Yang Qingshu, Huang Weiqiang, Liang Feiyong. The Eigenstructure Characteristics of Water Stage Variability in the Estuaries of Pearl River Delta[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(3):104-109.
Yang Qingshu, Huang Weiqiang, Liang Feiyong. The Eigenstructure Characteristics of Water Stage Variability in the Estuaries of Pearl River Delta[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(3):104-109.DOI:
Tide gauge records were collected from nine stations. High frequency components were removed form monthly mean time series by the Maximum Flat Filter. Three orthogonal eigenmodes which accounted for 93% of the total variance of the low passed time series were found through EOF analysis. According to the distribution of spatial and temperal eigenvectors
the characteristics of the water stage variability in the Pearl River Delta area were discussed. The overall average rate of water stage change is 2. 1 mm/a. Based on co-spectrum analysis
the frequency responses of water stage to variations in river discharge
wind
atmospheric pressure and atmospheric temperature were discussed.