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Latest Interferometric synthetic aperture radar Stories

Mapping Forest Biomass To Understand The Global Carbon Cycle
2013-02-05 10:54:59

ESA Satellite radar data are being used to map Earth´s vital resources. The latest advances and applications of the POLinSAR remote sensing technique were highlighted at a conference held last week. Polarimetric InSAR — or POLinSAR — is a remote sensing technique based on polarimetric information in Synthetic Aperture Radar (SAR) images. With this technique, a radar sends polarised pulses towards the target, and the information in the signals backscattered from Earth...

Volcanic Eruptions Predicted With Satellite Imagery
2012-11-05 14:28:53

Brett Smith for redOrbit.com - Your Universe Online In a new report published in the journal Geophysical Research Letters, two scientists showed they may now be able to detect signs of an impending volcanic eruption by analyzing satellite imagery. Using Interferometric Synthetic Aperture Radar (InSAR) over the active volcanoes in Indonesia's west Sunda arc, the vulcanologists from University of Miami uncovered evidence that showed the ℠inflation´ of several volcanoes prior to...

Mapping Landslides In The Swiss Alps
2012-09-26 08:41:24

Archived radar data from the Envisat mission are playing an important role in mapping landslides in Switzerland. The mission´s vast archives continue to prove useful for mapping ground deformation. Landslides are a natural hazard of special relevance in Alpine regions. This ground displacement can severely damage human lives and infrastructure. Earth-observing satellites — specifically those equipped with radars — can help scientists to map and monitor ground movement....

Envisat Captures Nea Kameni Volcano Movement
2012-05-23 03:23:31

[ Watch the Video ] Archived data from the Envisat satellite show that the volcanic island of Santorini has recently displayed signs of unrest. Even after the end of its mission, Envisat information continues to be exploited for the long-term monitoring of volcanoes. Santorini is a picturesque Greek island in the south Aegean Sea and the most active volcanic center in the South Aegean Volcanic Arc. The island is the site of one of history´s largest volcanic eruptions, about 3600...

GPS And Space-based Radar Help Calculate Sierra Nevada’s Age, Growth
2012-05-07 10:29:51

Researchers studying the highest mountain range in the continental United States have been able to detect the rate at which it is growing and perhaps how old the mountains that are found there using new technology from space. The team of researchers from University of Nevada´s Geodetic Laboratory in Reno and University of Glasgow in the UK, said the Sierra Nevada mountains are steadily growing at the rate of about 1 inch every two decades across the entire 400-mile-long range on the...

2012-05-04 13:39:55

Nevada Geodetic Lab uses GPS and radar for most precise measurements over entire mountain range From the highest peak in the continental United States, Mt. Whitney at 14,000 feet in elevation, to the 10,000-foot-peaks near Lake Tahoe, scientific evidence from the University of Nevada, Reno shows the entire Sierra Nevada mountain range is rising at the relatively fast rate of 1 to 2 millimeters every year. "The exciting thing is we can watch the range growing in real time," University of...

Keeping An Eye – From The Sky – On Volcanoes
2012-03-28 03:43:40

The importance of global and frequent data coverage of volcanoes was highlighted in a recent article published in Science. Satellites are finding that volcanoes previously thought to be dormant are showing signs of unrest. As the 2010 eruption of Eyjafjallajökull in Iceland demonstrated, volcanic eruptions can have consequences over large regions, so the global perspective offered by satellite systems is vital for monitoring volcanoes in remote and inaccessible terrain....

Image 1 - Satellites Map Earth’s Vital Resources
2012-03-23 03:34:25

Recent studies show that satellite radar data can be exploited to map forest height, 3D forest structure and their natural or anthropogenic disturbance with high spatial resolution and accuracy. Since forests assist in removing carbon dioxide from the atmosphere, this could prove to be an important tool for assessing carbon stocks and monitoring our planet´s resources. Polarimetric InSAR — or Pol-InSAR — is a remote sensing technique based on polarimetric information in...

New Research Shows Venice Is Now Slipping And Sinking
2012-03-21 11:37:05

Once thought to have stabilized, new measurements reveal that Venice continues to sink slowly. For a while, global rising sea levels were thought to be the cause for the growing waters in the famous canals. Yehuda Bock, a geodesist with Scripps Institution of Oceanography at the University of California, San Diego, in La Jolla, California, said about the rising: “Venice appears to be continuing to subside, at a rate of about 2 millimeters a year.” “It´s a small...


Word of the Day
out-herod
  • In the phrase to out-herod Herod, to be more violent than Herod (as represented in the old mystery plays); hence, to exceed in any excess of evil.
Herod refers to 'Herod the Great,' a Roman client king and 'a madman who murdered his own family and a great many rabbis.' According to the OED, the term is 'chiefly with allusion to Shakespeare's use' in Hamlet.
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