Browsing Department of Physics and Technology by Author "Salminen, Antti"
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Assessing North Atlantic winter climate response to geomagnetic activity and solar irradiance variability
Maliniemi, Ville Aleksi; Asikainen, Timo; Salminen, Antti; Mursula, Kalevi (Peer reviewed; Journal article, 2019)Recent studies suggest a response in the North Atlantic winter circulation which lags by a couple of years with respect to sunspot maximum. This has been explained by two different top‐down mechanisms: a solar wind driven ... -
Comparing the effects of solar-related and terrestrial drivers on the northern polar vortex
Salminen, Antti; Maliniemi, Ville Aleksi; Asikainen, Timo; Mursula, Kalevi (Journal article; Peer reviewed, 2020)Northern polar vortex experiences significant variability during Arctic winter. Solar activity contributes to this variability via solar irradiance and energetic particle precipitation. Recent studies have found that ... -
Dependence of Sudden Stratospheric Warmings on Internal and External Drivers
Salminen, Antti; Asikainen, T.; Maliniemi, Ville Aleksi; Mursula, K. (Journal article; Peer reviewed, 2020)A sudden stratospheric warming (SSW) is a large-scale disturbance of the wintertime stratosphere, which occurs especially in the Northern Hemisphere. Earlier studies have shown that SSW occurrence depends on atmospheric ... -
Influence of Enhanced Planetary Wave Activity on the Polar Vortex Enhancement Related to Energetic Electron Precipitation
Asikainen, T.; Salminen, Antti; Maliniemi, Ville Aleksi; Mursula, K. (Journal article; Peer reviewed, 2020)The Northern polar vortex experiences considerable interannual variability, which is also reflected to tropospheric weather. Recent research has established a link between polar vortex variations and energetic electron ...