Main Article Content
New characteristics of PiB magnetic pulsations which are associated with the substorm in the local midnight sector are revealed from the recordings of a meridional network of ground stations. PiB's are observed during distortions of the auroral arc which enclose a local region of upward directed field-aligned current. An enhancement at about 0.3–0.4 Hz is shown to be a permanent feature of PiB's. In addition, a secondary amplitude maximum at about 1 Hz sometimes appears in the recordings far from the auroral zone. The generation of PiB pulsations in the Pi1 period range is located at auroral latitudes at a low altitude. Low-altitude electric fields and acceleration of auroral particles, low-altitude resonance cavities, and isotropic propagation of waves is discussed in the interpretation of PiB pulsations.
Authors who publish with this journal as of Vol. 63 agree to the following terms:
a. Authors share the copyright with this journal in equal parts (50% to the journal, 50% to the lead author), and grant the journal right of first publication, with the work after publication simultaneously licensed under Creative Commons Attribution License CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
b. Authors may enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal, and a reference to this copyright notice.
c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) during the submission process, as this can lead to productive exchanges and earlier and greater citation of published work and better sales of the copyright.
Authors retain copyright and grant the Journal of Geophysics right of first publication, with the work two years after publication simultaneously licensed under the Creative Commons BY-NC-ND 4.0 License that allows others to share the work (with an acknowledgment of the work's authorship and initial publication in this journal), except for commercial purposes and for creating derivatives.
Authors can enter into separate, additional, but non-commercial contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository, but not publish it in a book), with an acknowledgment of its initial publication in this journal.
Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as that can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
This journal is one of a handful of scholarly journals that publish original scientific works under CC BY-NC-ND 4.0 - the only Creative Commons license affording the authors' intellectual property absolute worldwide protection.
Journal of Geophysics is published under the scholar-publishers model, meaning authors do not surrender their copyright to us. Instead, and unlike corporate publishers like Elsevier or Springer Nature that resell copyright to third-parties for up to $80,000 (per paper, per transaction!), the Journal of Geophysics authors share copyright equally with this journal.
Therefore, all the proceeds from reselling copyright to third parties get shared to equal parts (50% to the journal, 50% to the lead author). Under the Berne Convention, this protection is an inheritable right that lasts for as long as the rightsholder lives + 50 years.
By submitting to this journal, the lead author, on behalf of all co-authors, grants permission to this journal to represent all co-authors in negotiating copyright sales and collecting proceeds. The lead author should negotiate with his/her co-authors the modalities of distributing the lead author's portion of the proceeds. Usually, this is per pre-agreed percentage of each co-author's contribution to creating the copyrighted work. (more...)
Block, L. (1978) A double layer review. Astrophys. Space Sci. SS:59-83
Carlqvist, P. (1972) On the formation of double layers in plasmas. Cosmic Electrodynamics 3:377-388
Coleman, P.J., McPherron, R.L. (1976) Substorm observations of magnetic perturbations and ULF waves at synchronous orbit by A TS-I and A TS-6. In: Knott and Battrick (Eds.) The Scientific Satellite Programme during the International Magnetospheric Study, pp. 345-365. D. Reidel Publ. Co., Dordrecht-Holland
Davis, T.N. (1978) Observed characteristics of auroral forms. Space Sci. Rev. 22:77-113
Frank, L.A., Ackerson, K.L. (1971) Observations of charged particle precipitation into the auroral zone. J. Geophys. Res. 76:3612-3643
Heacock, R.R. (1967) Two subtypes of type Pi micropulsations. J. Geophys. Res. 72:3905-3917
Heacock, R.R., Hunsucker, R.D. (1977) A study of concurrent magnetic field and particle precipitation pulsations, 0.005 to 0.5 Hz, recorded near College, Alaska. J. Atmos. Terr. Phys. 39:487-501
Lanzerotti, L.J., Fukunishi, H. (1974) Modes of magnetohydrodynamic waves in the magnetosphere. Rev. Geophys. Space Phys. 12:724-729
Nishida, A. (1964) Theory of irregular magnetic micropulsations associated with a magnetic bay. J. Geophys. Res. 69:947-954
Nishida, A. (1978) Geomagnetic diagnosis of the Magnetosphere. Springer, Berlin-Heidelberg-New York
Petelski, E.F., Fahleson, U., Shawhan, S.D. (1978) Models for quasi-periodic electric fields and associated electron precipitation in the auroral zone. J. Geophys. Res. 83:2489-2498
Potemra, T.A. (1978) Observation of Birkeland currents with the Triad satellite. Astrophys. Space Sci. 58:207-226
Quang, B.H., Wong, A.Y. (1976) Formation of potential double layers in plasmas. Phys. Rev. Lett. 37:1393-1396
Saito, T. (1969) Geomagnetic pulsations. Space Sci. Rev. 10:319-412
Saito, T., Sakurai, T., Koyama, Y. (1976) Mechanism of association between Pi2 pulsation and magnetospheric substorm. J. Atmos. Terr. Phys. 38:1265-1277
Stuart, W.F. (1974) A mechanism of selective enhancement of Pi2's by the plasmasphere. J. Atmos. Terr. Phys. 36:851-859
Swift, D.W. (1978) Mechanisms for the discrete aurora. A review. Space Sci. Rev. 22:35-75
Torven, S., Babic, M. (1975) Current chopping space charge layers in a low pressure arc plasma. In: Proc. 12th International Conference on Phenomena in ionized gases. American Elsevier Publ. Co., New York
Torven, S., Andersson, D. (1978) Observations of electric double layers in a magnetized plasma column. TRIT A-EPP-78-12. Royal Institute of Technology, Stockholm
Untiedt, J., Pellinen, R., Kuppers, F., Opgenoorth, H.J., Pelster, W.D., Baumjohann, W., Ranta, H., Kangas, J., Czechowsky, P., Heikkila, W.J. (1978) Observations of the initial development of an auroral and magnetic substorm at magnetic midnight. J. Geophys. 45:41-65