지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Long-term GPS data analysis was performed in order to analyze the seasonal variation of tropospheric delay and the success rate of the ambiguity resolution. For this analysis, a total of 57 stations including 10 IGS stations in East Asia were processed together with double-differenced observables using Bernese GPS Software V5.0. The time span for this study ranges from 2002.0 to 2012.5 (10.5 years). The average baseline length is 339.0 km and the maximum reaches up to 2,000 km. The analysis is focused on two things: the annual variation of the tropospheric delay and the ambiguity resolution rate. The tropospheric delay is closely related to the weather condition, especially relative humidity, therefore it was estimated that the maximum would be in summer, while reaching its minimum in winter with the apparent seasonal variations. On the contrary, however, the success rate of the ambiguity resolution shows the opposite pattern: its maximum was in winter and minimum in summer. The fact seems to be induced by the surrounding conditions; that is, the trees thick with leaves near the GPS antenna interfere with GPS signals in summer. This seems to confirm partly that there is a distinct trend in the decreasing success rate since 2006 because the trees are growing every year. It is necessary to eliminate the factors that degrade the GPS quality and the tropospheric modeling for Korea needs to be studied further.
목차
Abstract
1. Introduction
2. Data processing strategies
3. Processing results and analysis
4. Summary and conclusions
References
참고문헌 (12)
참고문헌 신청
조재명 / 2011 / GPS상대측위 정확도 향상을 위한 한반도 지각변동모델 개발 / 한국측량학회지 29(3):237~247
하지현 / 2005 / GPS를 이용한 대류층의 시선방향 습윤지연 계산관련 오차요인 분석 / 한국기상학회지 41(3):337~346
Hu G. / 2009 / Analysis of regional GPS campaigns and their alignment to the international terrestrial reference frame (ITRF) / Journal of Spatial Science 54(1):15~22
IERS / 2010 / IERS Conventions (2010), IERS Technical Note 36 / Verlag des Bundesamts für Kartographie und Geodäsie :179
김수경 / 2012 / 한반도 지각의 2011 도호쿠 대지진 영향 분석 / 한국측량학회지 30(1):87~96
하지현 / 2005 / GPS를 이용한 대류층의 시선방향 습윤지연 계산관련 오차요인 분석 / 한국기상학회지 41(3):337~346
Hu G. / 2009 / Analysis of regional GPS campaigns and their alignment to the international terrestrial reference frame (ITRF) / Journal of Spatial Science 54(1):15~22
IERS / 2010 / IERS Conventions (2010), IERS Technical Note 36 / Verlag des Bundesamts für Kartographie und Geodäsie :179
김수경 / 2012 / 한반도 지각의 2011 도호쿠 대지진 영향 분석 / 한국측량학회지 30(1):87~96
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UCI(KEPA) : I410-ECN-0101-2014-530-003341820