The response of the azimuthal component of the ionospheric electric field to auroral arc brightening

被引：3
|
作者：
Safargaleev, V [1 ]
Lyatsky, W
Gazey, NG
Smith, PN
Kriviliov, V
机构：
[1] Russian Acad Sci, Polar Geophys Inst, Apatity 184200, Russia
[2] Rutherford Appleton Lab, EISCAT Grp, Didcot OX11 0QX, Oxon, England
[3] Univ Sussex, Space Phys Grp, Brighton BN1 9QH, E Sussex, England
来源：
ANNALES GEOPHYSICAE-ATMOSPHERES HYDROSPHERES AND SPACE SCIENCES | 2000年 / 18卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
ionosphere; electric fields and currents; ionospheric irregularities; magnetospheric physics; auroral phenomena;
D O I：
10.1007/s00585-000-0065-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have analyzed the response of azimuthal component of the ionospheric electric field to auroral arc activity. We have chosen for analysis three intervals of coordinated EISCAT and TV observations on 18 February, 1993. These intervals include three kinds of are activity: the appearance of a new auroral are, the gradual brightening of the existing are and variations of the arc luminosity. The arcs were mostly east-west aligned. In all cases, the enhancement of are luminosity is accompanied by a decrease in the westward component of the ionospheric electric field. In contrast, an increase of that component seems to be connected with are fading. The observed response is assumed to have the same nature as the "short circuit" of an external electric field by the conductor. The possible consequence of this phenomenon is discussed.
引用
收藏
页码：65 / 73
页数：9
相关论文
共 50 条
  • [1] Auroral particles associated with a substorm brightening arc
    Yago, K
    Shiokawa, K
    Hayashi, K
    Yumoto, K
    GEOPHYSICAL RESEARCH LETTERS, 2005, 32 (06) : 1 - 4
  • [2] Response of the quiet auroral arc motion to ionospheric convection variations
    Kozlovsky, A
    Lakkala, T
    Kangas, J
    Aikio, A
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2001, 106 (A10) : 21463 - 21473
  • [3] Variation of the azimuth component of the ionospheric electric field before and during periods of auroral break-up
    Safargaleev, VV
    Lyatskii, VB
    Smit, P
    Krivilev, VN
    Geizi, N
    Manninen, Y
    Kauristi, K
    Turunen, T
    Kozlovskii, AE
    GEOMAGNETIZM I AERONOMIYA, 2000, 40 (02): : 39 - 46
  • [4] A COMPARISON OF IONOSPHERIC ELECTRIC FIELD MEASUREMENTS AND MOTION OF AURORAL FORMS
    KELLEY, M
    SERLIN, R
    STARR, J
    TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1970, 51 (04): : 404 - &
  • [5] Ionospheric conductances and currents of amorning sector auroral arc from Swarm-A electric and magnetic field measurements
    Juusola, L.
    Archer, W. E.
    Kauristie, K.
    Burchill, J. K.
    Vanhamaki, H.
    Aikio, A. T.
    GEOPHYSICAL RESEARCH LETTERS, 2016, 43 (22) : 11519 - 11527
  • [6] ELECTRIC AND MAGNETIC FIELD MEASUREMENTS OVER AN AURORAL ARC
    KINTNER, P
    POTTER, WE
    CAHILL, LJ
    TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1971, 52 (11): : 894 - &
  • [7] MEASUREMENTS OF ELECTRIC FIELD COMPONENT OF WAVES IN AURORAL IONOSPHERE
    KELLEY, MC
    MOZER, FS
    FAHLESON, UV
    PLANETARY AND SPACE SCIENCE, 1970, 18 (06) : 847 - &
  • [8] POST SUBSTORM CONVECTION AND AURORAL ARC CURRENTS DETERMINED FROM MULTIPLE IONOSPHERIC, MAGNETIC, AND ELECTRIC-FIELD OBSERVATIONS
    WALKER, JK
    KOEHLER, JA
    CREUTZBERG, F
    MCNAMARA, AG
    JONES, AV
    WHALEN, BA
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1981, 86 (NA12): : 9975 - 9988
  • [9] Climatological characteristics of the auroral ionosphere in terms of electric field and ionospheric conductance
    Ahn, BH
    Emery, BA
    Kroehl, HW
    Kamide, Y
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1999, 104 (A5) : 10031 - 10040
  • [10] RELATIVE CONTRIBUTION OF IONOSPHERIC CONDUCTIVITY AND ELECTRIC-FIELD TO THE AURORAL ELECTROJETS
    KAMIDE, Y
    VICKREY, JF
    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1983, 88 (NA10): : 7989 - 7996
12345