Continuous real-time analysis of the isotopic composition of precipitation during tropical rain events : insights into tropical convection
Goodkin, Nathalie F.
Ong, Maria Rosabelle
Date of Issue2018
Asian School of the Environment
Earth Observatory of Singapore
To investigate stable isotopic variability of precipitation in Singapore, we continuouslyanalysed theδ‐value of individual rain events from November 2014 to August 2017using an online system composed of a diffusion sampler coupled to Cavity Ring‐DownSpectrometer. Over this period, the average value (δ18OAvg), the lowest value(δ18OLow), and the initial value (δ18OInit) varied significantly, ranging from−0.45 to−15.54‰,−0.9 to−17.65‰, and 0 to−13.13‰, respectively. All 3 values share sim-ilar variability, and events with lowδ18OLowandδ18OAvgvalues have lowδ18OInitvalue.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2018 The Authors. Hydrological Processes Published by John Wiley & Sons Ltd.