Andrew, has over 20 years experience in applied hydrgology, with scientific interest data QC, statistics, ML, and application of outputs of landsurface modelling (eg. fire/drought risk). He with his Surface Obs and Data assimilation team at the Australian Bureau of Meteorology, develops and uses surface observational datasets, for use nationally for climate analysis, input and assimilation into land/hydrological and numerical weather prediction models. Prior to his current role, he led development and evaluation the Bureau's national water Balance model (AWRA-L) s, that underpins the Bureau's Australian Water Outlook (awo.bom.gov.au). Prior to that he also developed and applied various stochastic drought characterisation and climate change downscaling techniques, following his PhD at the University of Newcastle in stochastic hydrology in 2003.