Jarrah is a PhD student at the University of Melbourne with a MSc in theoretical condensed matter physics. His current research is focused on extending the ENSO record and examining its intra-annual variability using sub-annual paleoclimate data assimilation. Future work will look at examining ENSO decadal variability, exploring utilising a broader base of paleoclimate records to bolster the data assimilation, and implementing an online-DA cycling scheme.