Sustainable Rivers Audit Valley Layer
URL: https://library-mdba.opendata.arcgis.com/datasets/89ca3eccf0584c8ca0ab6421964cf1d9_0/explore
The 23 SRA valleys were defined based on the Australian Water Resources Council (AWRC) catchment layer, with alteration being done using the following principles:
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Where possible, valley boundaries were mapped along areas of highest elevation (ridges).
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Where possible, river channels and State borders were not used to define the boundaries of a valley ("one river" principle).
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Larger areas with vastly differing hydrology/climate/geomorphology were not combined.
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The hydrologies of combined valleys/zones were linked.
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The much larger River Murray was divided into several valleys.
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