Air temperature variability at weather stations across Africa.

<p>Map of the operating weather stations in Africa included in the GSOD database <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0094741#pone.0094741-Global1" target="_blank">[75]</a>, within (A) the 1981–2000 period and (B) within the 2001–2010 period. Each weather station is represented by a filled circle. Its size is proportional to its reporting frequency (maximum size corresponds to daily reporting), and its color corresponds to the 10-day air-temperature variability. Certain regions of Africa have a dense network of reliable weather stations (e.g. South Africa) while other regions are simply devoid of weather stations (e.g. DRC). Air temperature variability is smallest at the equator (around 0.5°C) and increases up to 2.5°C at 30 degrees of latitude.