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Volumn 340, Issue 6127, 2013, Pages 1597-1600

Direct observations of the evolution of polar cap ionization patches

Author keywords

[No Author keywords available]

Indexed keywords

DISTURBANCE; ERROR ANALYSIS; GEOMAGNETIC STORM; ICE CAP; IONIZATION; IONOSPHERE; MAGNETOSPHERE; NAVIGATION; POLAR REGION; RADAR; TELECOMMUNICATION; WEATHER;

EID: 84875530975     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1231487     Document Type: Article
Times cited : (127)

References (27)
  • 1
    • 0002050033 scopus 로고    scopus 로고
    • W. Stone, Ed. Oxford Univ. Press, Oxford
    • G. Crowley, in Review of Radio Science 1992-1996, W. Stone, Ed. (Oxford Univ. Press, Oxford, 1996), pp. 619 -648.
    • (1996) Review of Radio Science 1992-1996 , pp. 619-648
    • Crowley, G.1
  • 9
    • 84875530172 scopus 로고    scopus 로고
    • note
    • The Dungey convection cycle is the flow of ionospheric plasma antisunward over the polar cap and the sunward return flow immediately outside the polar cap in the auroral ovals. It is caused by magnetopause reconnection, which generates "open " magnetic flux that is connected to the interplanetary magnetic field embedded in the solar wind flow and by reconnection in the cross-tail current sheet that recloses the flux, enabling it to migrate sunward back to the dayside. Steady state, in which these two reconnection voltages are equal, is rarely achieved, and the normal behavior is the substorm cycle in which magnetopause reconnection voltage dominates in the initial growth phase but the tail reconnection voltage dominates in the later expansion and recovery phases. The instantaneous ionospheric flow patterns for the Dungey cycle during substorms are given by the ECPC model (18).
  • 20
    • 84875541490 scopus 로고    scopus 로고
    • note
    • 2 = 1 TEC unit (TECU) (21). TEC is important in determining the scintillation and group delay of radio waves passing through the ionosphere. It is determined by observing carrier phase delays of received radio signals transmitted from satellites above the ionosphere; here, we use GPS satellites. TEC is strongly affected by solar activity.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.