摘要
利用UNAVCO提供的天山地区境内外GPS连续站的观测数据,处理得到各站高程时间序列。进行最小二乘线性拟合,提取速度场,并消除原始序列的线性趋势。然后对时间序列进行谱分析以及小波多分辨率分析。可以看出,天山地区在过去10余年间呈现整体隆升趋势,各个观测站之间抬升的一致性较好,并且各站都表现出明显的季节性变化。
This paper uses continuous GPS observation data provided by UNAVCO to get height time series of each site, and extractes velocity field by least-square linear fit and eliminates the linear trend of the original series. Then we take spectral analysis and wavelet multi-resolution analysis of time series. It can be seen that in the past ten years the Tianshan region shows overall uplift trend and has a good agreement between the various stations. Each station shows significant seasonal changes.
出处
《大地测量与地球动力学》
CSCD
北大核心
2013年第A01期147-151,共5页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(41274027
41274037)
