A Landsat image depicting high flood conditions on 2 February 1974 on the Darling River flood plain in the Bourke region of New South Wales, Australia, shows streamlines of light and dark toned water due to different sediment concentrations and particle size. These streamlines, when observed at different flood stages, define the spatial pattern of flooding by showing the location of areas of active flow or #x2018;floodways#x2019;.
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