Vol­canic erup­tion in Chile: Change anal­y­sis

Vol­canic erup­tion in Chile: Change anal­y­sis
Credit: DLR (CC-BY 3.0)

Volcanic eruption in Chile: Change analysis

Change anal­y­sis based on da­ta from the radar satel­lite Sen­tinel-1, ob­tained be­fore (20/02/2015) and short­ly af­ter (04/03/2015) the Vil­lar­ri­ca in Chile erupt­ed on 3 March 2015. Blue: in­crease in radar backscat­ter­ing caused by the melt­ing of snow and ice; cyan: strong in­crease in radar backscat­ter­ing due to the ac­cu­mu­la­tion of vol­canic ma­te­ri­al; ma­gen­ta: re­duc­tion in radar backscat­ter­ing caused by an ac­cu­mu­la­tion of ash. DLR pro­duced the anal­y­sis dur­ing ac­ti­va­tion of the In­ter­na­tion­al Char­ter 'Space and Ma­jor Dis­as­ters'.

Change analysis based on data from the radar satellite Sentinel-1, obtained before (20/02/2015) and shortly after (04/03/2015) the Villarrica in Chile erupted on 3 March 2015. Blue: increase in radar backscattering caused by the melting of snow and ice; cyan: strong increase in radar backscattering due to the accumulation of volcanic material; magenta: reduction in radar backscattering caused by an accumulation of ash. DLR produced the analysis during activation of the International Charter 'Space and Major Disasters'.

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