Tuesday, January 19, 2010

Nasa´s ASTER Images of Haiti Earthquake



Images from outerspace were taken of Haiti in the days following the earthquake and compared with images taken one year earlier. Landslides in the mountainous regions are noted upon close inspection but since the pictures come from outerspace, buildings are not seen in the images.

From the article:

(PhysOrg.com) -- The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft captured this simulated natural color image of the Port-au-Prince, Haiti, area, Jan. 14, 2010, two days after a magnitude 7.0 earthquake struck the region and caused massive damage and loss of life.

The broad spectral coverage and high spectral resolution of ASTER provide scientists in numerous disciplines with critical information for surface mapping and monitoring of dynamic conditions and temporal change. Example applications include monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

Here is a Link to the article.
It also makes me think of an article in USA Today and the concern that the US has large budget deficits so unmanned technology such as ASTER may be the future of space exploration for the US. From the article:

But that was before huge federal deficits arrived, public support failed to show, and unmanned explorers scored successes — namely the Hubble telescope and Mars rovers Spirit and Opportunity, which are still sending back signals years after they were expected to expire.
So as we look to the next decade, what sort of human space exploration will we see?
"We are on a path that will not lead to a useful, safe human exploration program," former
Lockheed Martin chief Norman Augustine said when he testified to Congress in September about the blue-ribbon space exploration panel he chaired. "The primary reason is the mismatch between the tasks to be performed and the funds that are available to support those tasks."
You can also read more HERE.

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