Abstract
The purpose of this paper is to describe recent developments to SimCLIM, a software model system that simulates, both temporally and spatially, the impacts of both climate variability and change. These developments provide greater versatility in conducting climate impact assessments that span global, regional and local scales and that allow issues of adaptation to climatic risks to be examined through simulation techniques. In particular, these new tools allow the incremental risks and costs arising from climate change, as compared to those from current natural variability, to be identified and assessed. The new developments are illustrated in two examples: coastal flooding from tropical cyclones in the Cook Islands; and a SimCLIM linkage with Danish Hydraulic Institute (DHI) models and their application to a catchment in New Zealand.