ИСТИНА

The Baikal region includes the Republic of Buryatia, Irkutsk Region, Trans-Baikal Territory. Climate change is important because Lake Baikal is a UNESCO World natural Heritage Site. It is the deepest lake in the world and the largest natural reservoir of fresh water. Climate of Baikal region is sharply continental and associated with large amplitude of annual temperature (near 700C). Regular winter is frost and clear without precipitation. Most precipitation observed during warm period of the year. The aim of this work is to assess the nature of climate warming in the Baikal region. To study the temporal and spatial dynamics of climate change in this area, we selected 27 meteorological stations regular network ROSHYDROMET. For the Baikal region is a common tendency to increase in surface air temperature. Since 1970, the average increase in temperature was 1°C. However, it should be emphasized that the temperature increase is made up of a plurality of different directions fluctuations. We construct the graphs to analyze the dynamics of average monthly temperature of the warmest (July) and coldest (January) month of the year. The average January temperature varies considerably, but a clear trend of increasing or decreasing the temperature does not add up. Since 1970, the July temperature rose on average by 1.2°C. Since 1990, anomalies have only positive sign for most of the stations. Analysis of the constructed maps of air temperature anomalies for July and January for the period 2000-2012 did not reveal a single spatial feature of formation of anomalies in the region. On some winter maps, the area of Lake Baikal is an area of increased anomalies that can be explained by the increase in the warming effect of the lake as a result of late establishment of ice.