Electron density distribution over the northern polar region deduced from IMAGE/radio plasma imager sounding

P. A. Nsumei; X. Huang; B. W. Reinisch; P. Song; V. M. Vasyliunas; J. L. Green; S. F. Fung; R. F. Benson; D. L. Gallagher

doi:10.1029/2002JA009616

Electron density distribution over the northern polar region deduced from IMAGE/radio plasma imager sounding

P. A. Nsumei
, X. Huang
, B. W. Reinisch
, P. Song
, V. M. Vasyliunas
, J. L. Green
, S. F. Fung
, R. F. Benson
, D. L. Gallagher

University of Massachusetts Lowell
Max Planck Institute for Solar System Research
NASA Goddard Space Flight Center
NASA Marshall Space Flight Center

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

44 Scopus citations

Abstract

Electron density N_e distributions in the northern polar region are determined from 1.4 to 5.0 R_E at invariant latitudes greater than 70° using the radio plasma imager (RPI) on the IMAGE satellite over the period from June 2000 to November 2001. An empirical N_e model in this region is derived as a function of radial distance and geomagnetic activity. A power law with a power index of -5.09 ± 0.03 describes the variation of N_e with radial distance. The N_e appears to increase exponentially with the Kp index. The altitude dependence of the empirical model at low geomagnetic activity is qualitatively consistent with previous models derived from the ISIS 1 and the Dynamic Explorer 1 spacecraft.

Original language	English
Article number	1078
Journal	Journal of Geophysical Research: Space Physics
Volume	108
Issue number	A2
DOIs	https://doi.org/10.1029/2002JA009616
State	Published - Feb 2003
Externally published	Yes

Keywords

Active experiment
Density distribution
Geomagnetic activity
Multivariate regression
Polar cap
Radio sounding

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10.1029/2002JA009616

Cite this

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title = "Electron density distribution over the northern polar region deduced from IMAGE/radio plasma imager sounding",

abstract = "Electron density Ne distributions in the northern polar region are determined from 1.4 to 5.0 RE at invariant latitudes greater than 70° using the radio plasma imager (RPI) on the IMAGE satellite over the period from June 2000 to November 2001. An empirical Ne model in this region is derived as a function of radial distance and geomagnetic activity. A power law with a power index of -5.09 ± 0.03 describes the variation of Ne with radial distance. The Ne appears to increase exponentially with the Kp index. The altitude dependence of the empirical model at low geomagnetic activity is qualitatively consistent with previous models derived from the ISIS 1 and the Dynamic Explorer 1 spacecraft.",

keywords = "Active experiment, Density distribution, Geomagnetic activity, Multivariate regression, Polar cap, Radio sounding",

author = "Nsumei, \{P. A.\} and X. Huang and Reinisch, \{B. W.\} and P. Song and Vasyliunas, \{V. M.\} and Green, \{J. L.\} and Fung, \{S. F.\} and Benson, \{R. F.\} and Gallagher, \{D. L.\}",

year = "2003",

month = feb,

doi = "10.1029/2002JA009616",

language = "English",

volume = "108",

journal = "Journal of Geophysical Research: Space Physics",

issn = "2169-9380",

publisher = "John Wiley and Sons Inc.",

number = "A2",

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TY - JOUR

T1 - Electron density distribution over the northern polar region deduced from IMAGE/radio plasma imager sounding

AU - Nsumei, P. A.

AU - Huang, X.

AU - Reinisch, B. W.

AU - Song, P.

AU - Vasyliunas, V. M.

AU - Green, J. L.

AU - Fung, S. F.

AU - Benson, R. F.

AU - Gallagher, D. L.

PY - 2003/2

Y1 - 2003/2

N2 - Electron density Ne distributions in the northern polar region are determined from 1.4 to 5.0 RE at invariant latitudes greater than 70° using the radio plasma imager (RPI) on the IMAGE satellite over the period from June 2000 to November 2001. An empirical Ne model in this region is derived as a function of radial distance and geomagnetic activity. A power law with a power index of -5.09 ± 0.03 describes the variation of Ne with radial distance. The Ne appears to increase exponentially with the Kp index. The altitude dependence of the empirical model at low geomagnetic activity is qualitatively consistent with previous models derived from the ISIS 1 and the Dynamic Explorer 1 spacecraft.

AB - Electron density Ne distributions in the northern polar region are determined from 1.4 to 5.0 RE at invariant latitudes greater than 70° using the radio plasma imager (RPI) on the IMAGE satellite over the period from June 2000 to November 2001. An empirical Ne model in this region is derived as a function of radial distance and geomagnetic activity. A power law with a power index of -5.09 ± 0.03 describes the variation of Ne with radial distance. The Ne appears to increase exponentially with the Kp index. The altitude dependence of the empirical model at low geomagnetic activity is qualitatively consistent with previous models derived from the ISIS 1 and the Dynamic Explorer 1 spacecraft.

KW - Active experiment

KW - Density distribution

KW - Geomagnetic activity

KW - Multivariate regression

KW - Polar cap

KW - Radio sounding

UR - https://www.scopus.com/pages/publications/0347726808

U2 - 10.1029/2002JA009616

DO - 10.1029/2002JA009616

M3 - Article

AN - SCOPUS:0347726808

SN - 2169-9380

VL - 108

JO - Journal of Geophysical Research: Space Physics

JF - Journal of Geophysical Research: Space Physics

IS - A2

M1 - 1078

ER -

Electron density distribution over the northern polar region deduced from IMAGE/radio plasma imager sounding

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Keywords

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