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Walach M, Grocott A, Thomas EG, Staples F. Dusk-Dawn Asymmetries in SuperDARN Convection Maps. JOURNAL OF GEOPHYSICAL RESEARCH. SPACE PHYSICS 2022; 127:e2022JA030906. [PMID: 37032659 PMCID: PMC10078218 DOI: 10.1029/2022ja030906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/01/2022] [Accepted: 12/13/2022] [Indexed: 06/19/2023]
Abstract
The Super Dual Auroral Radar Network (SuperDARN) is a collection of radars built to study ionospheric convection. We use a 7-year archive of SuperDARN convection maps, processed in 3 different ways, to build a statistical understanding of dusk-dawn asymmetries in the convection patterns. We find that the data set processing alone can introduce a bias which manifests itself in dusk-dawn asymmetries. We find that the solar wind clock angle affects the balance in the strength of the convection cells. We further find that the location of the positive potential foci is most likely observed at latitudes of 78° for long periods (>300 min) of southward interplanetary magnetic field (IMF), as opposed to 74° for short periods (<20 min) of steady IMF. For long steady dawnward IMF the median is also at 78°. For long steady periods of duskward IMF, the positive potential foci tends to be at lower latitudes than the negative potential and vice versa during dawnward IMF. For long periods of steady Northward IMF, the positive and negative cells can swap sides in the convection pattern. We find that they move from ∼0-9 MLT to 15 MLT or ∼15-23 MLT to 10 MLT, which reduces asymmetry in the average convection cell locations for Northward IMF. We also investigate the width of the region in which the convection returns to the dayside, the return flow width. Asymmetries in this are not obvious, until we select by solar wind conditions, when the return flow region is widest for the negative convection cell during Southward IMF.
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Affiliation(s)
| | | | - E. G. Thomas
- Thayer School of EngineeringDartmouth CollegeHanoverNHUSA
| | - F. Staples
- Department of Atmospheric and Oceanic SciencesUniversity of CaliforniaLos AngelesCAUSA
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Longley W, Reiff P, Reistad JP, Østgaard N. Magnetospheric Model Performance during Conjugate Aurora. MAGNETOSPHERE-IONOSPHERE COUPLING IN THE SOLAR SYSTEM 2016. [DOI: 10.1002/9781119066880.ch18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- William Longley
- Department of Physics and Astronomy; Rice University; Houston TX USA
| | - Patricia Reiff
- Department of Physics and Astronomy; Rice University; Houston TX USA
| | - Jone Peter Reistad
- Department of Physics and Technology; University of Bergen; Bergen Norway
| | - Nikolai Østgaard
- Department of Physics and Technology; University of Bergen; Bergen Norway
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Fedder JA, Lyon JG. The Earth's magnetosphere is 165 RElong: Self-consistent currents, convection, magnetospheric structure, and processes for northward interplanetary magnetic field. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94ja02633] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Valladares CE, Carlson HC. The electrodynamic, thermal, and energetic character of intense Sun-aligned arcs in the polar cap. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/90ja01765] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gosling JT, Thomsen MF, Bame SJ, Elphic RC, Russell CT. Observations of reconnection of interplanetary and lobe magnetic field lines at the high-latitude magnetopause. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91ja01139] [Citation(s) in RCA: 216] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Taguchi S, Sugiura M, Winningham JD, Slavin JA. Characterization of the IMFBy-dependent field-aligned currents in the cleft region based on DE 2 observations. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92ja01014] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Baker JBH, Greenwald RA, Ruohoniemi JM, Oksavik K, Gjerloev JW, Paxton LJ, Hairston MR. Observations of ionospheric convection from the Wallops SuperDARN radar at middle latitudes. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006ja011982] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J. B. H. Baker
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - R. A. Greenwald
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - J. M. Ruohoniemi
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - K. Oksavik
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - J. W. Gjerloev
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - L. J. Paxton
- Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
| | - M. R. Hairston
- W. B. Hanson Center for Space Sciences; University of Texas at Dallas; Richardson Texas USA
