GIFs: Shanghai Adds 10 Manhattans

Michael Animation, Data & Graphics, Photo April 1, 2017

Before I did my googling and math, I couldn’t believe it but here it is: Shanghai has added as much land as 10 Manhattans over the past couple of decades. Here are some satellite images as witness:

The number of people living in Shanghai is not the only thing about the city that has increased dramatically since the 1980s. The amount of land available to its residents has grown as well. By building seawalls just off the coast to capture outflowing sediment, and by using dredging equipment that sucks up and moves large volumes of sand, Shanghai has added well over 580 square kilometers (220 square miles) of land to its shorelines since 1985.

Such projects have changed the face of Shanghai. As seen in these Landsat images, the city sits on a peninsula south of the Yangtze River that has the rough shape of a nose. Notice how much the “tip” of the nose lengthened between 1984 and 2016. [Full post on NASA Earth Observatory]

Below are the Yangtze River delta map showing composites of 1984-88 and 2013-17, followed by

Toward the southeast, more new land has emerged from the sea. Over a 15-year period, China built an $18 billion deep-water port on the Greater and Lesser Yangshan islands in Hangzhou Bay. The port is connected to the mainland by a 32.5 kilometer (20.2 mile) bridge—among the longest in the world—that was completed in 2005. As the images show, little of the port’s land existed in 1984. After construction, Shanghai’s port, which includes facilities along the Huangpu and Yangtze rivers as well, became the busiest in the world. [Full post on NASA Earth Observatory]