NASA And Japan Release 2.95 Million Satellite Earth Images Free

Posted: Apr 5 2016, 10:34am CDT | by , in News | Latest Science News


NASA and Japan Release 2.95 Million Satellite Earth Images Free
In March 2016, ASTER captured the eruption of Nicaragua's Momotombo volcano with its visible and thermal infrared bands. The ash plume is depicted by the visible bands in blue-gray; the thermal infrared bands show hot lava flows in yellow and the active summit crater in white. Vegetation is red. Credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
  • NASA and Japan make Information about the Earth Freely available to the Public

The space agency NASA and the Japanese government have collaborated to make information about the earth in the form of the ASTER database freely available to the public.

A Japanese remote sensing device that had been affixed on NASA’s Terra spacecraft since before the turn of the millennium is now available for all free of cost.

The 16 years of data collected by the device will be placed at the disposal of the public. Japan’s ASTER instrument which gathers images of earth from far above is meant to observe and monitor the transformations that occur on the earth’s surface. 

The current database contains 2.95 million scenarios. Among the contents of this database may be included the Oklahoma landscape and the flooded landscape of Pakistan.

Also the active volcanoes of Iceland and the fires blazing in the wilderness of California are in its repertoire. Previously a limited fee had to be paid to observe this data of images. However, now it has been made accessible to the planet’s people free of cost. This change in policy is to be lauded. 

There will be many individuals who will be avidly looking into the data. Various algorithms have been used in the construction of this database. It was a joint effort that was spearheaded by the US and Japan.

The calibration of the instruments and products was a task yet it was achieved with a little elbow grease from both NASA and the Japanese authorities.

The surface temperatures of the land as well as the reflectance and height in topographical terms are caught on camera. Also the images are captured in both visible and infrared wavelengths.

The resolution in space will range from 50 to 300 feet. 99% of the landmasses of the earth will be covered by the ASTER database. 

The telescopes on board the space object use a double view to create a three dimensional image of each topographical feature. As for the spectral resolution, it is tops.

Monitoring all sorts of features ranging from glaciers, volcanoes, crops, clouds, wetlands, thermal pollution, coral reefs, soils and geological outcrops is the name of the game. The database from ASTER will be available for all and it will be such a boon for mankind. 

You can now access ASTER images online by visiting Land Processes Distributed Active Archive Center.

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<a href="/latest_stories/all/all/20" rel="author">Sumayah Aamir</a>
Sumayah Aamir (Google+) has deep experience in analyzing the latest trends.




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