摘要:

The ionospheric scintillation data obtained at Limping Observatory from January to June, 1976, were used to study the scintillation activity at the crest zone of the so‐called equatorial anomaly of foF2. Unusually large scintillation activity was found. Seasonally, the activity was largest in summer and smallest in winter. The scintillation occurred not only at night but also at daytime. At nighttime in summer, the monthly mean scintillation index reached a value as large as 10 dB. At daytime in summer, the monthly mean scintillation index was larger than 5 dB. The diurnal pattern of the percentage occurrence of scintillations was very similar to that of the percentage occurrence of sporadic E greater than 5 MHz. The nighttime scintillation was found to be closely related with the occurrence of spread F; and the daytime scintillation with the occurrence of sporadic E. It was found that the geomagnetic activity seemed to decrease the scintillation activity at nighttime; and to increase scintillation activity at daytime.

ISSN:0253-3839    

DOI:10.1080/02533839.1978.9676618

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0253-3839    

DOI:10.1080/02533839.1978.9676619

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0253-3839    

DOI:10.1080/02533839.1978.9676607

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor