Joseph Henry and John Henry Lefroy A common 19th century vision of auroral research
Article first published online: 3 JUN 2011
©1989. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 70, Issue 15, pages 227–240, 11 April 1989
How to Cite
1989), Joseph Henry and John Henry Lefroy A common 19th century vision of auroral research, Eos Trans. AGU, 70(15), 227–240, doi:10.1029/89EO00118.(
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Research on solar-terrestrial relationships today relies primarily on in situ space data. These data, however, cover only a short period of about 30 years. Many solar and related phenomena vary on much longer time scales. For the study of these, parameters such as sunspots, magnetic activity, auroral occurrence, or other proxy data are required. Historical records of aurora are particularly useful in this connection.