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Latest Earth's atmosphere Stories

2009-05-07 12:04:16

U.S. and Swiss scientists say unusual atmospheric circulation might have caused the 1930s Dust Bowl and could also be responsible for other droughts. The researchers from the Institute for Atmospheric and Climate Science in Zurich, Switzerland; the Observatory and World Radiation Center in Davos, Switzerland, and the U.S. National Climatic Data Center in Asheville, N.C., said they used historical upper air data, reconstructions and model simulations to analyze atmospheric circulation during...

2009-04-23 08:26:27

Plants absorbed carbon dioxide more efficiently under the polluted skies of recent decades than they would have done in a cleaner atmosphere, according to new findings published this week in Nature.The results of the study have important implications for efforts to combat future climate change which are likely to take place alongside attempts to lower air pollution levels.The research team included scientists from the Centre for Ecology & Hydrology, the Met Office Hadley Centre, ETH...

2009-04-21 07:59:00

New research suggests intertwining of tropical cyclones, climate changeScientists at Harvard University have found that tropical cyclones readily inject ice far into the stratosphere, possibly feeding global warming.The finding, published in Geophysical Research Letters, provides more evidence of the intertwining of severe weather and global warming by demonstrating a mechanism by which storms could drive climate change. Many scientists now believe that global warming, in turn, is likely to...

2009-04-19 13:15:46

Atmospheric lead causes clouds to form more easily, could change pattern of rain and snow By sampling clouds -- and making their own -- researchers have shown for the first time a direct relation between lead in the sky and the formation of ice crystals that foster clouds. The results suggest that lead generated by human activities causes clouds to form at warmer temperatures and with less water. This could alter the pattern of both rain and snow in a warmer world.The lead-laden clouds come...

2009-04-14 14:03:02

The U.S. space agency says the Earth's ozone layer should eventually recover from damage caused by chlorofluorocarbons but it has been changed forever. New research by National Aeronautics and Space Administration scientists suggests the ozone layer of the future is unlikely to look much like the past because greenhouse gases are changing the dynamics of the Earth's atmosphere by altering the circulation of stratospheric air masses from the tropics to the poles. NASA researchers said that, in...

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2009-04-11 12:12:31

Earth's ozone layer should eventually recover from the unintended destruction brought on by the use of chlorofluorocarbons (CFCs) and similar ozone-depleting chemicals in the 20th century. But new research by NASA scientists suggests the ozone layer of the future is unlikely to look much like the past because greenhouse gases are changing the dynamics of the atmosphere. Previous studies have shown that while the buildup of greenhouse gases makes it warmer in troposphere "“ the level of...

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2009-04-01 09:20:00

Future stratospheric ozone losses from unregulated launches will eventually exceed ozone losses from CFCs The global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth's stratospheric ozone layer in the decades to come, according to a new study by researchers in California and Colorado. Future ozone losses from unregulated rocket launches will eventually exceed ozone losses due to chlorofluorocarbons, or CFCs, which stimulated the...

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2009-03-24 10:15:00

Two new greenhouse gases are accumulating in the atmosphere, according to an international research team led by scientists from the Scripps Institution of Oceanography in the US and CSIRO scientist, Dr Paul Fraser, from the Centre for Australian Weather and Climate Research. Nitrogen trifluoride (NF3) and sulfuryl fluoride (SO2F2) are powerful greenhouse gases that have recently been discovered to be growing quickly in the global background atmosphere. These gases are used in industrial...

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2009-02-24 10:35:00

ESA's Venus Express spacecraft has observed an eerie glow in the night-time atmosphere of Venus. This infrared light comes from nitric oxide and is showing scientists that the atmosphere of Earth's nearest neighbor is a temperamental place of high winds and turbulence. Unfortunately, the glow on Venus cannot be seen with the naked eye because it occurs at the invisible wavelengths of infrared. ESA's Venus Express, however, is equipped with the Visible and Infrared Thermal Imaging Spectrometer...

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2009-02-10 20:10:00

The challenge: very precisely measure carbon dioxide in Earth's atmosphere all over the world, especially near Earth's surface. For Orbiting Carbon Observatory Principal Investigator David Crisp of NASA's Jet Propulsion Laboratory, Pasadena, Calif., and his team, the logical solution was an Earth-orbiting spacecraft. But shopping for a science instrument that could accomplish these objectives was no easy task. In this case, "shopping" meant finding the right technology to meet the mission's...


Latest Earth's atmosphere Reference Libraries

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2012-05-12 09:22:57

Atlantis launched from Kennedy Space Center on November 3, 1994 at 11:59 AM EST and landed at Edwards AFB on November 14 at 7:33 AM PST. The shuttle orbited 174 times at an altitude of 164 nautical miles at an inclination of 57 degrees and travelled 4.5 million miles. The mission lasted 10 days, 22 hours, 34 minutes, and 2 seconds. This mission further advanced efforts to collect data about sun's energy output, chemical makeup of the Earth's middle atmosphere, and how these factors affect...

Weather Reference Library
2012-05-08 20:51:43

Important things to know when it comes to weather are the terms that a meteorologist uses on the television, radio or on a weather website.  The first term is Return flow. Sometimes you will hear a meteorologist use this term. The best way to understand this is to look at a weather map. When you see a High pressure center which is the blue H, look to the western side of that high pressure. This is where the warm moist air starts moving from the south back towards the north, which is why it...

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2009-07-06 17:01:44

Arctic haze is a phenomenon that occurs in the atmosphere at high latitudes in the Arctic due to air pollution. What distinguishes Arctic haze from haze found elsewhere, is the ability of its chemical ingredients to endure in the atmosphere for a longer period of time compared to other pollutants. Due to limited snowfall, rain, or turbulent air to displace pollutants from the polar air in the spring, Arctic haze can continue for more than a month in the northern atmosphere. Arctic haze was...

Earth's Atmosphere
2004-10-19 04:45:44

Earth's Atmosphere -- Earth's atmosphere consists of nitrogen (78.1%) and oxygen (20.9%), with small amounts of argon (0.9%), carbon dioxide (variable, but around 0.035%), water vapor, and other gases. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation and reducing temperature extremes between day and night. 75% of the atmosphere exists within 11km of the planetary surface. Temperature and the Atmospheric Layers The temperature of the Earth's atmosphere...

Sky
2004-10-19 04:45:44

Sky -- Although almost everyone have seen it, sky is hard to be defined precisely. Generally, sky is the space seen when one looks upward from the surface of a planet. Some people define sky as the denser gaseous zone of a planet's atmosphere. Clouds, rainbows and weather all occur amongst a planet's sky. In astronomy, the sky is divided into many regions, called constellations. The blue colour of the daytime sky results from the selective scattering of light rays. When the sunlight...

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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