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Matsuo T. Optimal interpolation analysis of high-latitude ionospheric electrodynamics using empirical orthogonal functions: Estimation of dominant modes of variability and temporal scales of large-scale electric fields. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004ja010531] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gérard JC, Bunce EJ, Grodent D, Cowley SWH, Clarke JT, Badman SV. Signature of Saturn's auroral cusp: Simultaneous Hubble Space Telescope FUV observations and upstream solar wind monitoring. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005ja011094] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Anderson BJ, Ohtani SI, Korth H, Ukhorskiy A. Storm time dawn-dusk asymmetry of the large-scale Birkeland currents. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2005ja011246] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jackman CM. Interplanetary magnetic field at ∼9 AU during the declining phase of the solar cycle and its implications for Saturn's magnetospheric dynamics. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004ja010614] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Matsuo T. High-latitude ionospheric electric field variability and electric potential derived from DE-2 plasma drift measurements: Dependence on IMF and dipole tilt. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002ja009429] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Weimer DR. Maps of ionospheric field-aligned currents as a function of the interplanetary magnetic field derived from Dynamics Explorer 2 data. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000295] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Siscoe GL, Erickson GM, Sonnerup BUÖ, Maynard NC, Siebert KD, Weimer DR, White WW. Global role ofE‖in magnetopause reconnection: An explicit demonstration. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000062] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Guzdar PN, Shao X, Goodrich CC, Papadopoulos K, Wiltberger MJ, Lyon JG. Three-dimensional MHD simulations of the steady state magnetosphere with northward interplanetary magnetic field. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000ja000066] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Watanabe M, Sato N, Greenwald RA, Pinnock M, Hairston MR, Rairden RL, McEwen DJ. The ionospheric response to interplanetary magnetic field variations: Evidence for rapid global change and the role of preconditioning in the magnetosphere. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999ja000433] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Song P, DeZeeuw DL, Gombosi TI, Groth CPT, Powell KG. A numerical study of solar wind-magnetosphere interaction for northward interplanetary magnetic field. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900378] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Raeder J. Modeling the magnetosphere for northward interplanetary magnetic field: Effects of electrical resistivity. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999ja900159] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sandholt PE, Farrugia CJ, Moen J, Cowley SWH. Dayside auroral configurations: Responses to southward and northward rotations of the interplanetary magnetic field. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98ja01541] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Nishida A, Mukai T, Yamamoto T, Kokubun S, Maezawa K. A unified model of the magnetotail convection in geomagnetically quiet and active times. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja01617] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ridley AJ, Lu G, Clauer CR, Papitashvili VO. A statistical study of the ionospheric convection response to changing interplanetary magnetic field conditions using the assimilative mapping of ionospheric electrodynamics technique. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja03328] [Citation(s) in RCA: 206] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bristow WA, Ruohoniemi JM, Greenwald RA. Super Dual Auroral Radar Network observations of convection during a period of small-magnitude northward IMF. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja03168] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Maynard NC, Burke WJ, Weimer DR, Mozer FS, Scudder JD, Russell CT, Peterson WK, Lepping RP. Polar observations of convection with northward interplanetary magnetic field at dayside high latitudes. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja02295] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Øieroset M, Sandholt PE, Denig WF, Cowley SWH. Northward interplanetary magnetic field cusp aurora and high-latitude magnetopause reconnection. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/97ja00559] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ruohoniemi JM, Greenwald RA. Statistical patterns of high-latitude convection obtained from Goose Bay HF radar observations. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96ja01584] [Citation(s) in RCA: 254] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sánchez ER, Ruohoniemi JM, Meng CI, Friis-Christensen E. Toward an observational synthesis of substorm models: Precipitation regions and high-latitude convection reversals observed in the nightside auroral oval by DMSP satellites and HF radars. