GONTZ, Allen1, TIBBY, John2, MARSHALL, Jonathan3, BARR, Cameron2 and HOFMANN, Harald4, (1)San Diego State University, Department of Geological Sciences, San Diego, CA 92182-1020; Department of Civil and Environmental Engineering, Clarkson University, Potsdam, NY 13676, (2)Department of Geography, Environment and Population, University of Adelaide, Adelaide, SA 5005, Australia, (3)Water Planning Ecology, Science Division, Queensland Department of Environment and Science, Dutton Park, QLD 4001, Australia, (4)School of Earth and Environmental Science, University of Queensland, St Lucia, 4072, Australia