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Frequency of Commonwealth environmental water - wetland and floodplain inundation

Created 02/11/2022

Updated 21/08/2025

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Extent of surface water (outside of river channels) thought to contain Commonwealth environmental water either alone or in partnership with other water holders. Mapped as the annual frequency of inundation. Raster data set derived from Landsat and Sentinel-2 observations of water extent checked annually with water managers. Excludes natural flooding and inundation by other sources of environmental water where there was not a component of Commonwealth environmental water.

Compiled by the Flow-MER Basin scale project.

2014-2019 data based on information from the Long Term Intervention Monitoring (LTIM) project.

The CEWH’s Flow-MER program examines the contribution of Commonwealth environmental water to the environmental objectives of the Basin Plan 2012 (Basin Plan) and is assisting the CEWH to demonstrate environmental outcomes and adaptively manage the water holdings. For more information on methods and reporting using these data see https://www.dcceew.gov.au/water/cewo/monitoring/mer-program.

Acknowledgement

The Commonwealth Environmental Water Holder and Flow-MER program participants acknowledge the First Nations peoples as the Traditional Owners and Custodians of the lands, waterways and skies of the Murray-Darling Basin. We respect their continuing connection to culture and Country, and we thank them for their knowledge and science and the values reflected in these data.

Citation

CEWH (2024) Frequency of Commonwealth environmental water - wetland and floodplain inundation 2014-2021. Flow-MER Program. Commonwealth Environmental Water Holder, Australian Government Department of Climate Change, Energy, the Environment and Water. Sourced from https://data.gov.au/data/dataset/flow-mer-cew-inundation on [date-sourced].

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Additional Info

Field Value
Title Frequency of Commonwealth environmental water - wetland and floodplain inundation
Language English
Licence Creative Commons Attribution Share Alike 4.0 International
Landing Page https://data.gov.au/data/en/dataset/6a64f124-035b-4f71-9bc5-4bbb322b0267
Contact Point
Commonwealth Environmental Water Holder
cewomonitoring@dcceew.gov.au
Reference Period 01/07/2014 - 30/06/2022
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        146.9,
        -24.6
      ],
      [
        148.1,
        -24.9
      ],
      [
        148.2,
        -26.1
      ],
      [
        151.0,
        -26.2
      ],
      [
        152.5,
        -28.2
      ],
      [
        151.7,
        -31.3
      ],
      [
        149.7,
        -32.3
      ],
      [
        150.4,
        -32.9
      ],
      [
        149.5,
        -36.5
      ],
      [
        148.5,
        -35.8
      ],
      [
        148.2,
        -36.9
      ],
      [
        146.5,
        -37.6
      ],
      [
        142.6,
        -37.4
      ],
      [
        140.9,
        -35.4
      ],
      [
        139.5,
        -35.6
      ],
      [
        139.8,
        -36.5
      ],
      [
        138.6,
        -35.4
      ],
      [
        138.9,
        -33.0
      ],
      [
        143.2,
        -30.7
      ],
      [
        145.2,
        -25.7
      ],
      [
        146.9,
        -24.6
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal data.gov.au
Geospatial Topics
  • Inland waters

Data Source

This dataset was originally found on data.gov.au "Frequency of Commonwealth environmental water - wetland and floodplain inundation". Please visit the source to access the original metadata of the dataset:
https://data.gov.au/data/dataset/flow-mer-cew-inundation