Nonlinear and nonstationary influences of geomagnetic activity on the winter North Atlantic Oscillation

• Published in: Journal of Geophysical Research
• Main Authors: Li, Yun, Lu, Hua, Jarvis, Martin J., Clilverd, Mark A., Bates, Bryson
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2011
• Subjects: Atmospheric Sciences; Gam; North Atlantic; North Atlantic oscillation
• Online Access: http://nora.nerc.ac.uk/id/eprint/15159/; https://nora.nerc.ac.uk/id/eprint/15159/1/jgrd17194.pdf; https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2011JD015822

The relationship between the geomagnetic aa index and the winter North Atlantic Oscillation (NAO) has previously been found to be nonstationary, being weakly negative during the early 20th century and significantly positive since the 1970s. The study reported here applies a statistical method called...