Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-20T03:42:34.218Z Has data issue: false hasContentIssue false

34. The present state of the electric field theory of magnetic storms and aurorae

Published online by Cambridge University Press:  18 July 2016

L. Block*
Affiliation:
Royal Institute of Technology, Stockholm, Sweden

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The main features of the electric field theory are outlined. The theory should be considered as a first approximation. The validity of the approximations and assumptions introduced is discussed.

Some model experiments on the theory are described. It is impossible to construct an entirely true model of nature in the laboratory. The similarities and differences between nature and model are discussed.

The mechanism of the model seems to be described very well by the theory. Some experimental results, which because of the complicated phenomena cannot be predicted by the theory, are compared with observations in nature. As far as we can see at present, the agreement between nature and model is astonishingly good.

Type
Part V: Electromagnetic State in Interplanetary Space
Copyright
Copyright © Cambridge University Press 1958 

References

1. Alfvén, H. Cosmical Electrodynamics (Oxford University Press, 1950), ch. vi.Google Scholar
2. Alfvén, H. Tellus , 7, 50, 1955.Google Scholar
3. Åström, E. Experimental Investigation on an Electron Gas in a Magnetic Field , Transactions of the Royal Institute of Technology, Stockholm, no. 22, 1948, p. 70.Google Scholar
4. Massey, H. S. W., Bohm, D., Burhop, E. H. S. and Williams, R. M. The Characteristics of Electrical Discharges in Magnetic Fields , ed. Guthrie, A. and Wakerling, R. K., (McGraw Hill, 1949), ch. 9.Google Scholar
5. Webster, H. F. J. Appl. Phys. 26, 1386, 1955.CrossRefGoogle Scholar
6. Bostick, W. H. Experimental study of ionized matter projected across a magnetic field , Univ. of California Radiation Lab., UCRL-4695, 1956.Google Scholar
7. Malmfors, K. G. Ark. Mat. Astr. Fysik , 34b, no. 1, 1946.Google Scholar
8. Block, L. Tellus , 7, 65, 1955.Google Scholar
9. Block, L. Tellus , 8, 234, 1956.Google Scholar
10. Alfvén, H. Tellus , 9, 92, 1957.Google Scholar
11. Seaton, M. J. J. Atmos. Terr. Phys. 4, 285, 1953.Google Scholar
12. Vestine, E. H., Lange, I., Laporte, L. and Scott, W. E. The geomagnetic field, its description and analysis , Cam. Inst. Publ., no. 580 (Washington D.C., 1947).Google Scholar
13. Vegard, L. Handbuch der Experimentalphysik , xxv:1, (Leipzig, 1928), p. 404.Google Scholar
14. Carlheim-Gyllenskiöld, , Exploration Intern. Polaires 1882–3. Exp. Suédoise. Aurore boréale , Kungl. Vet. Akad. (Stockholm, 1886).Google Scholar