River Catchment boundaries in all of the island of Ireland

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.

River basin catchment areas for Melbourne.  This layer has two intended purposes: To provide a readily available amalgamation of MWC_Catchments that make up the river basins within Melbourne Water’s area. Useful for larger scale plans and maps.Data for basin boundaries have been captured by relevant State and Territory authorities from 1:10 000 and 1:250 000 scale source material. The balance of the data are from Geoscience Australia's GEODATA Coast 100K which includes coastlines and State and Territory borders. Topographic Drainage Divisions and River Region boundaries are updated based on current research, data and technology. It references previous work of the Australian Water Resources Management Committee as shown in Australia's River Basins 1997. This work is a collaboration of scientists from the Bureau of Meteorology, Australian National University Fenner School of Environment and Society, CSIRO Water for Healthy Country Flagship and Geoscience Australia.In late 2008, the Bureau of Meteorology (BoM), in partnership with Geoscience Australia, CSIRO and the Australian National University (ANU) commenced the development of the Australian Hydrological Geospatial Fabric (Geofabric). Geofabric is being developed to underpin the Australian Water Resources Information System (AWRIS) within a single, consistent, national geospatial framework for hydrological features. Geoscience Australia's role in the Geofabric is to provide the best available national topographic spatial data for surface water features based on the National Topographic Data and Map Specifications. The river basin boundaries have been aligned (by Melbourne Water) to Melbourne Water Corporation (MWC) drainage catchments, to produce a consistent drainage and waterways catchment dataset to State level, since 2005.NOTE: 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.

Area representing the watershed catchment of a waterway or the hydraulic catchment of an underground stormwater drain for each Melbourne Water drain / catchment number. Captured using available contours and underground stormwater pipe network information. This layer is intended:To enable the identification of the receiving Melbourne Water waterway/drain for any property, area or point.To provide a framework of catchments for hydrologic modelling that can be further divided or amalgamated to suit the needs of the modeller.NOTE: 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.

Catchment area for each Melbourne Water drain. Captured using available contours and drainage network information. This layer has two intended purposes: To enable the identification of the receiving Melbourne Water waterway/drain for any property, area or point. To provide a framework of catchments for hydrologic modelling that can be further divided or amalgamated to suit the needs of the modeller.NOTE: 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.

The Regional Day Return indicator is a measure of regional centre connectivity under the [Future Transport Strategy](https://future.transport.nsw.gov.au/plans/regional-nsw-services-and-infrastructure-plan/customer-outcomes-for-regional-nsw). It aims to provide new connections for regional communities for commuting, attending medical or business appointments, shopping, recreational activities and visiting family and friends. Below is an example of the Regional Day Return indicator catchments  For more information about the trials, the process and datasets used please refer to the Regional Day Return Indicator document.

Thirty Minute City and Metro Strategic Centre Catchments is a foundation of the [Future Transport Strategy](https://future.transport.nsw.gov.au/future-transport-strategy/greater-sydney-network). Thirty Minute City establishes a metropolitan transport network which reinforces the metropolis of three cities, particularly the delivery of a 30-minute city where most residents in each city can access their metropolitan centre or cluster within 30 minutes by public transport. Metro Strategic Centre Catchments develops a network of 34 strategic centres with jobs, goods and services supported by a public transport, walking and cycling network. This would provide residents with a 30-minute public transport service to their nearest strategic centre seven days a week. The image below shows the thirty minute city catchments to the different strategic centre catchments.  The Thirty Minute City and Metro Strategic Centre Catchments Document provides you with detailed information regards the background of this initiative and the datasets used.

The EU Water Framework Directive (2000/60/EC) (WFD) establishes a framework for the protection, improvement and management of surface waters and groundwaters. A new WFD lake catchment layer was created in 2022. New lake catchments were delineated for every WFD lake from the outflow up to very farthest source, i.e. the whole catchment. If multiple lakes exist along the same river system, their catchments overlap.

The EU Water Framework Directive (2000/60/EC) (WFD) establishes a framework for the protection, improvement and management of surface waters and groundwaters. A new lake catchment layer of unnested WFD lake catchments was delineated in 2022. For every WFD lake water body, an un-nested lake catchment was delineated from the outflow up to the next upstream WFD lake (as taken from lake waterbodies layer).

Daily point rainfall values. This data is collected with rainfall telemetry devices installed at the catchment storage dams, and verified with field observations daily.  This data provides daily rainfall observed for the 24hr period from 8am to 8am. This data provides our customers and community with the daily observed rainfall information. This data is best used in long term rainfall analysis at the four major melbourne storage dams (Maroondah; O'Shannassy; Thomson; and Upper Yarra). This dataset is not suitable for event modelling which requires higher frequency observations.NOTE: 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.