Figure 5
From: Observations of enhanced rainfall variability in Kenya, East Africa
Monthly values of standardized DMI, Standardized Niño 3.4 SST Index, and standardized monthly rainfall (a), wavelet coherence between time series of the Niño3.4 SST index and DMI (b), Niño 3.4 SST index and rainfall (c), DMI and rainfall (d). Rainfall data are averages over the Kenya geographic extent. The color scale shows correlation between the time series. Arrows show phase relationships between the time series (in phase if pointing up, anti-phase if pointing down, one signal leading another if pointing right—in this case, Niño 3.4 index leading DMI or Niño 3.4 index leading rainfall or DMI leading rainfall). Wavelet coherence was performed in Python 3.7.0 using pyCWT101 library for spectral analysis, and the figures were created using Matplotlib 3.7.087 library (https://ieeexplore.ieee.org/document/4160265).
