LONG-TERM AIR TEMPERATURE VARIATIONS IN THE NORTHWEST OF TAIMYR AND IN THE LOWER YENISEI IN THE 20th CENTURY

摘要

Tendencies are analyzed of long-term surface air temperature variations in the northwest of Taimyr (using data from Chelyuskin and Dickson polar stations over 1932-2001 and 1916-2001, respectively) and downstream of the Yenisei River (using data from Turukhansk and Bor/Stony Tunguska meteorological stations over 1911-2001 and 1935-2001, respectively). The history of observations at these stations is considered. It is found that in Central Siberia, when moving from north to south, a tendency for temperature fall gives way to that for temperature rise. In general, long-term temperature variations are cyclic. Warming is clearly pronounced in the spring-summer period and is less significant in the fall and winter. It is shown that with the shorter observation period under study, the tendency found can change significantly to become the opposite.