Figure 3: Comparison between reconstructed and observed Mesoamerican precipitation.
From: Persistent drying in the tropics linked to natural forcing

Shown are the time series of speleothem GU-Xi-1 δ18O (black line, units in permil) and June–November precipitation anomalies in Belize City, Belize (deviation from climatology in mm, blue line) smoothed with a second order binomial filter. The δ18O time series lags the rainfall time series by 6 years.