Unprecedented #wildfire activity in the #Arctic Circle in June 2019, with notable widespread fires in Sakha Republic, Russia for much of the last 3 weeks, as estimated with #Copernicus Atmosphere Monitoring Service GFAS data based on MODIS 🛰️obs confluence.ecmwf.int/display/CKB/CA
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Difficult to say based on the active fire or visible imagery data, possibly lightning or self-combustion - may have other thoughts...
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Estimated June total #wildfire #CO2 emissions for the #Arctic Circle from 2003-2019. 50 Mt CO2 is equivalent to 2017 national fossil fuel CO2 emissions for Bulgaria, Hungary and Sweden edgar.jrc.ec.europa.eu/overview.php?v
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Is there any evidence for increasing levels of black carbon being transported to and deposited over the marginal zones of the Arctic sea ice which will have a melting snow cover on it?
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There is evidence of deposition of black carbon/ash to sea ice from these fires in Siberia see thread from
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Multiple wildfires
north of the @_Arctic_Circle, Sakha Republic, #Russia
, with ash possibly reaching sea ice in the Laptev Sea and East Siberian Sea, lowering the sea ice albedo and increasing melt rates. 
Full-size: flic.kr/p/2gjMkYD #RemoteSensing #SeaIce 1/2
north of the @_Arctic_Circle, Sakha Republic, #Russia, with ash possibly reaching sea ice in the Laptev Sea and East Siberian Sea, lowering the sea ice albedo and increasing melt rates. Full-size: flic.kr/p/2gjMkYD #RemoteSensing #SeaIce 1/2Show this thread
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17 years of #Copernicus Atmosphere Monitoring Service GFAS data for June total #boreal & #Arctic #wildfires shows high inter-annual variability & how unprecedented recent Siberia fires have been @CopernicusECMWF @ECMWF @CopernicusEU @CopernicusEMS @ArcticFocus @DrTELS
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