Wavelet analysis on chlorophyll concentration change in the area around Bohai Bay area, Yangtze River Delta Region and South China Sea

摘要

Mexico hat wavelet function was used for time series of chlorophyll concentration from 1997 to 2010,in the area around Bohai Bay, Yangtze River Delta sea and South China Sea. Based on this, possible cycle and relation of chlorophyll concentration in different scales is analyzed , and is adopted to predict the changing tendency in the three area.