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Eneas Salati

person · earth · Brazil

The Brazilian scientist who led the isotope hydrology work that established Amazonian moisture recycling as a measured quantity rather than a hypothesis. The insight behind the 1979 study is elegant and worth stating plainly. Water evaporating from the ocean and water transpired by plants carry different ratios of heavy to light isotopes, and rain progressively depletes an air mass of its heavier isotopes as it moves inland. If Atlantic vapour were the only source, the isotopic signature of Amazonian rainfall would become steadily lighter with distance from the coast along a predictable curve. It does not. The departure from that curve is the quantitative fingerprint of water that has been through a tree, and its size is the recycled fraction. Everything in this Journey about flying rivers and dieback thresholds descends from that measurement.

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  1. Story
  2. The Brazilian scientist who led the isotope hydrology work that established Amazonian moisture recycling as a measured quantity rather than a hypothesis. The insight behind the 1979 study is elegant and worth stating plainly. Water evaporating from the ocean and water transpired by plants carry different ratios of heavy to light isotopes, and rain progressively depletes an air mass of its heavier isotopes as it moves inland. If Atlantic vapour were the only source, the isotopic signature of Amazonian rainfall would become steadily lighter with distance from the coast along a predictable curve. It does not. The departure from that curve is the quantitative fingerprint of water that has been through a tree, and its size is the recycled fraction. Everything in this Journey about flying rivers and dieback thresholds descends from that measurement.
  3. Knowledge
  4. Moisture Recycling
  5. Eneas Salati
  6. Connections
  7. Moisture Recycling
  8. Isotope study quantifies Amazonian moisture recycling
  9. Amazon Basin
  10. Flying Rivers (Aerial Rivers)
  11. Cascading Moisture Recycling
  12. Amazon Tall Tower Observatory (ATTO)
  13. Amazon Deforestation
  14. The Amazon Dieback Threshold
  15. Eneas Salati
  16. Isotope study quantifies Amazonian moisture recycling
  17. The Amazon Tall Tower Observatory begins operating
  18. Evidence
  19. Supports the claim that a large fraction of Amazonian rainfall is water recycled by the forest, established from the isotopic composition of rainfall across the basin. V55 verification basis: this session had no WebSearch budget and the egress proxy blocked every research domain, so the paper was neither retrieved nor read; the citation and the finding are stated from the producing model's knowledge and the exact recycled fraction is deliberately not quoted.
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