Press releases from the NASA centers and from NASA researchers.
La Ni�a Conditions Likely to Prevail This Fall, Winter
October 20 A repeat of last year's mild La Ni�a conditions, with a stormy
winter in the Pacific Northwest and a dry winter in the southwestern United
States, will be the likely outcome of sea-surface heights observed by
NASA's TOPEX/Poseidon satellite, according to Jet Propulsion Laboratory
scientists. The height of the sea surface over a given area is an
indicator of ocean temperature and other factors that influence climate. More
New Most Accurate Map of Antarctic Continent Released
October 18 The first high-resolution radar map of one of the most remote
and inaccessible parts of Earth ? Antarctica ? was released today by
NASA. The map, created from images taken by a NASA-launched Canadian
satellite called Radarsat, has answered some questions about the icy
continent and left scientists scratching their heads about what to make of
strange features never seen before. More
Ozone Hole Smaller Than Last Year
October 6 NASA satellite images reveal that the ozone hole has shrunk
since last year. Richard Peters, principal investigator of the Total Ozone
Mapping Spectrometer instrument that measured the ozone hole, said that the
ozone hole is still large, but it is smaller than it was last year. More
NASA Spacecraft Provides Direct Evidence ? Smoke Inhibits Rainfall
October 5 Smoke from forest fires has, for the first time, been proven
to inhibit rainfall, according to an analysis of data taken from NASA's
Tropical Rainfall Measuring Mission (TRMM) Spacecraft. Daniel Rosenfeld,
TRMM science team member, reports that the team has observed that smoke can
suppress precipitation almost completely in some areas. More
Scientists Look For Signs of Pollution in the Superhighway in the Sky
October 5 Increased air traffic at 35,000 feet could be detrimental to
the Earth's atmosphere according to scientists. Knowing how much
airliners and rockets contribute to ozone levels in the atmosphere is an
important factor in climate research said Anne Thompson of NASA's Goddard
Space Flight Center. More
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