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Nature Geoscience 2, 607 (1 September 2009) | doi:10.1038/ngeo626

Climate science: Andean rainfall

Heike Langenberg

Unlike other mid-latitude mountain ranges of high elevation, the Andes do not seem to significantly modify the large-scale atmospheric circulation around them. Instead, the prominent Bolivian high-pressure system that dominates South American meteorology is ruled largely by heating over the Amazon basin.