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Latest Atmospheric sciences Stories

methane seep
2014-08-26 05:01:55

redOrbit Staff & Wire Reports - Your Universe Online Geologists from Mississippi State University, Brown University, the US Geological Survey (USGS) and Maryland-based Earth Resources Technology, Inc. have discovered more than 500 bubbling methane vents on the seafloor of the northern part of the US Atlantic margin, various media outlets reported on Sunday. Previously, only three of these vents (which are also known as seeps) had been identified, but according to Terrence McCoy of...

sunspots
2014-08-22 03:19:38

Fabio Bergamin, ETH Zurich The average temperature on Earth has barely risen over the past 16 years. ETH researchers have now found out why. And they believe that global warming is likely to continue again soon. Global warming is currently taking a break: whereas global temperatures rose drastically into the late 1990s, the global average temperature has risen only slightly since 1998 – surprising, considering scientific climate models predicted considerable warming due to rising...

2014-08-20 23:04:05

National laboratories, including the Lawrence Livermore Laboratory, are teaming up with academia and industry to unleash high performance computing (HPC) on climate change through a new project funded by the Department of Energy's Office of Science. Livermore, California (PRWEB) August 20, 2014 High performance computing (HPC) will be used to develop and apply the most complete climate and Earth system model to address the most challenging and demanding climate change issues. Eight...

california Central Valley drought
2014-08-19 02:30:55

Rosalie Murphy, JPL Earth Science and Technology Directorate About 60 percent of California is experiencing "exceptional drought," the U.S. Drought Monitor's most dire classification. The agency issued the same warning to Texas and the southeastern United States in 2012. California's last two winters have been among the driest since records began in 1879. Without enough water in the soil, seeds can't sprout roots, leaves can't perform photosynthesis, and agriculture can't be sustained....

Climate Impacts Of Arctic Sea Ice Loss To Be Investigated By NASA
2014-08-15 03:16:22

[ Watch The Video: NASA’s ARISE Arctic Mission Takes Shape ] Steve Cole, NASA A new NASA field campaign will begin flights over the Arctic this summer to study the effect of sea ice retreat on Arctic climate. The Arctic Radiation IceBridge Sea and Ice Experiment (ARISE) will conduct research flights Aug. 28 through Oct. 1, covering the peak of summer sea ice melt. ARISE is NASA's first Arctic airborne campaign designed to take simultaneous measurements of ice, clouds and the...

severe thunderstorms over South Carolina
2014-08-14 03:00:15

Ellen Gray, NASA's Goddard Space Flight Center Putting three radars on a plane to measure rainfall may seem like overkill. But for the Integrated Precipitation and Hydrology Experiment field campaign in North Carolina recently, more definitely was better. The three instruments, developed by the High Altitude Radar group at NASA's Goddard Space Flight Center in Greenbelt, Maryland, flew as part of the Global Precipitation Measurement (GPM) mission’s six-week ground-validation program...

2014-08-14 12:20:57

WASHINGTON, Aug. 14, 2014 /PRNewswire-USNewswire/ -- A new NASA field campaign will begin flights over the Arctic this summer to study the effect of sea ice retreat on Arctic climate. The Arctic Radiation IceBridge Sea and Ice Experiment (ARISE) will conduct research flights Aug. 28 through Oct. 1, covering the peak of summer sea ice melt. http://photos.prnewswire.com/prnvar/20081007/38461LOGO ARISE is NASA's first Arctic airborne campaign designed to take simultaneous measurements...

Dust And Microbes That Hitch Rides On It Influences Rain And Climate
2014-08-14 03:16:39

American Chemical Society Dusty air blowing across the Pacific from Asia and Africa plays a critical role in precipitation patterns throughout the drought-stricken western US. Today, a scientist will present new research suggesting that the exact chemical make-up of that dust, including microbes found in it, is the key to how much rain and snow falls from clouds throughout the region. This information could help better predict rain events, as well as explain how air pollution from a...

Trapped Giant Waves In The Atmosphere Trigger More Extreme Weather
2014-08-13 03:46:00

Potsdam Institute for Climate Impact Research (PIK) Weather extremes in the summer - such as the record heat wave in the United States that hit corn farmers and worsened wildfires in 2012 - have reached an exceptional number in the last ten years. Man-made global warming can explain a gradual increase in periods of severe heat, but the observed change in the magnitude and duration of some events is not so easily explained. It has been linked to a recently discovered mechanism: the...

antarctic ice sheet
2014-08-13 03:45:26

Kelly April Tyrrell, University of Wisconsin-Madison When the Intergovernmental Panel on Climate Change (IPCC) recently requested a figure for its annual report, to show global temperature trends over the last 10,000 years, the University of Wisconsin-Madison’s Zhengyu Liu knew that was going to be a problem. “We have been building models and there are now robust contradictions,” says Liu, a professor in the UW-Madison Department of Atmospheric and Oceanic Sciences and the Center...


Latest Atmospheric sciences Reference Libraries

Urban Heat Island
2013-04-02 15:35:21

An urban heat island (UHI) is a metropolitan area that is drastically warmer than its surrounding rural areas because of human activities. The phenomenon was first looked into and described by Luke Howard during the 1810s, although he wasn’t the one to name the phenomenon. The difference in temperature is normally bigger at night as opposed to during the day, and it most obvious when winds are weak. Seasonally, UHI is seen during the summer and the winter. The key cause of the urban heat...

Desertification
2013-04-02 09:46:56

Desertification is a form of land degradation in which a comparatively dry land area becomes more and more arid, normally losing its bodies of water along with its wildlife and vegetation. This is a result of a variety of factors, such as climate change and human activities. Desertification is an important global, ecological, and environmental issue. There is substantial controversy over the proper definition of the term “desertification”. The most broadly accepted of these is that of...

Climate Change
2013-04-01 11:05:27

Climate change is a substantial and lasting change in the statistical distribution of weather patterns over periods of time ranging from decades to millions of years. It might be a change in the average weather conditions, or in the distribution of weather around the average conditions. Climate change is a result of factors that include oceanic processes, biotic processes, variations in solar radiation received buy Earth, volcanic eruptions, and plate tectonics, and human induced alterations...

Weather Model Discussion:  How To Use Surface Dew-points For Weather Forecasting Purposes
2013-01-29 08:53:47

Surface Dew-points can play a huge role in weather forecasting. The first such role is that it helps determine the amount of moisture in the atmosphere for a given point. If we look at the current dew-point map above from January 28, 2013 we can note several things of interest. First, if we look at where the black circle is around the number 70, we can make note that this air right off the coast of Texas is at a dew point of 70F. The temperature outside must be above 70F, because the...

Weather Education - Air Mass Thunderstorms
2013-01-13 10:30:47

Air mass thunderstorms are found in marine time tropical air. In short they are also known as MT Thunderstorms. Air mass thunderstorms represent what is known as the common three stage thunderstorm development. This means that an air mass thunderstorm goes through the stages of Cumulus which is represented by the updrafts only being present; secondly it moves into the mature stage where it has both updrafts and downdrafts; finally it goes into the dissipating stage where you see only the...

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Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.