Cliff Face Landslip Areas (ASTaR) - Present day - 0.0m SLR

The ASTaR_Present_day_00mSLR dataset is a digital dataset consisting of multiple spatial layer outputs from modelled erosion scenarios.The dataset is recommended for use at the statewide / regional scale along the Victorian coastline. Application of the data should be guided by the accompanying Victorian Coastal Cliff Assessment technical reports (Tonkin & Taylor 2023) and expert advice. The product is not suitable for individual property scale assessments. \n\nASTaR have been derived based on the geological unit type and cliff height. The methodology for defining ASTaR is\na new method undertaken at a high level and based on the existing cliff height and a defined slope\nto identify the possible seaward extent of talus runout. For this state-wide/regional scale assessment, single values were derived for each component. This ‘building-block’ approach (ie: a combination of individual parameters) is expected to produce ‘upper bound’, conservative results, which identifies areas potentially exposed to coastal erosion, cliff instability and cliff slumping/talus

ASTaR_Present_day_00mSLR 数据集是一套由多组侵蚀情景模型生成的多个空间图层输出构成的数字化数据集。本数据集推荐应用于维多利亚州海岸线的全州/区域尺度研究。使用该数据集时，需遵循配套的《维多利亚州海岸悬崖评估技术报告》（Tonkin & Taylor 2023）及专家指导意见。本数据集不适用于单个物业尺度的评估。

ASTaR的推导基于地质单元类型与悬崖高度。定义ASTaR的方法为一种全新的高阶方法，其依托现有悬崖高度与预设坡度，识别岩屑运移的潜在向海范围。针对本次全州/区域尺度评估，研究人员为各组分推导得到单一数值。这种“积木式”方法（即组合各独立参数）预计将生成“上限保守”结果，可识别出潜在遭受海岸侵蚀、悬崖失稳及悬崖崩塌/岩屑崩落影响的区域。