On 02 June two pyroCbs and one pyroCu formed in Russia. HIMAWARI-8 detected the smoke plume and pyroCb cloud, as well as the fire hot spot. The first pyroCb (54.2 N 106.5 E) occurred at 7:10 UTC and the second pyroCb (54 N 106.3 E) occurred at 8:40 UTC. In addition, a pyroCu (53.4 N 106.3 E) occurred at 8:50 UTC. Starting at 6:00 UTC on 02 June, the animation below shows visible (.63 μm) on the left and shortwave IR (3.9 μm) on the right (click image to play animation). In the shortwave IR images the red pixels indicate very hot IR brightness temperatures exhibited by the fire source region.
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HIMAWARI-8 0.63 µm visible channel (left) and 3.9 µm shortwave IR channel images (right) (click to play animation)
In addition, using HIMAWARI-8 10.4 μm IR channel the cloud-top IR brightness temperature could be found. The animation below, starting at 8:00 UTC on 02 June, shows the brightness temperature for the first pyroCb to be ~ -54ºC around 11:20 UTC (orange color enhancement) and the second pyroCb to be ~ -54ºC at 11:10 UTC (orange color enhancement). The pyroCu reached a minimum brightness temperate of -31ºC(teal color enhancement). The minimum brightness temperature for a pyroCb is -40ºC, meaning this is a pyroCu.
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HIMAWARI-8 10.4 µm IR channel images (click to play animation)
OMPS AI index images (courtesy of Colin Seftor) shows the transport of smoke on 3 June. The maximum AI index was found to be 6.1 at 54.8 N 114.8 E around 5:31 UTC. This is east of the original pyroCbs and pyroCu indicating an eastward movement of the smoke.
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OMPS Aerosol Index image on 03 June (click to enlarge)
