A post for map geeks. How to turn an animation of a year's worth of daily rain maps into a single picture.
Deadly flooding has replaced the dry start to the 2014-2015 southern Africa monsoon, and the wet season has several months left go.
Near the Earth’s equator, solar heating is intense year round. Converging trade winds and abundant water vapor all combine to produce a persistent belt of daily showers known as the Intertropical Convergence Zone.