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Drought and Flood Extremes on the Amazon River and in Northeast Brazil, 1790–1900


Fig. 6.

The number of historical reports of dry or wet conditions in and near Brazil for (a) 11 of the 12 driest and (b) 7 of the 11 wettest years from 1790 to 1900 in the precipitation reconstruction. The number of historical sources used to produce these maps is tallied in Table 6 in the online . The tree-ring-reconstructed wet-season precipitation totals based on the C. odorata chronology from Rio Paru-Baixo (Granato-Souza et al. 2020) are also indicated for the (c) dry and (d) wet extremes (upper and lower 10th percentiles; red and blue, respectively). The year 1875 is omitted from the composite map for the dry years [in (c)], and 1891 is omitted from the map for the wet years [in (d)].

Citation: Journal of Climate 36, 20; 10.1175/JCLI-D-23-0146.1



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