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Satellite image captures re-build of an oil refinery, four years on from Japan earthquake

Images from UK-DMC2 show the oil refinery in the Miyagi prefecture immediately after the tsunami struck, and again 4 years on.
UK-DMC2 image.  DMCii 2015, all rights reserved. Click to enlarge

At the top is a satellite image from UK-DMC2, acquired 2 days after the tsunami struck the oil refinery in the Miyagi prefecture in North Eastern Japan.  The earthquake, which struck on 11 March 2011, was recorded as a magnitude-9.0 tremor and official reports noted that the tsunami waves reached heights of 40 metres and rushed nearly 10km inland in some areas.  You can see the plume of smoke from the main refinery in the top right area of the image.  The fire raged for 4 days before it was brought under control.  You can also see breaches in the sea defences in the bottom middle of the image, where the sea water surged through and flooded the low-lying areas beyond the sea wall.  

The second image is a revisit of the same area 4 years later, after extensive re-building has taken place.  

The satellite images were taken by SSTL's UK-DMC2 satellite, which carries a 22m multispectral imager.  The wide area imager is particularly useful for disaster relief planning and assessment as it provides a single image of a large area, and allows examination of a large infrastructures, transportation networks and coastlines.  Satellite images are also used as references to measure the extent of flooding and other damage, and this data can be used in planning re-building, with appropriate new defences and superstructures.  

Images from UK-DMC2 are made available through image provider DMCii, who supply satellite imagery products and services to a wide range of international customers from a unique constellation of satellites for agriculture, forestry mapping, disaster monitoring and many more markets. The example above is the Raw Image data from UK-DMC2, which is split into the 3 spectral bands (NIR, Red and Green) with Radiometric Calibration on all bands.  

DMCii supply satellite images to the International Disasters Charter.  

 

 
 

 

 

11 March 20150 Comments1 Comment

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