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Comparison of high latitude electron density profiles obtained with the GPS radio occultation technique and EISCAT measurements

Stolle, C. and Jakowski, N. and Schlegel, K. and Rietveld, M. (2004) Comparison of high latitude electron density profiles obtained with the GPS radio occultation technique and EISCAT measurements. Annales Geophysicae, Vol. 22 (1), pp. 2015-2028.

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Abstract

To obtain a comprehensive view on high latitude processes by applying different observation techniques, the SIRCUS campaign was initiated in 2001/2002. This paper compares electron density profiles derived from CHAMP radio occultation data and those measured with the EISCAT facility. Since ionospheric profiling with the help of space-based received GPS is a relatively new technique, validations with established independent instruments are of crucial need. We present 28 profiling events for quasi-statistical analyses, which occurred during the SIRCUS campaigns and describe some of them in more detail. We found out that the majority of profile comparisons in electron density peak value and height, as well as in TEC, lie within the error ranges of the two methods. Differences in the ionospheric quantities do not necessarily occur when the locations of the occultation and of the radar site show considerable distances. Differences are more pronounced when the ionosphere is remarkably structured.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2004,
Title:Comparison of high latitude electron density profiles obtained with the GPS radio occultation technique and EISCAT measurements
Authors:
AuthorsInstitution or Email of Authors
Stolle, C.Universität Leipzig
Jakowski, N.UNSPECIFIED
Schlegel, K.Max-Planck-Institut für Aeronomie, Katlenburg-Lindau
Rietveld, M.Max-Planck-Institut für Aeronomie, Katlenburg-Lindau
Date:2004
Journal or Publication Title:Annales Geophysicae
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 22
Page Range:pp. 2015-2028
Status:Published
Keywords:Electron Density, GPS, Radio Occultation
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 21:38

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