File:Smoke cloud in Sakha Republic.jpg

English: After a short break due to meteorological conditions, wildfires have regained intensity in Siberia. On 5 August, the massive smoke resulting from multiple fires in Russia’s Sakha Republic reached an estimated area of more than 3.6M km², more than 1/3 of the area of Canada. This image, captured by one of the Copernicus Sentinel-2 satellites, provides a zoomed view of several wildfires around the city of Verkhoyansk which is currently engulfed in smoke. The town holds the record of the coldest temperature recorded on Earth (-67.8°C), but in June 2020 it also possibly reached the highest temperature ever recorded inside the Arctic Circle (38°C, a measurement still to be validated by WMO) The Copernicus Sentinel-2 mission, which is composed of two twin satellites, Sentinel-2A and Sentinel-2B, provides multispectral data over 13 different spectral bands with a maximum spatial resolution of 10m and a maximum revisit time of 5 days. Thanks to these specifications the Sentinel-2 data can be used for operational applications in the field of wildfire detection and monitoring.