Using VLBI fringe-phase information from geodetic experiments for short-period ionospheric studies

The usage of Very Long Baseline Interferometry (VLBI) fringe-phase information in geodetic VLBI is a new field of research, which can be used for the detection of short-period (i.e., several minutes) variations (scintillations) of the ionosphere. This paper presents a method for the extraction of su...

Full description

Saved in:
Bibliographic Details
Published in:Journal of geodesy 2007-06, Vol.81 (6-8), p.389-401
Main Authors: Hobiger, Thomas, Kondo, Tetsuro, Koyama, Yasuhiro, Takashima, Kazuhiro, Schuh, Harald
Format: Article
Language:English
Subjects:
Algorithms
Geodetics
Interferometry
Ionosphere
Stochastic models
Studies
Traveling ionospheric disturbances
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The usage of Very Long Baseline Interferometry (VLBI) fringe-phase information in geodetic VLBI is a new field of research, which can be used for the detection of short-period (i.e., several minutes) variations (scintillations) of the ionosphere. This paper presents a method for the extraction of such disturbances and discusses how dispersive influences can be separated from intra-scan delay variations. A proper functional and stochastic model for the separation of the different effects is presented and the algorithms are applied to real measurements. In an example, it is shown that a traveling ionospheric disturbance in Antarctica can be detected very precisely. A possible physical origin and the propagation properties of the disturbance are presented and the results are compared with GPS measurements. The benefit of this method for other applications is also discussed.
ISSN:0949-7714
1432-1394
DOI:10.1007/s00190-007-0142-4