Spatial and Temporal Variations in Stable Isotopic Compositions of Precipitation in Southeast Asia
In this project, we’re collecting daily precipitation across Southeast Asia and measuring its stable isotopic composition over time. Our study focuses how stable isotopic compositions of precipitation change in Southeast Asia. Such knowledge will help us to interpret past climate archives and understand regional to global climate dynamics, which can be used to predict future scenarios, particularly water resource sustainability. We’ve installed a network of rain stations within Singapore and are collaborating with universities and academic organizations in neighboring countries to install rain collectors at their institutes.
In FY 16, through collective efforts, we have successfully established a network of rain stations in Southeast Asia, recording temperature, rainfall amount and relative humidity while collecting rainwater. The rainwater is being filled in small bottles and sent to us for isotope analysis.
We will continue the campaign for daily precipitation collection in this region between 2017 and 2019, and measure the stable isotope compositions of precipitation. Our study focuses on spatial and temporal variations in stable isotopic compositions. These data record the processes driving the isotopic compositions of precipitation, providing information about the atmospheric and climate processes that control the regional climate. The results will help to improve the physical and chemical components of predictive global and regional climate models.