NASA satellites show vegetation decline in the Amazon

NASA's Aqua satellite was one of the satellites used for the study

A new study founded by NASA and published on November 11 in Proceedings of the National Academy of Sciences, shows a 13-year decline in vegetation in the eastern and southeastern Amazon. While the decline was small, the area affected encompassed 5.4 million square kilometres, equivalent to over half the area of continental United States.

NASA satellites were fundamental in the study and were used to measure the "greenness" of the vegetation in the Amazon. Moreover, they were used in a new and innovative way.

Publishing Date: 

Wed, 17/12/2014 - 09:26

US Tornado Outbreak seen from Space: NASA animation

Tracking Tornados

On 29 April 2014, a new animation of the storm system which spawned 31 tornados affecting seven states across the Central and Southern United States from 27 to 28 April 2014 has been released by NASA using data collected from a NOAA’s GOES East Satellite and NASA’s Aqua Satellite. This data coupled with local weather observations and computer models is able to give forecasters real time information about developing weather situations.

Publishing Date: 

Fri, 02/05/2014 - 17:47

Canada: Capturing wildfires in Quebec

QUEBEC NASA MODIS image, 19 June 2013

Satellites can easily detect what is not visible to the human eye. NASA's Aqua satellite acquired imagery of a large wildfire burning in Western Quebec on 19 June 2013, near the shoreline of Hudson Bay. By using its MODIS (Moderate Resolution Imaging Spectroradiometer), the satellite could detect hot spots with unusually warm surface temperatures associated with fire - indicated by the red outlines.


Publishing Date: 

Fri, 21/06/2013 - 11:51

Satellite Monitoring Data Should Be Widely Available

Participants of a meeting on 24 August 2011 on monitoring and control of natural and human-induced emergency situations in the 'Rossiyskaya gazeta' press centre demonstrated that satellite imagery data has been increasingly widely used for emergencies monitoring and response. One of the technologies of thermal anomalies monitoring is the detection using images in the infra-red band of the MODIS camera of Terra/Aqua satellites. Burning areas are analysed using detailed SPOT 4/5 images, and damage to the forest as a result of fire is evaluated.


Publishing Date: 

Wed, 31/08/2011 - 15:19

NASA Earth Observations Investigate the Impact of the 2011 Japanese Earthquake and Tsunami

On March 11, 2011, the Great Tohoku Earthquake occurred approximately 70 kilometers off the coast of Japan. This magnitude 9.0 earthquake was closely followed by a massive tsunami that reached 7 meters in height. Using NASA Earth Observation Systems (EOS), we will assess the damage to the area impacted by this disaster. Landsat 5 Thematic Mapper (TM), MODIS on Aqua and Terra, and ASTER will be used to create normalized difference vegetation indices (NDVIs) and land classifications of the area.


Publishing Date: 

Wed, 10/08/2011 - 15:20

Remote Sensing - Wildfire Gallery

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