On the climatic changes of the surface air temperature in the White Sea region

Abstract

Analysis of the monthly average surface air temperature (SAT) data of the White Sea showed its significant growth over the past decades. Against the background of this growth, the interannual variability was revealed with periods close to the periods of El Niño – Southern Oscillation (2-7 years) and the North Atlantic Oscillation (7-10 years). The effect of these oscillations on the interannual variability of the SAT of the White Sea is shown and the periods of their synchronization and desynchronization are found. During the periods of 1960s and from the second half of the 1980s to the mid-2010s during the El Niño events in the White Sea negative SAT anomalies were usually observed, and during the La Niña events – positive anomalies. In the period from the late 1960s to the mid-1990s, NAO had a strong positive effect on the SAT anomalies of the White Sea, in the second half of the 1990s this influence changed its sign, but from the beginning of the 2000s it became positive again.

White Sea catchment area: changes in soil temperature

“…The analysis of ground-air temperature data from long-term instrumental observations at the weather stations situated in the White Sea catchment area revealed the common traits and trends of the mean annual temperature in the study area during the 20th -early 21st centuries. The temperature rise from the beginning of the century towards the mid-1950s was succeeded by a cooling, but starting from 1989-1990 mean annual air temperatures in the White Sea catchment have positively deviated from the climate normal in almost all years [9,10]. Studies of among-year variations in mean annual soil surface temperature prove the same trends apply to this climatological parameter as well (Fig.…”

Impact of Warm Winters on the White Sea: In Silico Experiment

“…However, in recent years, such thick ice has not been observed at all due to warming. The more than 60-year observations of the near-surface air temperature in the White Sea reveal the significant positive trend (Serykh and Tolstikov 2020), i.e., he warming. This work shows that the observed increase in the near-surface air temperature is probably associated with the Global Atmospheric Oscillation (GAO); therefore, a large part of the atmosphere is involved in this process, and the same trends are revealed, for example, for the Barents Sea.…”

Climate change in the western part of the Russian Arctic in 1980–2021. Part 2. Soil temperature, snow, humidity

“…Это сильнейшее по амплитуде межгодовое колебание климата оказало глобальное влияние и могло послужить импульсом для перехода климатической системы Арктики из одного состояния в другое. Одной из причин этого является то, что при событиях Эль-Ниньо происходит понижение температуры Баренцева, Белого и Карского морей, а при событиях Ла-Нинья -повышение температуры в этих морях [24][25][26][27]. вследствие чего в этот период наблюдается рост ВП практически на всей территории западной части Российской Арктики (рис.…”