In the past three decades, Quito’s urban area has more than quadrupled.
Published Sep 30, 2019
Shanghai is one of several cities on the Yangtze River Delta that has experienced unprecedented growth.
Published Mar 17, 2017
Spain's Ebro Delta has recently experienced tremendous shape-shifting.
Published Mar 13, 2018
For the past few decades, Africans have been moving from rural areas into cities, seeking work. The continent’s urban population has skyrocketed. Nairobi is a prime example of that migration, with its population pushing upward and its boundaries pushing outward.
Published Sep 30, 2016
Chinese engineers changed the main channel through the delta, changing the shape of the land at the river’s mouth.
Published Jan 27, 2010
Croplands and grasslands around New Delhi are being converted into city structures to create one of the fastest urban expansions in the world.
Published Sep 27, 2018
As the shape of river changes over decades, the upper reaches show the most change, particularly with widening and meandering bends.
Published Aug 13, 2018
Tucked inside a bend of the Chao Phraya River, a green oasis stands in the heart of an urban jungle.
Published Mar 1, 2015
In the past few centuries, a river in northwestern Canada stopped wandering and assumed a more direct route to the sea.
Published Sep 4, 2012
The lower portion of the Padma River has wide meandering curves, an indicator of extensive erosion.
Published Aug 28, 2018
In September 2010, water again flowed through this riverbed after several dry years.
Published Oct 8, 2010
The Yellow River Delta coastline along the Gulf of Bohai has always experienced dramatic changes, and those changes continue today. This mosaic of images taken by astronauts aboard the International Space Station shows several things. First, the image shows today’s configuration of the delta of China’s Yellow River, which is one of the most dynamic coastlines on Earth. Second, the scene allows mapping of land use along the coastal plain, including the boundaries of the Shengli Oil Field, China’s second largest oil field. But perhaps the most interesting aspect of this image is the large patch of green water off the northern coast of the delta—a presumed plankton bloom.
Published Aug 23, 2004
The Volga Delta has grown significantly over the past 130 years.
Published Nov 12, 2018
The Ebro River Delta, located along the eastern coast of Spain, is one of the largest wetland areas in the western Mediterranean region.
Published Jul 26, 2004
Time, weather, and human intervention have all shaped the Mississippi Delta in Louisiana, a giant bird’s foot shape protruding into the Gulf of Mexico. The Mississippi River deposits sediment into the ocean, and over 25 years, NASA Landsat satellites observed changes in the delta’s shape.
Published Oct 7, 2007