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96ja00363] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Greenwald RA, Bristow WA, Sofko GJ, Senior C, Cerisier JC, Szabo A. Super dual auroral radar network radar imaging of dayside high-latitude convection under northward interplanetary magnetic field: Toward resolving the distorted two-cell versus multicell controversy. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja01215] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lu G, Richmond AD, Emery BA, Roble RG. Magnetosphere-ionosphere-thermosphere coupling: Effect of neutral winds on energy transfer and field-aligned current. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja00766] [Citation(s) in RCA: 141] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ohtani S, Potemra TA, Newell PT, Zanetti LJ, Iijima T, Watanabe M, Blomberg LG, Elphinstone RD, Murphree JS, Yamauchi M, Woch JG. Four large-scale field-aligned current systems in the dayside high-latitude region. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/94ja01744] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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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]
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Lu G, Lyons LR, Reiff PH, Denig WF, de la Beaujardiére O, Kroehl HW, Newell PT, Rich FJ, Opgenoorth H, Persson MAL, Ruohoniemi JM, Friis-Christensen E, Tomlinson L, Morris R, Burns G, McEwin A. Characteristics of ionospheric convection and field-aligned current in the dayside cusp region. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/94ja02665] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tanaka T. Generation mechanisms for magnetosphere-ionosphere current systems deduced from a three-dimensional MHD simulation of the solar wind-magnetosphere-ionosphere coupling processes. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja00419] [Citation(s) in RCA: 158] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Koskinen HEJ, Pulkkinen TI. Midnight velocity shear zone and the concept of Harang discontinuity. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95ja00228] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lu G, Richmond AD, Emery BA, Reiff PH, de la Beaujardière O, Rich FJ, Denig WF, Kroehl HW, Lyons LR, Ruohoniemi JM, Friis-Christensen E, Opgenoorth H, Persson MAL, Lepping RP, Rodger AS, Hughes T, McEwin A, Dennis S, Morris R, Burns G, Tomlinson L. Interhemispheric asymmetry of the high-latitude ionospheric convection pattern. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/93ja03441] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Reiff PH, Heelis RA. Four cells or two? Are four convection cells really necessary? ACTA ACUST UNITED AC 1994. [DOI: 10.1029/93ja01992] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fujii R, Hoffman RA, Anderson PC, Craven JD, Sugiura M, Frank LA, Maynard NC. Electrodynamic parameters in the nighttime sector during auroral substorms. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/93ja02210] [Citation(s) in RCA: 107] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Papitashvili VO, Belov BA, Faermark DS, Feldstein YI, Golyshev SA, Gromova LI, Levitin AE. Electric potential patterns in the northern and southern polar regions parameterized by the interplanetary magnetic field. ACTA ACUST UNITED AC 1994. [DOI: 10.1029/94ja00822] [Citation(s) in RCA: 121] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Burke WJ, Jacobsen B, Sandholt PE, Denig WF, Maynard NC, Newell PT. Optical signatures and sources of prenoon auroral precipitation. ACTA ACUST UNITED AC 1993. [DOI: 10.1029/92ja02586] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hanuise C, Senior C, Cerisier JC, Villain JP, Greenwald RA, Ruohoniemi JM, Baker KB. Instantaneous mapping of high-latitude convection with coherent HF radars. ACTA ACUST UNITED AC 1993. [DOI: 10.1029/93ja00813] [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]
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Thayer JP, Killeen TL. A kinematic analysis of the high-latitude thermospheric neutral circulation pattern. ACTA ACUST UNITED AC 1993. [DOI: 10.1029/93ja00629] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Woch J, Lundin R. Magnetosheath plasma precipitation in the polar cusp and its control by the interplanetary magnetic field. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/91ja02487] [Citation(s) in RCA: 138] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cumnock JA, Heelis RA, Hairston MR. Response of the ionospheric convection pattern to a rotation of the interplanetary magnetic field on January 14, 1988. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92ja01731] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Burch JL, Saflekos NA, Gurnett DA, Craven JD, Frank LA. The quiet time polar cap: DE 1 observations and conceptual model. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92ja01537] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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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]
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