Research of spatial-temporal dynamics of wildfires and cloudiness in the North-Asian region with using NOAA satellite data

摘要

The picture of spatial-temporal dynamics of wildfires and cloudy cover in the North-Asian region, besides local factors, in the certain degree is caused by solar-terrestrial connections. The spatial-temporal dynamics of wildfires and a cloudy cover for last five years in latitudinal range 40-74 degrees of the northern latitude are analyzed with using the data of the radiometer AVHRR/NOAA. It was shown that wildfires are observed from May till September, basically within three summer months with a maximum of the activity during the second half of summer. On a phase of a maximum of an 11-years cycle of solar activity the tendency of displacement of wildfires to the north is observed. For period since May before August the cloudiness decreases, but since August before September - increases. During the considered period the cloudiness moved from the northern and southern latitudes to a central zone (56-66 degrees of the northern latitude). This situation may be explained by latitudinal displacement of trajectories of the Atlantic cyclones on a phase of a maximum of solar activity.