Modelo de fracionamento isotópico da água na bacia Amazônica (Primeira aproximação)

Two models on the isotopic fracteonation of water are presented in this paper. In the first model, it is assumed that the only source of water vapour for the Amazon region is the Atlantic Ocean, introduced by the predominant easterly winds. The second model contains the assumption that the forest also serves as a source of water vapour contributing an equal volume of water to the regional rains as the vapour of oceanic origin.