by Staff Writers
Melbourne (UPI) Jun 13, 2012
Australian scientists say the global positioning system can make weather forecasting more accurate by providing a new type of temperature observation.
Researchers at the Royal Melbourne Institute of Technology and the Bureau of Meteorology said data from GPS and low-Earth orbit satellites can improve real-time weather observations and help cross-calibration of instruments.
The way the atmosphere affect GPS signals gives them information on important temperature profiles, they said.
"We are actually able to measure the amount of bending in the GPS beam as it passes through the atmosphere," RMIT Professor John Le Marshall said.
"We can then use that knowledge to more accurately measure atmospheric temperatures and use this to improve temperature fields and calibrate other satellite readings."
"This extra information, in the data-sparse Southern Hemisphere, is now making our forecasts more accurate. GPS can fill that gap. It's revolutionary technology. It's the missing link."
Using this technology, the Australian Bureau of Meteorology is delivering forecasts of the same accuracy 10 hours earlier, TG Daily reported Wednesday.
GPS Applications, Technology and Suppliers
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Apple fends off Android challenge with maps, Siri
San Francisco (AFP) June 11, 2012
Apple said Monday it was revving up the software running its coveted gadgets, training its sights on the China market - and tossing Google Maps aside in the process. Apple used its Worldwide Developers Conference (WWDC) to show off upgrades to the software running iPhones, iPads, and iPod Touch devices including its own Siri-infused mapping technology and features tailored for Chinese users ... read more
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