1
|
DiBraccio GA, Romanelli N, Bowers CF, Gruesbeck JR, Halekas JS, Ruhunusiri S, Weber T, Espley JR, Xu S, Luhmann JG, Harada Y, Dubinin E, Poh GK, Brain DA, Curry SM. A Statistical Investigation of Factors Influencing the Magnetotail Twist at Mars. GEOPHYSICAL RESEARCH LETTERS 2022; 49:e2022GL098007. [PMID: 35865912 PMCID: PMC9286686 DOI: 10.1029/2022gl098007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
The Martian magnetotail exhibits a highly twisted configuration, shifting in response to changes in polarity of the interplanetary magnetic field's (IMF) dawn-dusk (B Y) component. Here, we analyze ∼6000 MAVEN orbits to quantify the degree of magnetotail twisting (θ Twist) and assess variations as a function of (a) strong planetary crustal field location, (b) Mars season, and (c) downtail distance. The results demonstrate that θ Twist is larger for a duskward (+B Y) IMF orientation a majority of the time. This preference is likely due to the local orientation of crustal magnetic fields across the surface of Mars, where a +B Y IMF orientation presents ideal conditions for magnetic reconnection to occur. Additionally, we observe an increase in θ Twist with downtail distance, similar to Earth's magnetotail. These findings suggest that coupling between the IMF and moderate-to-weak crustal field regions may play a major role in determining the magnetospheric structure at Mars.
Collapse
Affiliation(s)
| | - Norberto Romanelli
- NASA Goddard Space Flight CenterGreenbeltMDUSA
- Department of AstronomyUniversity of MarylandCollege ParkMDUSA
| | - Charles F. Bowers
- Department of Climate and Space Sciences and EngineeringUniversity of MichiganAnn ArborMIUSA
| | | | - Jasper S. Halekas
- Department of Physics and AstronomyThe University of IowaIowa CityIAUSA
| | | | - Tristan Weber
- NASA Goddard Space Flight CenterGreenbeltMDUSA
- Department of Physics and AstronomyHoward UniversityWashingtonDCUSA
| | | | - Shaosui Xu
- Space Sciences LaboratoryUniversity of CaliforniaBerkeleyCAUSA
| | | | - Yuki Harada
- Department of GeophysicsGraduate School of ScienceKyoto UniversityKyotoJapan
| | - Eduard Dubinin
- Max‐Planck‐Institute for Solar System ResearchGöttingenGermany
| | - Gang Kai Poh
- NASA Goddard Space Flight CenterGreenbeltMDUSA
- Catholic University of AmericaWashingtonDCUSA
| | - David A. Brain
- Laboratory for Atmospheric and Space PhysicsUniversity of ColoradoBoulderCOUSA
| | | |
Collapse
|
2
|
Holappa L, Buzulukova NY. Explicit IMF B y -Dependence of Energetic Protons and the Ring Current. GEOPHYSICAL RESEARCH LETTERS 2022; 49:e2022GL098031. [PMID: 35866060 PMCID: PMC9286478 DOI: 10.1029/2022gl098031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 05/24/2023]
Abstract
The most important parameter driving the solar wind-magnetosphere interaction is the southward (B z ) component of the interplanetary magnetic field (IMF). While the dawn-dusk (B y ) component of the IMF is also known to play an important role, its effects are usually assumed to be independent of its sign. Here we demonstrate for the first time a seasonally varying, explicit IMF B y -dependence of the ring current and Dst index. Using satellite observations and a global magnetohydrodynamic model coupled with a ring current model, we show that for a fixed level of solar wind driving the flux of energetic magnetospheric protons and the growth-rate of the ring current are greater for B y < 0 (B y > 0) than for B y > 0 (B y < 0) in Northern Hemisphere summer (winter). While the physical mechanism of this explicit B y -effect is not yet fully understood, our results suggest that IMF B y modulates magnetospheric convection and plasma transport in the inner magnetosphere.
