- Comparison of Hydrogeological Time Series Analysis Results Before and After Detrending
- Lim, Hong-Gyun;Choi, Hyun-Mi;Lee, Jin-Yong;
- Department of Geology, Kangwon National University;Department of Geology, Kangwon National University;Department of Geology, Kangwon National University;
- 변동경향성 제거 전후의 수리지질학적 시계열분석 결과 비교
- 임홍균;최현미;이진용;
- 강원대학교 지질학과;강원대학교 지질학과;강원대학교 지질학과;
Abstract
In this study, we compared the analysis results before and after the detrending for the data. According to the comparison results, correlation functions were not much changed while autocorrelation and spectral density functions were largely varied. Especially, time series data with a long-term variation trend showed a distinctive difference. This study demonstrated a usefulness of the detrending for a further analysis.
Keywords: Time series analysis;Detrending;Auto-correlation;Spectral density;Cross-correlation;
This Article