Tuesday, March 26, 2013

Akashi Kaikyo Bridge


The Akashi Kaikyo Bridge (also called the Pearl Bridge), has the longest central span of any suspension bridge in the world, at 1991 meters. Located in Japan, and completed in 1998, it connects the city of Kobe with Iwaja on Awaji Island by crossing the busy Akashi Strait. The ASTER image was acquired December 8, 2009, covers an area of 15 by 18 km, and is located at 34.6 degrees north latitude, 135 degrees east longitude.

Photo credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Tuesday, March 19, 2013

Disaster Management from Space

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Floods are usually accompanied by cloudy skies making it difficult to monitor them from space. Using radar technology, the new GMES Sentinel-1 satellite is able to 'see' through clouds and rainfall to map emergency-stricken regions.

Video credit: ESA/DLR

Saturday, March 16, 2013

Shark Bay, Australia


Hamelin Pool Marine Nature Reserve is located in the Shark Bay World Heritage Site in Western Australia. It is one of the very few places in the world where living stromatolites can be found. These are the first living examples of structures built by cyanobacteria. These bacteria are direct descendants of the oldest form of photosynthetic life on earth, dating back 3,500 million years (Wikipedia). The image was acquired December 30, 2010, covers an area of 34 x 46 km, and is located at 26.4 degrees south latitude, 114.1 degrees east longitude.

Photo credit: NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Wednesday, March 13, 2013

Japan Earthquake Sensed by GOCE

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New studies have revealed that the massive earthquake that hit Japan on 11 March 2011 was also felt in space by ESA’s GOCE satellite. The massive earthquake sent ripples of sound – called infrasound – upwards through the atmosphere. These sound waves caused changes in air density that were detected by ESA’s GOCE gravity satellite as it crossed the wavefront.

Read full article: GOCE the First Seismometer in Orbit.

Video credit: ESA/IRAP/CNES/TU Delft/HTG/Planetary Visions

Tuesday, March 12, 2013

Japanese Earthquake Sensed from Space


The animation shows how the massive earthquake that hit Japan in 2011 caused ripples in the atmosphere. As sound waves from the earthquake traveled upwards, they caused changes in air density that were detected by ESA’s GOCE gravity satellite as it crossed the wavefront.

Video credit: ESA/IRAP/CNES/TU Delft/HTG/Planetary Visions