Catchments - Major Catchments of Melbourne's River Basins

Area representing the watershed / hydraulic catchment of major waterways. The "Major Catchment" layer divides each Primary catchment into the tributaries of a primary river. The delineation of a Major Catchment is by the watershed (natural or constructed) of a major drain or watercourse. Examples of major catchments are: Tributary of Yarra River, Darebin Creek, Tarago River and Corhanwarrbul Creek. This dataset provides a consolidated and consistent set of drainage catchments covering the entire Port Phillip and Westernport catchment area (Melbourne Water’s area of responsibility for waterways and drainage). The primary purpose of this layer is for the hydraulic modelling of catchments and waterways, and/or calculations. Additional uses: Asset creation and numberingFlood Plain MappingDrainage Scheme Creation and ReviewsWater Resource ManagementResponding to Land Development QueriesNOTE: Whilst every effort has been taken in collecting, validating and providing the attached data, Melbourne Water Corporation makes no representations or guarantees as to the accuracy or completeness of this data. Any person or group that uses this data does so at its own risk and should make their own assessment and investigations as to the suitability and/or application of the data. Melbourne Water Corporation shall not be liable in any way to any person or group for loss of any kind including damages, costs, interest, loss of profits or special loss or damage, arising from any use, error, inaccuracy, incompleteness or other defect in this data.

本数据集用于表征主要水道的流域与水力汇水区。「主要汇水区（Major Catchment）」图层将每个一级汇水区（Primary catchment）划分为主干河流的支流流域。主要汇水区的划定以主要排水渠或水道的天然或人工修建流域为依据。主要汇水区的示例包括：雅拉河支流、达宾溪（Darebin Creek）、塔拉戈河（Tarago River）以及科汉瓦布尔溪（Corhanwarrbul Creek）。
本数据集整合形成了一套统一规范的排水汇水区数据，覆盖整个菲利普港（Port Phillip）与韦斯特波特（Westernport）汇水区——即墨尔本水务（Melbourne Water）负责水道与排水事务的管辖范围。
该图层的核心用途为开展汇水区与水道的水力建模及相关计算。附加用途包括：
• 资产创建与编号
• 洪泛区制图
• 排水方案编制与评审
• 水资源管理
• 回应土地开发相关咨询

注意事项：尽管墨尔本水务公司（Melbourne Water Corporation）在收集、验证及提供本附属数据时已尽最大努力，但不对该数据的准确性与完整性作出任何声明或保证。任何使用本数据的个人或团体需自行承担使用风险，并应自行评估和调研该数据的适用性及应用方式。墨尔本水务公司不会就因本数据的任何使用、错误、不准确、不完整或其他缺陷所导致的任何形式的损失（包括损害赔偿、费用、利息、利润损失或特殊损失与损害），向任何个人或团体承担任何责任。