Discover and read the best of Twitter Threads about #ArcticFires

Most recents (24)

Analyses of organic matter aerosol optical depth, based on 🛰️ obs, showing large-scale smoke transport around N Hemisphere from #Siberia #ArcticFires (& #CaliforniaFires) between 1 Aug to 2 Sept 2020. @CopernicusECMWF Atmosphere Monitoring Service @ECMWF atmosphere.copernicus.eu
#ArcticFires were very active in first week of August 2020 but reduced to more usual activity for most of the month with slight increase as summer came to an end. #opendata from #CopernicusAtmosphere Global Fire Assimilation System based on MODIS 🛰️ obs confluence.ecmwf.int/display/CKB/CA… ImageImageImage
Read 5 tweets
Peak #ArcticFires activity seems a long time ago but Sakha Republic & Chukotka🇷🇺still experiencing above average daily total #wildfire intensity for late August in #CopernicusAtmosphere GFAS data to 24/08. #TerraMODIS🛰️imagery shows continuation on 25/08 go.nasa.gov/3ldIDKV ImageImageImageImage
#Wildfire activity in other parts of #Siberia has been relatively low all summer. Krasnoyarsk & Irkustk have been experiencing increased daily total intensity over last 2 weeks close to 2003-2018 mean & << 2019. ImageImage
Global Fire Assimilation System data based on MODIS obs (only Terra available since 17 August)➡️ confluence.ecmwf.int/display/CKB/CA…
Latest maps➡️ atmosphere.copernicus.eu/charts/cams/fi…
NASA imagery➡️ go.nasa.gov/3ldIDKV
Read 6 tweets
Greatly reduced #ArcticFires over the last week in #CopernicusAtmosphere GFAS data as the season starts to change although latest map atmosphere.copernicus.eu/charts/cams/fi… shows several continuing active #wildfires in #Siberia south of the #ArcticCircle ImageImage
Daily total #Siberia #wildfire intensity for Sakha Republic &Chukotka Autonomous Oblast showing some increase at or slightly > 2003-2018 mean in recent days but << the activity earlier in August ImageImage
Read 4 tweets
Cloud affecting NASA #AquaMODIS🛰️obs go.nasa.gov/3h6C7mA & daily intensity of #ArcticCircle #wildfires possibly leading to last few days of 2020 #ArcticFires if following 2019 & 2003-2018 average in #CopernicusAtmosphere Monitoring Service GFAS data confluence.ecmwf.int/display/CKB/CA… ImageImageImage
Comparing #wildfires in different regions of #Siberia & far eastern #Russia since between 1 June to 11 August shows #ArcticFires differences between 2020 & 2019: most activity in Sakha Republic (&Chukotka) but much less activity in Krasnoyarsk & Irkutsk. ImageImage
Read 5 tweets
New precedent in scale & intensity of #Siberia/#Arctic #wildfires compared to previous 17 years in the #Copernicus Atmosphere Monitoring Service GFAS data based on MODIS obs confluence.ecmwf.int/display/CKB/CA… (145 Mt CO2 in July 2020 vs. 182 Mt CO2 total for 2019) #ArcticFires ImageImageImage
Daily cumulative estimated #ArcticCircle #wildfire carbon emissions for 2020 (red) were already increasing faster than in 2019 (gold) but increased significantly in the 2nd half of July Image
Comparing the annual total estimated #wildfire CO2 emissions for the #ArcticCircle from 2003 to 2020 (up to 31 July 2020) shows that this year is already the highest for the region in the GFAS dataset. Image
Read 7 tweets
Massive smoke plume with very high values of total column carbon monoxide transported from #ArcticFires across Bering Strait to Alaska & Canada over next few days in latest @CopernicusECMWF Atmosphere Monitoring Service @ECMWF forecast atmosphere.copernicus.eu/charts/cams/ca… @CopernicusEU
Interesting to note low pressure system to north of Chukchi & East Siberian Seas leading to recirculation of smoke back to Siberia via N Pole. Leading edge could reach northern Greenland towards the weekend.
Read 4 tweets
First, (very) rough, look at estimated surface deposition of black carbon over the #Arctic Ocean from 21-24 July with #CopernicusAtmosphere Monitoring Service model output. Clear increase (> 0.1 mg/m2) across Chukchi Sea region originating from #Siberian #ArcticFires Image
*units are micrograms per square metre
Read 3 tweets
Friday deep dive into #ArcticFires of Siberia, focusing on the 8,000+ fires detected by MODIS & VIIRS satellites between May 2020 and mid-July 2020 at latitudes above 70°N. (A thread). Image
Important to note that Arctic fire regimes are not novel, but seem to be increasing in number. Here, @iccinet Climate Change Intern and @StOlaf undergraduate student, @BradenPohl, maps fires for last 3 years in northern Krasnoyarsk Krai and Sakha Republic. Image
Braden and @jj_fain created this fire density heatmap in @qgis, highlighting that certain areas tend to burn regularly, like northern Krasnoyarsk Krai, along Lena River, south of Yana Bay, and south of East Siberian Sea. Human-caused fires? Start looking here. Image
Read 6 tweets
Another big increase in #ArcticCircle daily total #wildfire radiative power on 21 July, well above 2019 max daily total, with July total estimated carbon emissions almost catching up to 2019. #CopernicusAtmosphere Monitoring Service GFAS data confluence.ecmwf.int/display/CKB/CA… #ArcticFires ImageImageImage
#AquaMODIS visible imagery for 22 July shows the spatial extent of the fire activity is continuing, producing vast amounts of smoke, & another possible increase in the fire monitoring tomorrow. Image
Read 4 tweets
New spatial analysis of wildfires across the Arctic in May/June 2020, and how they compare to the satellite record (2003-2020). What is burning? Are there peat fires? What about permafrost? 🔥🛰️thread in collab with @m_parrington @CopernicusECMWF #ArcticFires [1/9]
The Arctic Circle is an ecologically arbitrary line, so I also investigated fires burning north of the treeline, using @NSIDC's tundra & boreal forest boundary, a better representation of the Arctic Zone. May/June 2020 saw 10x more fires than 2003-18 average for this zone. [2/9]
Using a Global Landcover dataset, we see corroborating evidence that the spike in fire activity in 2019/20 occurred in both the boreal forest (tree cover) and tundra (herbaceous & shrub cover) ecosystems of the Arctic Circle [3/9]
Read 10 tweets
High values of aerosol optical depth from #Siberia/#Arctic #wildfires crossing Laptev Sea & heading toward Svalbard🇳🇴 in the coming days in latest #CopernicusAtmosphere Monitoring Service forecast atmosphere.copernicus.eu/charts/cams/ae… @CopernicusECMWF @ECMWF @CopernicusEU #ArcticFires
Note also possible plume of dust aerosol originating from Caspian Sea region and reaching NW Russia.
Read 4 tweets

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