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Ozone Hole Recovery Will Shape
Climate Change
A full recovery of the stratospheric ozone hole could
modify climate change in the Southern Hemisphere and even
amplify Antarctic warming, according to scientists from
the University of Colorado at Boulder, the National Oceanic
and Atmospheric Administration and NASA.
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NASA Launches Airborne Study
of Arctic Atmosphere, Air Pollution
The Arctic Research of the Composition of the Troposphere from
Aircraft and Satellites, or ARCTAS, is the most extensive
field campaign ever to investigate the chemistry of the Arctic's
lower atmosphere.
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NASA Research Opportunities
in Space and Earth Sciences (ROSES) – 2008
NASA's Science Mission Directorate is soliciting proposals
for supporting basic and applied research and technology across
a broad range of program elements. Funding through ROSES qualifies
researchers for high-end computing access at NASA.
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NASA Climate Change 'Peacemakers'
Aided Nobel Effort
It's not every day that a NASA scientist can wake up and think, "Hey,
I did something for world peace." But on Monday, Dec.
10, many NASA Earth scientists did exactly that.
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Local Sources Major Cause of
U.S. Near-Ground Aerosol Pollution
A new NASA study estimates that most ground-level particulate
pollution in the United States stems from the regional sources
in North America and only a small amount is brought to the
country from other parts of the world.
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MERRA: Modern Era
Retrospective-Analysis for Research and Applications
MERRA is a NASA reanalysis for the satellite era
using a new version of the Goddard Earth
Observing System Data Assimilation System Version
5 (GEOS-5).
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Convective Transport of Trace
Gases
Modeled transport of CO and CO2 is used to evaluate parameterizations
in GEOS-5 and to identify which parameters have the greatest
impact on trace gas transport in three different storms.
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20th Century Climate
Variations in Observations and Reanalyses
To study global warming trends and the pan-decadal variability
(PDV) in the Pacific, the dominating ENSO signal is removed
first. After this, GMAO investigations of observations
and reanalysis datasets show that the warming in the Pacific
basin is weaker than surrounding basins and that one of several
PDV regime shifts occurred during the 1990s.
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Observation Sensitivity
Calculations Using the Adjoint of the Gridpoint Statistical Interpolation
(GSI) Analysis System
NASA scientists have developed a new formulation of the GEOS-5
atmospheric data assimilation system to understand and improve the way
observations are used in weather and climate forecasts.
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NASA TC4 (Tropical Composition,
Cloud and Climate Coupling) Mission Investigates the Structure, Properties
and Processes in the Tropical Eastern Pacific
TC4 successfully concluded August 12, 2007.
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Dominant modes of instabilities
in the stratosphere
GMAO scientists use GEOS-5 to examine the leading modes of
weather instability in the stratosphere to help provide insight into observed
stratospheric dynamical phenomena.
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The Physics of Climate
Modeling
Climate is a large-scale phenomenon that emerges from complicated
interactions among small-scale physical systems. Yet despite this complexity,
climate models have demonstrated impressive successes.
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GEOS-5 Version 1.0 Available
The Goddard Earth Observing System Model, Version 5 (GEOS-5)
is a system of models integrated using the Earth System Modeling Framework
(ESMF).
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