Posts Tagged ‘satellite mapping’
The first map that tracks the motion of Antarctica’s glaciers
Scientists have produced what they say is the first complete map of how the ice moves across Antarctica.
Built from images acquired by radar satellites, the visualisation details all the great glaciers and the smaller ice streams that feed them…
It should aid the understanding of how the White Continent might evolve in the warmer world being forecast by climatologists.
“This is like seeing a map of all the oceans’ currents for the first time. It’s a game changer for glaciology,” said lead author Dr Eric Rignot. “We are seeing amazing flows from the heart of the continent that had never been described before”…
The map incorporates billions of radar data points collected between 1996 and 2009 by satellites belonging to Europe, Canada and Japan.
Ice drains from the interior via huge glaciers that calve icebergs into the sea…Ice velocities on the new map range from just few cm/year near places where the ice divides into different paths, to km/year on fast-moving glaciers and the ice shelves that float out from the edges of the continent.
RTFA for history and details. Interesting stuff.
China bureaucrats disguise illegal roadway as vegetable patch

Motorway being covered with mud to stop government spotting it by satellite
The new road, in a suburb of Xiangyang city, Hubei province, was built illegally earlier this year and was quickly spotted on satellite maps of the area.
Instructions were sent from Beijing to tear up the road and return the land to local farmers, but instead of complying, local officials decided to try to hide the road. They covered its surface with plastic sheets and then spread a thin layer of soil over the top, in which they planted vegetables. The ruse worked for about a month, until angry farmers, whose land had been seized, reported the trick to the government.
“The workers turned up in May, dug up our crops and just laid the road over our land,” said Mao Huancheng, a farmer. “They never gave us any compensation for the land. And then they spread the earth to try to avoid a national inspection and trick the higher-up officials,” he added.
The deputy director of the district said that the road was a vital link to a new industrial park, which was supposed to attract investment to the area. However, it has now been demolished and the local government faces a hefty fine.
Not the first attempt at camouflaged logistics.
Last September, officials in the central province of Shaanxi attempted to make an area blighted by stone quarries look like it had been planted with trees by painting the mountains green. “This is very advanced, we learned how to do it from the internet,” said a spokesman from the local mining office.
Har. Must be watching Clean Coal commercials.





