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In the lower right of the main images is Tehran, the capital and largest city in Iran. The plain Tehran lies in is like a bowl. High mountains are to the north, and the hills of Kahrizak are to the south. Tehran is far from any major river and relies on water supplies located at a distance from the city. In this series of images, the expansion of the city extends in all directions, especially north toward the mountains. Tehran’s population in 1986 was about 6 million. It has grown to almost 13.8 million in 2021.


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July 14, 1977, Landsat 2 (path/row 177/35) — Tehran, Iran
Sept. 16, 1987, Landsat 5 (path/row 165/35) — Tehran, Iran
Aug. 2, 2000, Landsat 7 (path/row 165/35) — Tehran, Iran
Aug. 1, 2011, Landsat 5 (path/row 165/35) — Tehran, Iran
Sep. 15, 2016, Landsat 8 (path/row 165/35) — Tehran, Iran
Aug. 28, 2021, Landsat 8 (path/row 165/35) — Tehran, Iran


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