Size does matter: relationships between image pixel size and landscape process scales

This paper briefly reviews the application of digital elevation models (DEMs) to the study of landscapes. Such studies can involve both the enhancement of DEM images to highlight particular patterns, and the use of DEMs to model attribute values of landscapes. Recognition of palaesurfaces is an example of the first use, while modelling hydrological properties based on slope attributes derived from a DEM is another. Following the review, the paper presents work on the character and scale of slopes and the processes that form them in a study area near Picton, NSW. These slope and process scales are then considered in the context of digital elevation models as a source of data about slopes