Latest Global climate model Stories

2012-05-07 20:18:50

One popular climate record that shows a slower atmospheric warming trend than other studies contains a data calibration problem, and when the problem is corrected the results fall in line with other records and climate models, according to a new University of Washington study. The finding is important because it helps confirm that models that simulate global warming agree with observations, said Stephen Po-Chedley, a UW graduate student in atmospheric sciences who wrote the paper with...

Climatologists Predict More Extreme Summer Temperatures in 21st Century
2012-02-16 14:32:07

A new report published by an American non-profit research center says that extreme summer temperatures are becoming increasingly commonplace in the United States, a trend that they project will continue throughout the 21st century. Climatologist Phil Duffy led a group of researchers at the Lawrence Livermore National Laboratory (LLNL) in California in analyzing the results of various climate models examining the occurrence of extreme high temperatures in the summer months of June, July and...

Clearing The Air On Cloud Simulations
2011-10-27 08:36:16

Climate models have a hard time representing clouds accurately because they lack the spatial resolution necessary to accurately simulate the billowy air masses. But Livermore scientists and international collaborators have developed a new tool that will help scientists better represent the clouds observed in the sky in climate models. Traditionally, observations from satellites infer the properties of clouds from the radiation field (reflection of sunlight back into space, or thermal...

Image 1 - Modeling The Local Impact Of Global Climate Change
2011-09-18 06:38:11

  Scripps researcher adapts global climate model to improve regional predictions "You don't need a weatherman to know which way the wind blows," Bob Dylan famously sang. But if you want to know how it will blow tomorrow, odds are you're going to check the forecast. Atmospheric prediction has improved immeasurably in the 45 years since Dylan sang "Subterranean Homesick Blues." Whether you're interested in tomorrow's high or the global heat index a decade from now, forecasters can...

2011-08-23 17:54:35

Although the rain this summer has been pouring down over Denmark, most scientists agree that global temperature increases will intensify periods with summer drought already in 2075. The large scale project CLIMAITE, led by Risø DTU, has published its first synthesis paper in the renowned journal Global Change Biology, and the conclusion is perhaps a little surprising that the predicted increase in plant growth, due to more CO2 in the atmosphere is noticeably limited when...

2011-05-03 08:10:00

The production of wind energy in the U.S. over the next 30-50 years will be largely unaffected by upward changes in global temperature, say a pair of Indiana University Bloomington scientists who analyzed output from several regional climate models to assess future wind patterns in America's lower 48 states. Their report -- the first analysis of long-term stability of wind over the U.S. -- appears in this week's Proceedings of the National Academy of Sciences Early Edition. "The greatest...

2010-11-23 10:50:27

Current state-of-the-art global climate models predict substantial warming in response to increases in greenhouse gases such as carbon dioxide. The models, though, disagree widely in the magnitude of the warming we can expect. The disagreement among models is mainly due to the different representation of clouds. Some models predict that global mean cloud cover will increase in a warmer climate and the increased reflection of solar radiation will limit the predicted global warming. Other...

2010-11-08 09:08:38

Scientists have long known that atmospheric convection in the form of hurricanes and tropical ocean thunderstorms tends to occur when sea surface temperature rises above a threshold. The critical question is, how do rising ocean temperatures with global warming affect this threshold? If the threshold does not rise, it could mean more frequent hurricanes. According to a new study by researchers at the International Pacific Research Center (IPRC) of the University of Hawaii at Manoa (UHM), this...

2010-09-16 17:45:22

Scientists at the Carnegie Institution's Department of Global Ecology have taken a new approach on examining a proposal to fix the warming planet. So-called geoengineering ideas"”large-scale projects to change the Earth's climate"”have included erecting giant mirrors in space to reflect solar radiation, injecting aerosols of sulfate into the stratosphere making a global sunshade, and much more. Past modeling of the sulfate idea looked at how the stratospheric aerosols might affect...

2010-08-19 11:25:19

Scientists can now study climate change in far more detail with powerful new computer software released by the National Center for Atmospheric Research (NCAR).The Community Earth System Model (CESM) will be one of the primary climate models used for the next assessment by the Intergovernmental Panel on Climate Change (IPCC). The CESM is the latest in a series of NCAR-based global models developed over the last 30 years. The models are jointly supported by the Department of Energy (DOE) and...

Word of the Day
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.