Recycling of water in the Amazon Basin: An isotopic study

Eneas Salati, Attilio Dall'Olio, Eiichi Matsui, Joel R. Gat

Research output: Contribution to journalArticlepeer-review

495 Scopus citations


The oxygen‐18 content of precipitation in the Amazon basin is characterized by a very small inland gradient, 0.75 × 10−3 ‰ km−1. This is a consequence of the large contribution of reevaporated moisture to the basin's water balance. A distinct seasonal and regional pattern of stable isotope composition has been recognized and shows the basin to be inhomogeneous from the hydrometeorological point of view. The occasional appearance of very low δ values is believed to be related to the position of the ITCZ rather than to interbasin processes.

Original languageEnglish
Pages (from-to)1250-1258
Number of pages9
JournalWater Resources Research
Issue number5
StatePublished - 1 Jan 1979

ASJC Scopus subject areas

  • Water Science and Technology


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