Collapse
Affiliation(s)
- L. Holappa
- Space Physics and Astronomy Research UnitUniversity of OuluOuluFinland
- University of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - N. Y. Buzulukova
- University of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| |
Collapse
|
3
|
Liu YH, Hesse M, Li TC, Kuznetsova M, Le A. Orientation and Stability of Asymmetric Magnetic Reconnection X Line. JOURNAL OF GEOPHYSICAL RESEARCH. SPACE PHYSICS 2018; 123:4908-4920. [PMID: 30364510 PMCID: PMC6196328 DOI: 10.1029/2018ja025410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
The orientation and stability of the reconnection x line in asymmetric geometry is studied using three-dimensional (3-D) particle-in-cell simulations. We initiate reconnection at the center of a large simulation domain to minimize the boundary effect. The resulting x line has sufficient freedom to develop along an optimal orientation, and it remains laminar. Companion 2-D simulations indicate that this x line orientation maximizes the reconnection rate. The divergence of the nongyrotropic pressure tensor breaks the frozen-in condition, consistent with its 2-D counterpart. We then design 3-D simulations with one dimension being short to fix the x line orientation but long enough to allow the growth of the fastest growing oblique tearing modes. This numerical experiment suggests that reconnection tends to radiate secondary oblique tearing modes if it is externally (globally) forced to proceed along an orientation not favored by the local physics. The development of oblique structure easily leads to turbulence inside small periodic systems.
Collapse
Affiliation(s)
- Yi-Hsin Liu
- Department of Physics and Astronomy, Dartmouth College, Hanover, NH, USA
| | - M Hesse
- Department of Physics and Technology, University of Bergen, Bergen, Norway
- Southwest Research Institute, San Antonio, TX, USA
| | - T C Li
- Department of Physics and Astronomy, Dartmouth College, Hanover, NH, USA
| | - M Kuznetsova
- NASA-Goddard Space Flight Center, Greenbelt, MD, USA
| | - A Le
- Los Alamos National Laboratory, Los Alamos, NM, USA
| |
Collapse
|
4
|
Korth H, Johnson CL, Philpott L, Tsyganenko NA, Anderson BJ. A Dynamic Model of Mercury's Magnetospheric Magnetic Field. GEOPHYSICAL RESEARCH LETTERS 2017; 44:10147-10154. [PMID: 29263560 PMCID: PMC5726378 DOI: 10.1002/2017gl074699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/29/2017] [Accepted: 09/08/2017] [Indexed: 06/07/2023]
Abstract
Mercury's solar wind and interplanetary magnetic field environment is highly dynamic, and variations in these external conditions directly control the current systems and magnetic fields inside the planetary magnetosphere. We update our previous static model of Mercury's magnetic field by incorporating variations in the magnetospheric current systems, parameterized as functions of Mercury's heliocentric distance and magnetic activity. The new, dynamic model reproduces the location of the magnetopause current system as a function of systematic pressure variations encountered during Mercury's eccentric orbit, as well as the increase in the cross-tail current intensity with increasing magnetic activity. Despite the enhancements in the external field parameterization, the residuals between the observed and modeled magnetic field inside the magnetosphere indicate that the dynamic model achieves only a modest overall improvement over the previous static model. The spatial distribution of the residuals in the magnetic field components shows substantial improvement of the model accuracy near the dayside magnetopause. Elsewhere, the large-scale distribution of the residuals is similar to those of the static model. This result implies either that magnetic activity varies much faster than can be determined from the spacecraft's passage through the magnetosphere or that the residual fields are due to additional external current systems not represented in the model or both. Birkeland currents flowing along magnetic field lines between the magnetosphere and planetary high-latitude regions have been identified as one such contribution.
