Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
Some of the Earth Observing System (EOS) satellites used for ARCTAS include Aura and Terra, along with the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), a joint project of NASA and the French space agency CNES (Centre National d'Études Spatiales).
Dr. Jacob adds, “NASA has invested a lot of resources in satellites that can be of value for diagnosing effects of climate change. Satellites orbit over poles with good coverage and good opportunity, but you really need to have aircraft observations supporting those to make good interpretations of what satellites are telling you." [NASA]
A second phase of the ARCTAS campaign takes place this summer from Cold Lake in Alberta, Canada, where flights will focus on measurements of emissions from forest fires especially in Eurasia and North America.
The Summer Phase of ARCTAS includes DC-8 flights from Palmdale, California, June 18-25, 2008, and from Cold Lake, Alberta, between June 26 and July 14, 2008.
Researchers want to know how the impact of naturally occurring fires in the region compares to the pollution associated with human activity at lower latitudes.
Understanding the relative influence of each is important to predictions of the Arctic's future climate.
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
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