Figure 2
From: Nonstationary footprints of ENSO in the Mekong River Delta hydrology
Time series analysis of the maximum rainfall. (a) The maximum rainfallrecon+GPCP (black line) derived from the min-δ18Osw and rainfallGPCP. Grey shades indicate the 90% confidence intervals of maximum rainfall reconstruction. Cross plots indicate the year with the heavy (blue) or light (red) rainy season. Note that rainfall in the heavy rainy season (blue cross plot) shows an increasing trend. The occurrence rates of heavy (blue line) and light (red line) rainy seasons are indicated above and below panel a, respectively. Light-coloured shades indicate the 90% confidence bands of occurrence rates. (b) The NWP index18 (thin and thick lines: annual and 3-year moving averaged data). (c) A Morlet wavelet analysis for the maximum rainfallrecon+GPCP. The solid black lines indicate a 95% confidence level. White lines show the cone of influence, where edge effects reduce the variance.