Collapse
Affiliation(s)
- Haje Korth
- The Johns Hopkins University Applied Physics LaboratoryLaurelMDUSA
| | - Catherine L. Johnson
- Department of Earth, Ocean and Atmospheric SciencesUniversity of British ColumbiaVancouverBritish ColumbiaCanada
- Planetary Science InstituteTucsonAZUSA
| | - Lydia Philpott
- Department of Earth, Ocean and Atmospheric SciencesUniversity of British ColumbiaVancouverBritish ColumbiaCanada
| | - Nikolai A. Tsyganenko
- Institute and Faculty of PhysicsSaint Petersburg State UniversitySaint PetersburgRussia
| | | |
Collapse
|
5
|
|
6
|
|
7
|
|
8
|
|
9
|
Crooker NU, Siscoe GL, Toffoletto FR. Reply [to “Comment on ‘A tangent subsolar merging line’ by N. U. Crooker et al.”]. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/90ja02348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Maezawa K. Magnetospheric convection induced by the positive and negativeZcomponents of the interplanetary magnetic field: Quantitative analysis using polar cap magnetic records. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja081i013p02289] [Citation(s) in RCA: 282] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
11
|
|
12
|
Ogilvie KW, Scudder JD, Vasyliunas VM, Hartle RE, Siscoe GL. Observations at the planet Mercury by the Plasma Electron Experiment: Mariner 10. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja082i013p01807] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
13
|
McDiarmid IB, Budzinski EE, Wilson MD, Burrows JR. Reverse polarity field-aligned currents at high latitudes. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja082i010p01513] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
Fedder JA, Lyon JG, Slinker SP, Mobarry CM. Topological structure of the magnetotail as a function of interplanetary magnetic field direction. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94ja02577] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
15
|
Domingo V, Page DE, Wenzel KP. Energetic and relativistic electrons near the polar magnetopause. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja082i016p02327] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
16
|
Crooker NU, Luhmann JG, Spreiter JR, Stahara SS. Magnetopause merging site asymmetries. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja090ia01p00341] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
17
|
|
18
|
|
19
|
Burton RK, McPherron RL, Russell CT. An empirical relationship between interplanetary conditions andDst. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja080i031p04204] [Citation(s) in RCA: 1007] [Impact Index Per Article: 83.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Kamide Y, Winningham JD. A statistical study of the ‘instantaneous’ nightside auroral oval: The equatorward boundary of electron precipitation as observed by the Isis 1 and 2 satellites. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja082i035p05573] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
21
|
Reiff PH, Spiro RW, Hill TW. Dependence of polar cap potential drop on interplanetary parameters. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja086ia09p07639] [Citation(s) in RCA: 356] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
22
|
Kamide Y, Burch JL, Winningham JD, Akasofu SI. Dependence of the latitude of the cleft on the interplanetary magnetic field and substorm activity. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja081i004p00698] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
23
|
Hones EW, Akasofu SI, Wolcott JH, Bame SJ, Fairfield DH, Meng CI. Correlated observations of several auroral substorms on February 17, 1971. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja081i010p01725] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
24
|
Gonzalez WD. Comment on “A tangent subsolar merging line” by N. U. Crooker et al. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/90ja02347] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
25
|
Wang Y, Wei FS, Feng XS, Zhang SH, Zuo PB, Sun TR. Energetic electrons associated with magnetic reconnection in the magnetic cloud boundary layer. PHYSICAL REVIEW LETTERS 2010; 105:195007. [PMID: 21231178 DOI: 10.1103/physrevlett.105.195007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Indexed: 05/30/2023]
Abstract
Here is reported in situ observation of energetic electrons (∼100-500 keV) associated with magnetic reconnection in the solar wind by the ACE and Wind spacecraft. The properties of this magnetic cloud driving reconnection and the associated energetic electron acceleration problem are discussed. Further analyses indicate that the electric field acceleration and Fermi-type mechanism are two fundamental elements in the electron acceleration processes and the trapping effect of the specific magnetic field configuration maintains the acceleration status that increases the totally gained energy.
