Air circulation in Russia has been changing in particular the North Atlantic Oscillation (NAO) influence, affected by global temperature increases. Extreme weather in 2020 produced 372 events causing significant damage to Russia’s economy and population.1
Regional climate changes have greater space-time irregularities most commonly surface air temperatures rising faster in high latitudes. However this changes further eastward with an increase in water vapour content in the troposphere with precipitation affecting rivers in the region e.g. increased run-off.
To understand the irregularities, the researchers analysed temperature and humidity by mapping monthly surface-air temperature between 2010 – 2020; and compared with the neighbouring European and far-Eastern regions. They used models developed by Russian researchers Dzerdzeevsky and Kononova analysing atmospheric processes such as Arctic cyclones and anti-cyclone movements, air pressures which tend to be 3-5 day events.2
They also analysed historical circulation data between 1948 to 2020. They found two major anomalies in the Siberian troposphere – a cold period from 1957 to 1969 and a warm period between 1999 to 2020. They generally found more space-time irregularities during 2015 to 2020 compared with 2010 and 2015. Across the region there were general trends of warming in spring in the north and cooling in the autumn. Their research confirms their hypotheses that circulation as well as human factors are contributing to climate change in Siberia and increasing climate risks.
Belousova E.P., Latysheva I.V., Loshchenko K.A., Olemskoy S.V. Current status of the temperature and humidity regime of the tropo- sphere in the Siberian sector in different circulation periods. Solar- Terrestrial Physics. 2023. Vol. 9, Iss. 1. P. 73–79. DOI:10.12737/stp-91202309
1. Doklad ob osobennostyakh klimata na territorii Rossiiskoi Federatsii za 2020 god [A Report on Climate Features on the Territory of the Russian Federation in 2020]. Moscow, Roshydromet Publ., 2021, 104 p. (In Russian).
2. Belousova E.P., Latysheva I.V., Loshchenko K.A., Olemskoy S.V. Current status of the temperature and humidity regime of the tropo- sphere in the Siberian sector in different circulation periods. Solar- Terrestrial Physics. 2023. Vol. 9, Iss. 1. P. 73–79. DOI:10.12737/stp-91202309