION:As I watch the revealing impact of the storm in the US and the power of nature wreaking havoc on the financial heartland of the US I wonder if we are witnessing the pivotal moment in the US climate change debate? We cannot not underestimate the impact of an again vulnerable New York, to overcome stubborn political denial and corporate lobbying. From a detached, ...
By 3BL Media
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