FIGURE 4.11: These 19 global panels show the seasonal average distribution of atmospheric aerosol amounts across Africa and the Atlantic Ocean. The measurements capture airborne particles in the entire atmospheric column, for subvisible sizes ranging from tiny smoke particles to "medium" dust (about 0.5 to 2.5 microns). Such particles are produced by forest fires, deserts, volcanoes, breaking ocean waves, and urban and industrial pollution sources.

SOURCE: NASA, Goddard Space Flight Center, Langley Research Center, Jet Propulsion Laboratory; Multi-angle Imaging Spectroradimeter Team.