NASA ANNOUNCES PRESS CONFERENCES AT AGU MEETING
NASA researchers will present findings on various topics at the American Geophysical Union Meeting at the Moscone Convention Center (MCC), San Francisco, December 8-12.
THE MARTIAN CLIMATE, AS SEEN BY MARS ODYSSEY
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Item 1
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Odyssey's sensors have measured the movement of carbon dioxide as it accumulates as frost at the winter poles and evaporates during the spring. Intriguing images of this dry ice will be shown. The Odyssey camera has obtained the most detailed map yet of the south Polar Regions. Measurements of water ice in the soil suggest a complex layering, indicating recent global climate change. Enigmatic hydrogen deposits at warm mid- latitudes will be discussed. Results from the radiation monitoring experiment show the level of radiation hazard that Mars-bound astronauts may face, including that from intense solar activity recently measured by the instrument. Press conference: Monday, December 8, noon EST. The associated session, P21A, is Tuesday, 11 a.m. EST in Room MCC 3002.
NASA LEARNING TO MONITOR CORAL REEF HEALTH FROM THE SKY
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Item 2
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Coral reef health may be accurately estimated from sensors on airplanes and satellites in the future, according to a NASA scientist who is the principal investigator in a collaborative project to develop a method to remotely sense coral health. Press Conference: Monday, December 08, 2003.
NASA MISSION TO JUPITER'S ICY MOONS
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Item 4
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NASA's Project Prometheus is developing plans for the Jupiter Icy Moons Orbiter (JIMO). It will orbit Callisto, Ganymede and Europa, the three planet-size moons of Jupiter that have ingredients necessary for life: water, energy and necessary chemicals. JIMO will be the first spacecraft powered by nuclear electric propulsion. Press conference: Monday, December 8, 5 p.m. EST. The associated session, P11C, is Monday, December 8, 1:20 p.m. EST in Room MCC 3009.
A SEASON IN THE LIFE OF THE ANTARCTIC OZONE HOLE
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Item 3
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NASA's Total Ozone Mapping Spectrometer (TOMS) instruments have been looking at ozone and making daily maps of the ozone content of the atmosphere. TOMS data has shown the evolution of the 'ozone hole' since 1979. This instrument was an essential factor in establishing international agreements that led to the banning of ozone destroying chlorofluorocarbons. Press conference: Monday, December 8, 4 p.m. EST. The associated sessions, A11A, A11G, begin on today at 11 a.m. EST in Room MCC 3018. Poster Session A21D is Tuesday, December 9, 11:30 a.m. EST on MCC Level 2.
ICESAT CAPTURES EARTH IN 3-D
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Item 5
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NASA's Ice, Cloud and land Elevation Satellite (ICESat) is sending home spectacular 3-D views of Earth's polar ice sheets, clouds, mountains, forestlands and even fires, all to help scientists understand how our changing climate affects life on Earth. Press conference: Tuesday, December 9, 6 p.m. EST. Special sessions C31A and C31D detail these results on Wednesday, December 10, at 11 a.m. EST in Room MCC 3010.
NASA SCIENTISTS DISCOVER SPRING THAW MAKES A DIFFERENCE
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Item 6
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Using a suite of microwave remote sensing instruments
aboard satellites, scientists at NASA's Jet Propulsion
Laboratory (JPL), Pasadena, Calif., and the University of
Montana, Missoula, have observed a recent trend of earlier
thawing across the northern high latitudes.
This regional thawing trend, advancing almost one day a year
since 1988, has the potential to alter the cycle of
atmospheric carbon dioxide intake and release by vegetation
and soils across the region, potentially resulting in changes
in Earth's climate. The lengthening growing season appears to
be promoting more carbon uptake by the vegetation than is
being released into the atmosphere for the region. How long
this trend will occur depends on whether soils continue to
remain cold and wet.
HOW URBANIZATION IS IMPACTING CLIMATE
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Item 7
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Scientists estimate by 2025, 60 percent of the world's population will live in cities. The urban environment can impact several aspects of the natural earth system. This press conference will highlight some of the impact of urbanization on climate change including temperature changes, rainfall modification, and aerosol constituents. The press conference is Thursday, December 11 at 6 p.m. EST. Associated sessions: U51A on Friday, December 12 at 11 a.m. EST in Room MCC 3001- 3003 and U51C on Friday December 12 at 1:20 p.m. EST in Room MCC 3001-3003.
SCIENTISTS "RECONSTRUCT" EARTH'S CLIMATE OVER PAST MILLENNIA
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Item 8
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Using the perspective of the past few millennia, speakers will discuss the latest research involving climate reconstructions and different models. Discussions include how researchers used a climate model that included solar radiation changes, volcanic eruptions, and natural internal variability to arrive at a more accurate look at Earth's changing climate. Press conference: Tuesday, December 9, 5 p.m. EST. The associated session, PP51, begins at 11 a.m. EST, on Friday, December 12, in Room MCC 3004.
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