Storm induced large scale TIDs observed in GPS derived TEC
This work is a first statistical analysis of large scale traveling ionospheric disturbances (LSTID) in Europe using total electron content (TEC) data derived from GNSS measurements. The GNSS receiver network in Europe is dense enough to map the ionospheric perturbation TEC with high horizontal r...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2009-04-01
|
| Series: | Annales Geophysicae |
| Online Access: | https://www.ann-geophys.net/27/1605/2009/angeo-27-1605-2009.pdf |
| _version_ | 1811239083852169216 |
|---|---|
| author | C. Borries N. Jakowski V. Wilken |
| author_facet | C. Borries N. Jakowski V. Wilken |
| author_sort | C. Borries |
| collection | DOAJ |
| description | This work is a first statistical analysis of large scale traveling
ionospheric disturbances (LSTID) in Europe using total electron content (TEC)
data derived from GNSS measurements. The GNSS receiver network in Europe is
dense enough to map the ionospheric perturbation TEC with high horizontal
resolution. The derived perturbation TEC maps are analysed studying the
effect of space weather events on the ionosphere over Europe.
<br><br>
Equatorward propagating storm induced wave packets have been identified
during several geomagnetic storms. Characteristic parameters such as
velocity, wavelength and direction were estimated from the perturbation TEC
maps. Showing a mean wavelength of 2000 km, a mean period of 59 min and a
phase speed of 684 ms<sup>−1</sup> in average, the perturbations are allocated to
LSTID. The comparison to LSTID observed over Japan shows an equal wavelength
but a considerably faster phase speed. This might be attributed to the
differences in the distance to the auroral region or inclination/declination
of the geomagnetic field lines.
<br><br>
The observed correlation between the LSTID amplitudes and the Auroral
Electrojet (AE) indicates that most of the wave like perturbations are exited
by Joule heating. Particle precipitation effects could not be separated. |
| first_indexed | 2024-04-12T12:53:38Z |
| format | Article |
| id | doaj.art-3fd3d79e50b04c4a80fde72e80dd3019 |
| institution | Directory Open Access Journal |
| issn | 0992-7689 1432-0576 |
| language | English |
| last_indexed | 2024-04-12T12:53:38Z |
| publishDate | 2009-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Annales Geophysicae |
| spelling | doaj.art-3fd3d79e50b04c4a80fde72e80dd30192022-12-22T03:32:23ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762009-04-01271605161210.5194/angeo-27-1605-2009Storm induced large scale TIDs observed in GPS derived TECC. Borries0N. Jakowski1V. Wilken2DLR, Institute for Communication and Navigation, Kalkhorstweg 53, 17235 Neustrelitz, GermanyDLR, Institute for Communication and Navigation, Kalkhorstweg 53, 17235 Neustrelitz, GermanyDLR, Institute for Communication and Navigation, Kalkhorstweg 53, 17235 Neustrelitz, GermanyThis work is a first statistical analysis of large scale traveling ionospheric disturbances (LSTID) in Europe using total electron content (TEC) data derived from GNSS measurements. The GNSS receiver network in Europe is dense enough to map the ionospheric perturbation TEC with high horizontal resolution. The derived perturbation TEC maps are analysed studying the effect of space weather events on the ionosphere over Europe. <br><br> Equatorward propagating storm induced wave packets have been identified during several geomagnetic storms. Characteristic parameters such as velocity, wavelength and direction were estimated from the perturbation TEC maps. Showing a mean wavelength of 2000 km, a mean period of 59 min and a phase speed of 684 ms<sup>−1</sup> in average, the perturbations are allocated to LSTID. The comparison to LSTID observed over Japan shows an equal wavelength but a considerably faster phase speed. This might be attributed to the differences in the distance to the auroral region or inclination/declination of the geomagnetic field lines. <br><br> The observed correlation between the LSTID amplitudes and the Auroral Electrojet (AE) indicates that most of the wave like perturbations are exited by Joule heating. Particle precipitation effects could not be separated.https://www.ann-geophys.net/27/1605/2009/angeo-27-1605-2009.pdf |
| spellingShingle | C. Borries N. Jakowski V. Wilken Storm induced large scale TIDs observed in GPS derived TEC Annales Geophysicae |
| title | Storm induced large scale TIDs observed in GPS derived TEC |
| title_full | Storm induced large scale TIDs observed in GPS derived TEC |
| title_fullStr | Storm induced large scale TIDs observed in GPS derived TEC |
| title_full_unstemmed | Storm induced large scale TIDs observed in GPS derived TEC |
| title_short | Storm induced large scale TIDs observed in GPS derived TEC |
| title_sort | storm induced large scale tids observed in gps derived tec |
| url | https://www.ann-geophys.net/27/1605/2009/angeo-27-1605-2009.pdf |
| work_keys_str_mv | AT cborries storminducedlargescaletidsobservedingpsderivedtec AT njakowski storminducedlargescaletidsobservedingpsderivedtec AT vwilken storminducedlargescaletidsobservedingpsderivedtec |