Stable isotope anatomy of tropical cyclone Ita, North-Eastern Australia, April 2014.

ABSTRACT: The isotope signatures registered in speleothems during tropical cyclones (TC) provides information about the frequency and intensity of past TCs but the precise relationship between isotopic composition and the meteorology of TCs remain uncertain. Here we present continuous δ18O and δ2H data in rainfall and water vapour, as well as in discrete rainfall samples, during the passage of TC Ita and relate the evolution in isotopic compositions to local and synoptic scale meteorological observations. High-resolution data revealed a close relationship between isotopic compositions and cyclonic features such as spiral rainbands, periods of stratiform rainfall and the arrival of subtropical and tropical air masses with changing oceanic and continental moisture sources. The isotopic compositions in

SUBMITTER: Munksgaard NC 

PROVIDER: S-EPMC4351091 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature