Figure 5.3

Figure 5.3
Dry season in Brazil. This photograph (NASA photograph NASA5-705-080) looks southeastward over Lake Titicaca in the Peruvian-Bolivian Andes (foreground) and Lago Poopó (Bolivia) toward the smoke-induced haze of Brazilian and Bolivian lowlands. The late July 1997 Amazon smoke pall, the result of biomass burning in the Amazon Basin during the dry season, is the light haze filling the background. The smoke finds its way up valleys from the basin even into the upper reaches of the Andes (center left of the image). The dry season in parts of the Amazon basin was unusually severe in 1997, which has been attributed to El Niño. The graph below the photo shows the regional precipitation deviations due to El Niño. The cumulative observed precipitation is given by the heavy solid line, and normal precipitation (cumulative) is depicted by the thin dashed line. The bar indicates when this photo and the photos in Figure 5.4 were taken. (Modified from the Climate Prediction Center, 1998.)

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