Collapse
Affiliation(s)
- Y Wang
- SIGMA Weather Group, State Key Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Science, Beijing 100049, China
| | | | | | | | | | | |
Collapse
|
26
|
Dorelli JC, Bhattacharjee A, Raeder J. Separator reconnection at Earth's dayside magnetopause under generic northward interplanetary magnetic field conditions. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja011877] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- John C. Dorelli
- EOS Space Science Center; University of New Hampshire; Durham New Hampshire USA
| | | | - Joachim Raeder
- EOS Space Science Center; University of New Hampshire; Durham New Hampshire USA
| |
Collapse
|
27
|
Phan TD, Gosling JT, Davis MS, Skoug RM, Øieroset M, Lin RP, Lepping RP, McComas DJ, Smith CW, Reme H, Balogh A. A magnetic reconnection X-line extending more than 390 Earth radii in the solar wind. Nature 2006; 439:175-8. [PMID: 16407946 DOI: 10.1038/nature04393] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2005] [Accepted: 10/31/2005] [Indexed: 11/09/2022]
Abstract
Magnetic reconnection in a current sheet converts magnetic energy into particle energy, a process that is important in many laboratory, space and astrophysical contexts. It is not known at present whether reconnection is fundamentally a process that can occur over an extended region in space or whether it is patchy and unpredictable in nature. Frequent reports of small-scale flux ropes and flow channels associated with reconnection in the Earth's magnetosphere raise the possibility that reconnection is intrinsically patchy, with each reconnection X-line (the line along which oppositely directed magnetic field lines reconnect) extending at most a few Earth radii (R(E)), even though the associated current sheets span many tens or hundreds of R(E). Here we report three-spacecraft observations of accelerated flow associated with reconnection in a current sheet embedded in the solar wind flow, where the reconnection X-line extended at least 390R(E) (or 2.5 x 10(6) km). Observations of this and 27 similar events imply that reconnection is fundamentally a large-scale process. Patchy reconnection observed in the Earth's magnetosphere is therefore likely to be a geophysical effect associated with fluctuating boundary conditions, rather than a fundamental property of reconnection. Our observations also reveal, surprisingly, that reconnection can operate in a quasi-steady-state manner even when undriven by the external flow.
Collapse
Affiliation(s)
- T D Phan
- Space Sciences Laboratory, University of California, Berkeley, California 94720, USA.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Park KS, Ogino T, Walker RJ. On the importance of antiparallel reconnection when the dipole tilt and IMFByare nonzero. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2004ja010972] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
29
|
Weimer DR, Ober DM, Maynard NC, Burke WJ, Collier MR, McComas DJ, Ness NF, Smith CW. Variable time delays in the propagation of the interplanetary magnetic field. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001ja009102] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. R. Weimer
- Mission Research Corporation; Nashua New Hampshire USA
| | - D. M. Ober
- Mission Research Corporation; Nashua New Hampshire USA
| | - N. C. Maynard
- Mission Research Corporation; Nashua New Hampshire USA
| | - W. J. Burke
- Air Force Research Laboratory Space Vehicles Directorate; Hanscom AFB Massachusetts USA
| | - M. R. Collier
- NASA/Goddard Space Flight Center; Greenbelt Maryland USA
| | | | - N. F. Ness
- Bartol Research Institute; Newark Delaware USA
| | - C. W. Smith
- Bartol Research Institute; Newark Delaware USA
| |
Collapse
|
30
|
Weimer DR. An improved model of ionospheric electric potentials including substorm perturbations and application to the Geospace Environment Modeling November 24, 1996, event. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000604] [Citation(s) in RCA: 282] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
31
|
Extended magnetic reconnection at the Earth's magnetopause from detection of bi-directional jets. Nature 2000; 404:848-50. [PMID: 10786785 DOI: 10.1038/35009050] [Citation(s) in RCA: 190] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Magnetic reconnection is a process that converts magnetic energy into bi-directional plasma jets; it is believed to be the dominant process by which solar-wind energy enters the Earth's magnetosphere. This energy is subsequently dissipated by magnetic storms and aurorae. Previous single-spacecraft observations revealed only single jets at the magnetopause--while the existence of a counter-streaming jet was implicitly assumed, no experimental confirmation was available. Here we report in situ two-spacecraft observations of bi-directional jets at the magnetopause, finding evidence for a stable and extended reconnection line; the latter implies substantial entry of the solar wind into the magnetosphere. We conclude that reconnection is determined by large-scale interactions between the solar wind and the magnetosphere, rather than by local conditions at the magnetopause.
