Abstract
We investigate the short-term fluctuations in the period range from 15 to 180 minutes in the electron density variations of the F region ionosphere. Electron density profiles obtained at the ionospheric stations of Pruhonice (49.9° N, 14.5° E) and Ebro (40.8° N, 0.5° E) at five minute time sampling have been used for this analysis. The diurnal changes of the activity of the acoustic gravity wave fluctuations (AGW) show a clear enhancement during and several hours after sunrise. The periods of such AGW's are about 60 to 75 minutes and these waves propagates vertically through the ionosphere from a source located at an altitude of 180-220 km. The most likely source for these events seems to be passage of the Solar terminator.
| Original language | English |
|---|---|
| Pages (from-to) | 579-586 |
| Number of pages | 8 |
| Journal | Studia Geophysica et Geodaetica |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
Keywords
- AGW
- Ionospheric sounding
- Wave propagation
Fingerprint
Dive into the research topics of 'Diurnal variation of gravity wave activity at midlatitudes in the ionospheric F region'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver