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A megacity is a region that has a population greater than 10 million. It seems the term was created for cities like Shanghai, China. In 2000, the fast-growing city was home to 16.4 million people. Shanghai’s population exceeded 22 million in 2019. It’s the largest city in China and 8th largest in the world.

Shanghai sits on the Yangtze River delta along China’s eastern coast. The city covers about 6,333 square kilometers, an area slightly more than that covered by Toronto, Canada (5,901 square kilometers). But Shanghai has a population nearly 3.5 times higher than Toronto.

Much of Shanghai’s growth has been in suburban and outlying districts. The Landsat imagery makes this clear as the smaller populated areas outside of Shanghai expand and then are absorbed by the urban expansion. Growth is also notable along transportation systems. Landsat data provides insight into urban planning and sustainable development.


Every picture has a story to tell
Apr. 23, 1984, Landsat 5 (path/row 118/38,39) — Shanghai, China
Aug. 11, 1989, Landsat 5 (path/row 118/38,39) — Shanghai, China
Aug. 12, 1995, Landsat 5 (path/row 118/38,39) — Shanghai, China
Sept. 18, 2000, Landsat 7 (path/row 118/38,39) — Shanghai, China
July 19, 2004, Landsat 5 (path/row 118/38,39) — Shanghai, China
Sept. 19, 2009, Landsat 5 (path/row 118/38,39) — Shanghai, China
Nov. 4, 2014, Landsat 8 (path/row 118/38,39) — Shanghai, China
Aug. 24, 2017, Landsat 8 (path/row 118/38,39) — Shanghai, China
July 29, 2019, Landsat 8 (path/row 118/38,39) — Shanghai, China
Apr. 29, 2021, Landsat 8 (path/row 118/38,39) — Shanghai, China
Apr. 8, 2022, Landsat 9 (path/row 118/38,39) — Shanghai, China


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References (Earthshot Overview/Parent Only)

Architecture of von Gerkan, Marg and Partners, [n.d.], Lingang New City: Company Web page at (Accessed October 27, 2014.)

Cox, W., 2011, The Evolving Urban Form—Shanghai: New Geography Web page at (Accessed October 27, 2014.)

Daily Mail, 2013, Ever Wondered How Everything You Buy from China Gets Here? Welcome to the Port of Shanghai—The Size of 470 Football Pitches: Daily Mail Online (available at (Accessed October 27, 2014.)

Demographia, 2021, Demographia World Urban Areas—Built Up Urban Areas or World Agglomerations (17th ed.): Belleville, Ill., Demographia, 100p., accessed on May 24, 2021, at

Evans, C.A., 2012, Shanghai at Night—A Growing City: NASA Earth Observatory, available at (Accessed October 27, 2014.)

Mi, H., Qiao, G., Wang, W., and Hong, Y., 2019, Analysis of urban growth from 1960 to 2015 using historical DISP and Landsat time series data in Shanghai: Arabian Journal of Geosciences, v. 12, no. 250,

Qin, Q., Mei, G., and Xu, G., 2013, Bridge Engineering in China, in Chen, W-F., and Duan, L., eds., Handbook of International Bridge Engineering: Boca Raton, Fla., CRC Press, p. 939.

United Nations, 2014, World Urbanization Prospects—The 2014 Revision, Highlights: United Nations, Department of Economic and Social Affairs, Population Division, available online at (Accessed November 3, 2014.)

Voiland, A., 2016, Sprawling Shanghai: NASA Earth Observatory World of Change, accessed on September 20, 2017, at

Wang, E., 2013, Gateway to the World: Insight Magazine, accessed October 27, 2014, at

Zhang, H., Qi, Z., Ye, X., Cai, Y., Ma, W., and Chen, M., 2013, Analysis of Land Use/Land Cover Change, Population Shift, and Their Effects on Spatiotemporal Patterns of Urban Heat Islands in Metropolitan Shanghai, China, v. 44, p. 121–133. (Also available at

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