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Yellow skies explained with CAMS data

CAMS Use Case

On the 16th of October, a particular phenomenon has been reported in many parts of the United Kingdom and France: the sky turned yellow, the sun turned red and a smell of burning filled the air for a few hours!


The reason? A combination of different natural events. On its way north towards Ireland, the tropical storm Ophelia brought particles of sand from the Sahara desert as well as the burning smell of the important forest fires that recently affected Portugal - which led to the activation of the Copernicus Emergency Management Service (EMS) Raping Mapping component.


CAMS Aerosol Forecasts allow to confirm this theory. The map below shows the important Aerosol Optical Depth (AOD) at 550 nm on the 16th of October (12 UTC), over Brittany and some parts of the UK.



Aerosol Optical Depth at 550 nm (provided by CAMS on the 16th of October2017)



CAMS forecasts also showed that this aerosol mixture was due to an important presence of desert dust, biomass burning and sea salt!


Learn more about the aerosol forecast products delivered by Copernicus by visiting the CAMS website.


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