The work I am presenting today is on behalf of myself and the Waikato University team and also my collaborator Jonathon Abell, who is a former student of David’s with our group. I am presently working towards a PhD, and some of this work will feed into that. Paul White has given a nice lead in to this talk and we will be leaning heavily on his great work. The project is to model water quality in Lake Tarawera and its response to climate and nutrient loading in particular. Obviously, modelling Lake Tarawera requires conceptualising and understanding the broader hydrological system, so that is a big part of this project too.