Researchers at the University of Oxford have released a dataset mapping rivers, including branching systems in floodplains, canals, and deltas—areas often overlooked due to their location in densely populated regions. The dataset, called the Global River Topology Network, is a digital elevation model built using high-resolution satellite imagery and vector maps that represent river segments and the land areas that drain into them. Spanning over 19 million kilometers of waterways at a resolution three times finer than previous datasets, the map is continuously updated to provide information on how much water is flowing through each segment and how high the river sits above the surrounding terrain.
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