An approach to reduce mapping errors in the production of landslide inventory maps

摘要: Abstract. Landslide inventory maps (LIMs) show where landslides have occurred in an area, and provide information useful to different types of landslide studies, including susceptibility hazard modelling validation, risk assessment, erosion analyses, evaluate relationships between geological settings. Despite recent technological advancements, visual interpretation aerial photographs (API) remains the most common method prepare LIMs. In this work, we present a new semi-automatic procedure that makes use GIS technology for digitization data obtained through API. To test procedure, compare it consolidated mapping method, prepared two LIMs starting from same set API data, which were digitized (a) manually adopting transfer (b) our procedure. Results indicate increases interpreter's overall efficiency by factor 2, reduces significantly subjectivity introduced (manual) digital database, resulting more accurate With positional error decreases with increasing size, following power-law. We expect work will help adopt standards transferring map, contributing production maps.