Ionospheric peak parameter foF2 and its variation trend observed by GPS

• 발행기관: 한국항해항만학회
• 저자명: Shuanggen Jin Jong-Uk Park Pil-Ho Park Byung-Kyu Choi
• 간행물 정보: 『한국항해항만학회 학술대회논문집』2006년도 International Symposium on GPS/GNSS Vol.2, 1~4쪽, 전체 4쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.10.25

영문 초록

Knowledge of the ionospheric peak parameter foF2 (the critical frequency of F2 layer) is one of key essential factors for predicting ionospheric characteristics and delay correction of satellite positioning. However, the foF2 was almost estimated using an empirical model of International Reference Ionosphere (IRI) or other expensive observing techniques, such as ionosodes and scatter radar. In this paper, the ionospheric peak parameter foF2 is the first observed by ground-based with all weather, low-cost and near real time properties. Compared with the IRI-2001 and independent ionosondes at or near the GPS receiver stations, the foF2 obtained from ground-based GPS is in better agreement, but closer to the ionosonde. However, during nighttime, the IRI model overestimated the GPS studied using foF2 monthly median hourly data measured over South Korea. It has shown that the systematic diurnal (semiannual anomaly) as well as in mid-daytime of each season.

목차

1. Introduction

2. The foF2 parameter from GPS observations

3. Variation trend of the foF2

4. Conclusion

키워드

ionosphere GPS foF2 IRI