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NCAR & UCAR News Center |
Jan. 29, 2009 |
HIAPER Pole to Pole Observations (HIPPO) - Multimedia Gallery
(teleconference, videos, photos)
HIPPO is a three-year field project to make the most extensive airborne sampling of carbon dioxide and other greenhouse gases in the atmosphere to date, from the Arctic to the Antarctic. Study results will help scientists understand the behavior of these gases in the atmosphere and lead to improved predictions about climate change.
| News Release
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Laura Pan(NCAR, ACD) |
Jan. 21, 2009 |
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Steven S. Brown (NOAA) |
Nov. 19, 2008 |
Atmospheric Chemistry after Dark
(47 minutes)
Brown, a scientist in NOAA's Earth System Research Laboratory, explores new findings on several aspects of nighttime chemical transformations that are relevant in the troposphere.
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NCAR MOPITT team |
Apr. 30, 2008 |
MOPITT Instrument - Multimedia Gallery
(illustrations and videos)
MOPITT (Measurements of Pollution in the Troposphere) is an instrument flying on NASA's EOS Terra spacecraft. NCAR scientists and their international colleagues developed and run MOPITT to measure the global distributions of carbon monoxide (CO) and methane (CH4) in the troposphere. CO also serves as a tracer for other kinds of air pollution.
| News Release
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Sasha Madronich (ACD) |
Nov. 12, 2007 |
Atmospheric Pollution from Megacities
(55 minutes)
Air pollution from megacities not only affects local air quality, but spills over into surrounding regions, possibly to the entire globe. There are consequences for human health, cultivated and natural ecosystems, visibility, atmospheric energy budgets, weather modification, and climate. He points out areas of uncertainty where further research is needed. Recent studies show that dilution is not a solution.
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Guy Brasseur (NCAR, ESSL) |
Oct. 18, 2007 |
The Story of Ozone in Our Atmosphere: A Success Story
(58 minutes)
Brasseur provides a historical perspective on the discovery of the chemical nature of this gas and its ability to protect the biosphere from harmful ultraviolet solar radiation. It took decades for scientists to understand how ozone is formed and how it is destroyed. Brasseur discusses the role of observations, laboratory studies, and modeling in successfully addressing the problem of the Antarctic ozone hole, which was created by the use of industrially manufactured chlorofluorocarbons. The efforts to reduce ozone depletion have also had a protective effect on the climate, making this is a story of success for both the scientific community and policymakers.
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Jose Luis Jimenez (CIRES, University of Colorado Boulder) |
Oct. 17, 2007 |
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NCAR & UCAR News Center |
Jun. 21, 2007 |
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