Gloucester river types V02

## **Abstract** 

The dataset was derived by the Bioregional Assessment Programme from the original River Types shapefile provided by the NSW Office of Water for the Gloucester Basin. It has been clipped to the extent of the Gloucester Preliminary Assessment Extent. The source datasets are identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.



For the purposes of identifying the relevance of generic flow response models the streams were broken into five broad groups of flow regimes; the two mentioned earlier "permanent" and "ephemeral" regimes, and three further groups, "perennial and lowly intermittent", "intermittent" and "highly intermittent".  Perennial being streams that typically flow all year round, but during drought will cease to flow during the dryer parts of the year.  Lowly intermittent being streams where they can flow all year round but they typically have a seasonal cease to flow period.  Intermittent being stream where they always cease to flow during the dry seasons of the year.  And highly intermittent where the streams are virtually ephemeral but have extended tails to the events.

The five flow regime groupings are estimated from Ecohydrology classification work published by Land and Water Australia (Pusey et al. 2009).  Two studies carried out as part of the "Ecohydrology regionalisation of Australia" project where used to estimates where the different flow regimes occur.  The study, "Ecohydrology Classification of Australia's Flow Regimes" identified 12 flow regime classes, which did not only capture the frequency or intermittence of flow, but also the seasonality of specific flows (eg "stable winter baseflow", or "unpredictable summer highly intermittent" class).  The study was based on measured streamflow sequences for a select number of gauging station where the flows are essentially natural, and while it considered techniques for predicting the 12 flow classes in points other than the selected sites a spatial layer of flow regime classes was not produced.



Refer to "Sayers, Jon (draft) Water Sharing Plan Environmental Flow Monitoring and Modelling Program manual, NSW Office of Water, Newcastle" for further detail.

## **Dataset History** 

The dataset is derived from the original River Types shapefile provided the NSW Office of Water for the Gloucester Basin. It has been clipped to the extent of the Gloucester Preliminary Assessment Extent using the "clip" function in ArcGIS. 



The source spatial layer is derived from an Ecohydrology classification product, which is used to identify river hydrology classification base of the degree on intermittency flow of the rivers (see section 1.3.2 How Ecohydrology Classification is used).  The riverine features are identified using the River Style&#xAE; mapping (see section 1.3.3 How River Styles&#xAE; is used).



Refer to "Sayers, Jon (draft) Water Sharing Plan Environmental Flow Monitoring and Modelling Program manual, NSW Office of Water, Newcastle" for further detail.

## **Dataset Citation** 

Bioregional Assessment Programme (2015) Gloucester river types V02. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/0b1243c5-2cab-4675-b3f5-6b920daf377b.

## **Dataset Ancestors** 

* **Derived From** [Subcatchment boundaries within and nearby the Gloucester subregion](https://data.gov.au/data/dataset/71a9e120-fc7c-4f51-983f-99a2b10c65b9)

* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)

* **Derived From** [Australian Coal Basins](https://data.gov.au/data/dataset/9d5a8d74-a201-42bd-9d49-3c392244be16)

* **Derived From** [Mean Annual Climate Data of Australia 1981 to 2012](https://data.gov.au/data/dataset/02418c67-f8bb-48a8-88a3-2a5c6b485f78)

* **Derived From** [Natural Resource Management (NRM) Regions 2010](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)

* **Derived From** [BILO Gridded Climate Data: Daily Climate Data for each year from 1900 to 2012](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)

* **Derived From** [BA ALL mean annual flow for NSW - Choudhury implementation of Budyko runoff v01](https://data.gov.au/data/dataset/b20d185f-3d22-4b5d-be87-89ce13505ce7)

* **Derived From** [Geofabric Hydrology Reporting Catchments - V2.1](https://data.gov.au/data/dataset/ce066e36-49ad-4f77-b505-b1d2a4fe9c6a)

* **Derived From** [Bioregional Assessment areas v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)

* **Derived From** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)

* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)

* **Derived From** [Australian Geological Provinces, v02](https://data.gov.au/data/dataset/13ad6933-ee80-4c51-a97b-bac1e8bef16d)

* **Derived From** [NSW Catchment Management Authority Boundaries   20130917](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)

* **Derived From** [Gloucester Coal Basin](https://data.gov.au/data/dataset/a451ad06-e6a9-48bd-ba83-c0a4d191a1f4)

* **Derived From** [Geological Provinces - Full Extent](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)

* **Derived From** [GLO Preliminary Assessment Extent](https://data.gov.au/data/dataset/c0dba74a-feee-440f-a53a-ea31be8479a5)

* **Derived From** [Gloucester River Types v01](https://data.gov.au/data/dataset/4949961d-be38-4d42-9aec-5dfec55fed7b)



Tags: Gloucester subregion, Hunter subregion, New South Wales, WATER-Rivers, inlandWaters
Organization: Bioregional Assessment Program