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. 2014 Apr 22;9(4):e94741. doi: 10.1371/journal.pone.0094741

Figure 8. Air temperature variability at weather stations across Africa.

Figure 8

Map of the operating weather stations in Africa included in the GSOD database [75], 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.