Multi-time-scale analysis of groundwater level series with wavelet transform
Renduo Zhang · Engineering Journal of Wuhan University · 2008
Based on Mexican Hat wavelet transform,the multi-time-scale of mensal average groundwater level series at an irrigation distinct in Northwest China have been analyzed.The results show that the wavelet transform can clearly demonstrate all kinds of features of groundwater level series,such as the strength and distribution of the period and jump as well as the major periods.The above characteristics exist unevenly in the discussed time domain;the wavelet transform has the advantage of probing the multi-time-scale of hydrology and water resources time series.