Collapse
|
32
|
Fuselier SA, Trattner KJ, Petrinec SM. Cusp observations of high- and low-latitude reconnection for northward interplanetary magnetic field. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999ja900422] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
33
|
Freeman MP, Farrugia CJ. Solar wind input between substorm onsets during and after the October 18-20, 1995, magnetic cloud. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900204] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
34
|
Burke WJ, Weimer DR, Maynard NC. Geoeffective interplanetary scale sizes derived from regression analysis of polar cap potentials. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900031] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
35
|
Weimer DR. Models of high-latitude electric potentials derived with a least error fit of spherical harmonic coefficients. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja01755] [Citation(s) in RCA: 316] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
36
|
Scurry L, Russell CT, Gosling JT. A statistical study of accelerated flow events at the dayside magnetopause. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/94ja00793] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
37
|
Ahn BH, Kamide Y, Kroehl HW, Gorney DJ. Cross-polar cap potential difference, auroral electrojet indices, and solar wind parameters. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/91ja02432] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
38
|
Basinska EM, Burke WJ, Maynard NC, Hughes WJ, Winningham JD, Hanson WB. Small-scale electrodynamics of the cusp with northward interplanetary magnetic field. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/91ja03023] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
39
|
Pinnock M, Rodger A, Dudeney J, Greenwald R, Baker K, Ruohoniemi J. An ionospheric signature of possible enhanced magnetic field merging on the dayside magnetopause. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0021-9169(91)90104-f] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
40
|
Stasiewicz K. A global model of gyroviscous field line merging at the magnetopause. ACTA ACUST UNITED AC 1991. [DOI: 10.1029/90ja02194] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
Biernat HK, Heyn MF, Rijnbeek RP, Semenov VS, Farrugia CJ. The structure of reconnection layers: Application to the Earth’s magnetopause. ACTA ACUST UNITED AC 1989. [DOI: 10.1029/ja094ia01p00287] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
42
|
Toffoletto FR, Hill TW. Mapping of the solar wind electric field to the Earth's polar caps. ACTA ACUST UNITED AC 1989. [DOI: 10.1029/ja094ia01p00329] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
43
|
Kan JR. A theory of patchy and intermittent reconnections for magnetospheric flux transfer events. ACTA ACUST UNITED AC 1988. [DOI: 10.1029/ja093ia06p05613] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
44
|
Ogino T, Walker RJ, Ashour-Abdalla M, Dawson JM. An MHD simulation of the effects of the interplanetary magnetic fieldBycomponent on the interaction of the solar wind with the Earth's magnetosphere during southward interplanetary magnetic field. ACTA ACUST UNITED AC 1986. [DOI: 10.1029/ja091ia09p10029] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
45
|
Reiff PH, Luhmann JG. Solar Wind Control of the Polar-Cap Voltage. SOLAR WIND — MAGNETOSPHERE COUPLING 1986. [DOI: 10.1007/978-94-009-4722-1_33] [Citation(s) in RCA: 163] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
46
|
|
47
|
Sato T. Three-dimensional reconnection between two colliding magnetized plasmas. PHYSICAL REVIEW LETTERS 1985; 54:1502-1505. [PMID: 10031055 DOI: 10.1103/physrevlett.54.1502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
48
|
Baumjohann W, Haerendel G. Magnetospheric convection observed between 0600 and 2100 LT: Solar wind and IMF dependence. ACTA ACUST UNITED AC 1985. [DOI: 10.1029/ja090ia07p06370] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Reiff PH, Spiro RW, Wolf RA, Kamide Y, King JH. Comparison of polar cap potential drops estimated from solar wind and ground magnetometer data: CDAW 6. ACTA ACUST UNITED AC 1985. [DOI: 10.1029/ja090ia02p01318] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
50
|
Magnetic field reconnection at the magnetopause: An overview. ACTA ACUST UNITED AC 1984. [DOI: 10.1029/gm030p0092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|