Internal reconnection for northward interplanetary magnetic field

Masakazu Watanabe, Konstantin Kabin, George J. Sofko, Robert Rankin, Tamas I. Gombosi, Aaron J. Ridley, C. R. Clauer

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field (IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated ionospheric signatures and show that the internal reconnection occurs not only between a summer lobe and a winter lobe field line but also between a summer lobe field line and a closed field line. The latter internal reconnection drives a pair of convection cells circulating outside the polar cap in the winter ionosphere. In this paper, we refer to these convection cells as "reciprocal cells" and the corresponding reconnection as reciprocal cell reconnection. The reciprocal cells are coupled to the so-called lobe cells that are driven by magnetopause reconnection between an IMF line and a summer lobe field line (lobe cell reconnection); these lobe cells circulate inside the polar cap in the summer ionosphere. The reciprocal cell reconnection converts an overdraped lobe field line to a relaxed lobe field line, while the lobe cell reconnection converts a relaxed lobe field line to an overdraped lobe field line. Thus the reciprocal cell reconnection reciprocates with the lobe cell reconnection through the exchange of magnetic flux.

Original languageEnglish
Article numberA06210
JournalJournal of Geophysical Research: Space Physics
Volume110
Issue numberA6
DOIs
Publication statusPublished - Jun 2005
Externally publishedYes

Fingerprint

Magnetopause
interplanetary magnetic fields
magnetic fields
lobes
magnetopause
Ionosphere
Magnetic fields
magnetic field
summer
ionosphere
cells
convection
Magnetic flux
Magnetohydrodynamics
winter
magnetohydrodynamics
tilt
convection cells
polar caps
ionospheres

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Cite this

Watanabe, M., Kabin, K., Sofko, G. J., Rankin, R., Gombosi, T. I., Ridley, A. J., & Clauer, C. R. (2005). Internal reconnection for northward interplanetary magnetic field. Journal of Geophysical Research: Space Physics, 110(A6), [A06210]. https://doi.org/10.1029/2004JA010832

Internal reconnection for northward interplanetary magnetic field. / Watanabe, Masakazu; Kabin, Konstantin; Sofko, George J.; Rankin, Robert; Gombosi, Tamas I.; Ridley, Aaron J.; Clauer, C. R.

In: Journal of Geophysical Research: Space Physics, Vol. 110, No. A6, A06210, 06.2005.

Research output: Contribution to journalArticle

Watanabe, M, Kabin, K, Sofko, GJ, Rankin, R, Gombosi, TI, Ridley, AJ & Clauer, CR 2005, 'Internal reconnection for northward interplanetary magnetic field', Journal of Geophysical Research: Space Physics, vol. 110, no. A6, A06210. https://doi.org/10.1029/2004JA010832
Watanabe, Masakazu ; Kabin, Konstantin ; Sofko, George J. ; Rankin, Robert ; Gombosi, Tamas I. ; Ridley, Aaron J. ; Clauer, C. R. / Internal reconnection for northward interplanetary magnetic field. In: Journal of Geophysical Research: Space Physics. 2005 ; Vol. 110, No. A6.
@article{f359ff34a6c44d50af530bd6067a57b9,
title = "Internal reconnection for northward interplanetary magnetic field",
abstract = "On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field (IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated ionospheric signatures and show that the internal reconnection occurs not only between a summer lobe and a winter lobe field line but also between a summer lobe field line and a closed field line. The latter internal reconnection drives a pair of convection cells circulating outside the polar cap in the winter ionosphere. In this paper, we refer to these convection cells as {"}reciprocal cells{"} and the corresponding reconnection as reciprocal cell reconnection. The reciprocal cells are coupled to the so-called lobe cells that are driven by magnetopause reconnection between an IMF line and a summer lobe field line (lobe cell reconnection); these lobe cells circulate inside the polar cap in the summer ionosphere. The reciprocal cell reconnection converts an overdraped lobe field line to a relaxed lobe field line, while the lobe cell reconnection converts a relaxed lobe field line to an overdraped lobe field line. Thus the reciprocal cell reconnection reciprocates with the lobe cell reconnection through the exchange of magnetic flux.",
author = "Masakazu Watanabe and Konstantin Kabin and Sofko, {George J.} and Robert Rankin and Gombosi, {Tamas I.} and Ridley, {Aaron J.} and Clauer, {C. R.}",
year = "2005",
month = "6",
doi = "10.1029/2004JA010832",
language = "English",
volume = "110",
journal = "Journal of Geophysical Research",
issn = "0148-0227",
number = "A6",

}

TY - JOUR

T1 - Internal reconnection for northward interplanetary magnetic field

AU - Watanabe, Masakazu

AU - Kabin, Konstantin

AU - Sofko, George J.

AU - Rankin, Robert

AU - Gombosi, Tamas I.

AU - Ridley, Aaron J.

AU - Clauer, C. R.

PY - 2005/6

Y1 - 2005/6

N2 - On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field (IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated ionospheric signatures and show that the internal reconnection occurs not only between a summer lobe and a winter lobe field line but also between a summer lobe field line and a closed field line. The latter internal reconnection drives a pair of convection cells circulating outside the polar cap in the winter ionosphere. In this paper, we refer to these convection cells as "reciprocal cells" and the corresponding reconnection as reciprocal cell reconnection. The reciprocal cells are coupled to the so-called lobe cells that are driven by magnetopause reconnection between an IMF line and a summer lobe field line (lobe cell reconnection); these lobe cells circulate inside the polar cap in the summer ionosphere. The reciprocal cell reconnection converts an overdraped lobe field line to a relaxed lobe field line, while the lobe cell reconnection converts a relaxed lobe field line to an overdraped lobe field line. Thus the reciprocal cell reconnection reciprocates with the lobe cell reconnection through the exchange of magnetic flux.

AB - On the basis of magnetohydrodynamic simulation results for northward interplanetary magnetic field (IMF) and significant dipole tilt, we describe internal reconnection processes that occur earthward of the magnetopause subsequent to magnetopause reconnection. We discuss the associated ionospheric signatures and show that the internal reconnection occurs not only between a summer lobe and a winter lobe field line but also between a summer lobe field line and a closed field line. The latter internal reconnection drives a pair of convection cells circulating outside the polar cap in the winter ionosphere. In this paper, we refer to these convection cells as "reciprocal cells" and the corresponding reconnection as reciprocal cell reconnection. The reciprocal cells are coupled to the so-called lobe cells that are driven by magnetopause reconnection between an IMF line and a summer lobe field line (lobe cell reconnection); these lobe cells circulate inside the polar cap in the summer ionosphere. The reciprocal cell reconnection converts an overdraped lobe field line to a relaxed lobe field line, while the lobe cell reconnection converts a relaxed lobe field line to an overdraped lobe field line. Thus the reciprocal cell reconnection reciprocates with the lobe cell reconnection through the exchange of magnetic flux.

UR - http://www.scopus.com/inward/record.url?scp=33747317691&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33747317691&partnerID=8YFLogxK

U2 - 10.1029/2004JA010832

DO - 10.1029/2004JA010832

M3 - Article

AN - SCOPUS:33747317691

VL - 110

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

SN - 0148-0227

IS - A6

M1 - A06210

ER -