Some results of night-time scintillations at low latitude |
| |
| Authors: | Sushil Kumar S K Vijay A K Gwal |
| |
| Institution: | (1) Department of Physics, Bhopal University, 462026 Bhopal, India |
| |
| Abstract: | Ionospheric scintillation observations of VHF radio signals from FLEETSAT satellite (73°E longitude) at Bhopal from January
1990 to December 1990 have been used to study the characteristic variations of scintillation activity. It is found that scintillation
occurrence is essentially a night-time phenomenon and day-time scintillations are very rare. Annual average nocturnal variation
of percentage occurrence of scintillations shows maximum at around 2100–2200 hours LT. Seasonally, scintillations are most
prominent during equinoxes and least during summer. Geomagnetic disturbances tend to decrease the occurrence of scintillations
in the pre-midnight period. |
| |
| Keywords: | Ionospheric scintillation percentage occurrence F-region irregularities geomagnetic disturbances |
| 本文献已被 SpringerLink 等数据库收录！ |
