Ionospheric signatures of plasmaspheric tails
Name
Foster_et_al-2002-Geophysical_Research_Letters.pdf
Size
402.14 KB
Format
Adobe PDF
Checksum (MD5)
542879bf356e211042db4ef3bff914fb
Author(s)
Foster, John C
Date Issued
July 2002
Journal
Geophysical Research Letters
Publisher
American Geophysical Union (AGU)
Citation
Foster, J. C. “Ionospheric Signatures of Plasmaspheric Tails.” Geophysical Research Letters 29, 13 (2002): 1623 © 2002 American Geophysical Union
Version
Final published version
Abstract
[1] We make direct comparisons between GPS maps of total electron content (TEC) over the North American continent, Millstone Hill radar observations of storm enhanced density, and low and high‐altitude satellite measurements of the perturbation of the outer plasmasphere during the March 31, 2001 geomagnetic storm. We find that storm enhanced density (SED) and plumes of greatly‐elevated TEC are associated with the erosion of the outer plasmasphere by strong sub‐auroral polarization electric fields. The SED/TEC plumes identified at low altitude map closely onto the magnetospheric determination of the boundaries of the plasmapause and plasmaspheric tail determined by EUV imaging from the IMAGE spacecraft. Characteristics of the SED/TEC plumes/tails for the March 31, 2001 event are: TEC ∼ 100 TECu; F‐region sunward velocity ∼1000 m/s; sunward flux ∼5*10[superscript 24] ions s[superscript −1]; total transport to dayside magnetopause/merging region (3‐hr event) ∼5*10[superscript 28] ions.
MIT Department
Haystack Observatory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1029/2002GL015067
