Techniques for landslide risk management in Australia have evolved considerably since the publication of the first formal process in 1985. The Australian Geomechanics Society recently published the next generation of updated landslide risk documents in 2007. The estimation of landslide likelihood is fundamental to the outcome of the landslide risk management process. However, experienced practitioners still regard this component as one of the most difficult and challenging aspects of the assessment as it requires information about the age of landslides, an understanding of landscape processes and the rate of slope evolution. Such information is difficult to obtain and is often not a core competency among practitioners undertaking landslide risk assessment. In order to provide insight into the methods of estimating and constraining landslide likelihood, a number of different geomorphological approaches are herewith reviewed through a series of selected Australian cases studies. Whilst the case studies highlight inherent limitations and uncertainties they also demonstrate how geomorphological studies can provide validation and constraints to a quantification of likelihood and ultimately risk.
The Corangamite NRM Planning Portal has been developed to support the creation of local catchment plans in the Corangamite region. It is part of an interoperable web-GIS maintained by Federation University Australia. The Corangamite Catchment Management Authority (CMA), in collaboration with the Centre for eResearch and Digital Innovation(CeRDI) at Federation University Australia (FedUni), the Woady Yaloak Catchment Group (WYCG) and the Surf Coast and Inland Plains Network (SCIPN) is undertaking this pilot project to develop Local Catchment Plans for catchment management in the Corangamite region. This pilot project is testing how online mapping can be used to match local and regional priorities for catchment management in the Corangamite Catchment Management Authority region. The objective is to empower Landcare networks, community groups and stakeholders with the capability to identify ‘joint priorities’ for progressing in partnership. The project also provides access to a considerable knowledge base of spatial data, information and knowledge, to assist stakeholders in setting their local priorities. Project aim The primary aim is to spatially overlay local and regional natural resource management (NRM) priorities to identify ‘joint priorities’ for potential partnership and investment. The initial tasks of developing local priorities was undertaken by the respective Networks and included participation by around 100 community members at each Network to identify 5-6 year Strategic Plans. The collaborators have the common aim of building web-based tools for the CMA community to easily access the most current environmental datasets applicable to integrated catchment management and modelling. The projects promote the sharing of knowledge and information through the internet, allowing people to gain insights, present ideas, advice and information in a friendly and easy to use format, available at people’s convenience. It allows the Corangamite CMA community to grow their knowledge and share their thoughts and enthusiasm for their landscapes. It will also help guide groups and individuals to develop on-ground action plans through the provision of standardised templates and authoritative advice on a range of matters in catchment management, agricultural soil management, nature conservation and on-ground activities.