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Comparison of observed and model magnetic fields at high altitudes above the polar cap : POLAR initial results. / Zhou, X. W.; Russell, C. T.; Le, G.; Tsyganenko, N.

In: Geophysical Research Letters, Vol. 24, No. 12, 97GL01406, 01.01.1997, p. 1451-1454.

Research output: Contribution to journal › Article › peer-review

Harvard

Zhou, XW, Russell, CT, Le, G & Tsyganenko, N 1997, 'Comparison of observed and model magnetic fields at high altitudes above the polar cap: POLAR initial results', Geophysical Research Letters, vol. 24, no. 12, 97GL01406, pp. 1451-1454. https://doi.org/10.1029/97GL01406

APA

Zhou, X. W., Russell, C. T., Le, G., & Tsyganenko, N. (1997). Comparison of observed and model magnetic fields at high altitudes above the polar cap: POLAR initial results. Geophysical Research Letters, 24(12), 1451-1454. [97GL01406]. https://doi.org/10.1029/97GL01406

Vancouver

Zhou XW, Russell CT, Le G, Tsyganenko N. Comparison of observed and model magnetic fields at high altitudes above the polar cap: POLAR initial results. Geophysical Research Letters. 1997 Jan 1;24(12):1451-1454. 97GL01406. https://doi.org/10.1029/97GL01406

Author

Zhou, X. W. ; Russell, C. T. ; Le, G. ; Tsyganenko, N. / Comparison of observed and model magnetic fields at high altitudes above the polar cap : POLAR initial results. In: Geophysical Research Letters. 1997 ; Vol. 24, No. 12. pp. 1451-1454.

BibTeX

@article{a70f010e060e46cfb4c3a18381a19dac,
title = "Comparison of observed and model magnetic fields at high altitudes above the polar cap: POLAR initial results",
abstract = "Data obtained from the high altitude, polar orbiting spacecraft, POLAR, are compared with the latest version of the data-based magnetospheric magnetic field model. The data generally agree well with the model. The major directional discrepancies at high altitudes are near the dayside cusp and on the {"}open{"} field lines over the polar cap, especially close to the boundary of the polar cap. Near the cusp, the agreement is improved if a stronger solar wind dynamic pressure and more negative IMF By and Bz are used as the model input parameters, than was actually observed. The field measured in the vicinity of the polar cusps is generally weaker than predicted by the model. Close to noon the spacecraft enters a region of additional structured field depression that appears to be the polar cusp proper. Within the limited statistics presented here, the invariant latitude of the cusp appears to be controlled by the north-south component of the IMF and the broad depression appears to be controlled by the tilt of the dipole.",
keywords = "magnetosphere, polar cusps, satellite data, magnetic field",
author = "Zhou, {X. W.} and Russell, {C. T.} and G. Le and N. Tsyganenko",
year = "1997",
month = jan,
day = "1",
doi = "10.1029/97GL01406",
language = "English",
volume = "24",
pages = "1451--1454",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "12",

}

RIS

TY - JOUR

T1 - Comparison of observed and model magnetic fields at high altitudes above the polar cap

T2 - POLAR initial results

AU - Zhou, X. W.

AU - Russell, C. T.

AU - Le, G.

AU - Tsyganenko, N.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - Data obtained from the high altitude, polar orbiting spacecraft, POLAR, are compared with the latest version of the data-based magnetospheric magnetic field model. The data generally agree well with the model. The major directional discrepancies at high altitudes are near the dayside cusp and on the "open" field lines over the polar cap, especially close to the boundary of the polar cap. Near the cusp, the agreement is improved if a stronger solar wind dynamic pressure and more negative IMF By and Bz are used as the model input parameters, than was actually observed. The field measured in the vicinity of the polar cusps is generally weaker than predicted by the model. Close to noon the spacecraft enters a region of additional structured field depression that appears to be the polar cusp proper. Within the limited statistics presented here, the invariant latitude of the cusp appears to be controlled by the north-south component of the IMF and the broad depression appears to be controlled by the tilt of the dipole.

AB - Data obtained from the high altitude, polar orbiting spacecraft, POLAR, are compared with the latest version of the data-based magnetospheric magnetic field model. The data generally agree well with the model. The major directional discrepancies at high altitudes are near the dayside cusp and on the "open" field lines over the polar cap, especially close to the boundary of the polar cap. Near the cusp, the agreement is improved if a stronger solar wind dynamic pressure and more negative IMF By and Bz are used as the model input parameters, than was actually observed. The field measured in the vicinity of the polar cusps is generally weaker than predicted by the model. Close to noon the spacecraft enters a region of additional structured field depression that appears to be the polar cusp proper. Within the limited statistics presented here, the invariant latitude of the cusp appears to be controlled by the north-south component of the IMF and the broad depression appears to be controlled by the tilt of the dipole.

KW - magnetosphere

KW - polar cusps

KW - satellite data

KW - magnetic field

UR - http://www.scopus.com/inward/record.url?scp=0031163885&partnerID=8YFLogxK

U2 - 10.1029/97GL01406

DO - 10.1029/97GL01406

M3 - Article

AN - SCOPUS:0031163885

VL - 24

SP - 1451

EP - 1454

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 12

M1 - 97GL01406

ER -

ID: 28235826