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Figure 3.
The Yangtze Delta hosts several megacities, including Shanghai (gray area south of the river mouth). Insets: top: A 2009 false-color image of the Three Gorges Dam (the world’s largest) on the Yangtze River, which sequesters much of the sediment and water from reaching the delta; middle: A 1984 Landsat image of the Yangtze River mouth and the city of Shanghai; bottom: The same area in a 2013 image showing the growth of greater Shanghai into a mega-metropolis. Credit: NASA archives.
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