Extended Data Figure 1: Correcting temperature data for lapse rate effect.
From: A progressively wetter climate in southern East Africa over the past 1.3 million years
a, b, Uncorrected TEX86 temperature (a) and temperature corrected for lapse rate effect (b) plotted against burial depth at drilling site MAL05-1. The light solid and dashed lines represent the 1σ and 2σ ranges of uncertainty in both graphs. c, Lake-level history, from LPC114, which is the basis for the lapse-rate correction to temperature (Methods).
