Inferring geoeffective solar variability signature in stratospheric and tropospheric Northern Hemisphere temperatures

V Dobrica, R Pirloaga, C Stefan… - Journal of Atmospheric and …, 2018 - Elsevier
Journal of Atmospheric and Solar-Terrestrial Physics, 2018Elsevier
Possible climatic effects related to geoeffective solar variability have been investigated by
means of long-term statistical correlations between stratospheric and tropospheric
temperature and solar/geomagnetic indices. Our previous work on solar variability signature
in the long records of air temperature in Europe showed that there were significant solar
signals at Schwabe (11 years) and Hale (22 years) solar cycles, with peak to trough
amplitudes of several degrees, and, respectively, of 0.6–0.8° C. In the present study we …
Abstract
Possible climatic effects related to geoeffective solar variability have been investigated by means of long-term statistical correlations between stratospheric and tropospheric temperature and solar/geomagnetic indices. Our previous work on solar variability signature in the long records of air temperature in Europe showed that there were significant solar signals at Schwabe (11 years) and Hale (22 years) solar cycles, with peak to trough amplitudes of several degrees, and, respectively, of 0.6–0.8 °C. In the present study we extend the investigation using NCEP/NCAR reanalyzed data for the temperate climate zone of the Northern Hemisphere (35–65ºN), from Earth's surface to stratospheric levels. Features of these signals are discussed on various spatial scales of the Northern Hemisphere and at specific levels in troposphere and stratosphere. The long-term statistical correlation between reanalyzed temperatures and indices describing solar variability (R, aa) is also investigated.
Elsevier
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