Water isotopic variability in response to mesoscale convective system over the tropical ocean
In tropical regions, the empirical negative relationship between the isotopic content of precipitation and rainfall amount, known as the 'amount effect', has been used as a rationale for paleo-hydroclimate reconstruction from isotope records. However, there is still no comprehensive physical explanation for this empirical effect. Here, we reconsider the well-known amount effect using newly available isotope data for both surface water vapor and precipitation obtained from shipboard observations.