Study of two metro areas finds where parks, trees and other green spaces are located.
Landsat-based urban extent and phenology indicators provide new information about urban environments.
Socio-economically vulnerable populations are at a higher risk of experiencing urban heat effects.
A new investigative report published by NPR has found that it’s hotter in cities’ low income areas.
Two new Landsat-based data products and a mapping tool provide data on man-made impervious surfaces and urban extents throughout the world.
In a recent Eos Project Update, a group of researchers from Italy and NASA’s Jet Propulsion Lab shared the results of their large Po Plain Experiment (POPLEX).
More and more we hear the term “anthropocene” used to describe the current epoch of our planet when humankind has had a profound impact on Earth. This month, the U.S. Geological Survey has released a Landsat-based report and dataset on anthropogenic land use trends in the U.S. between 1974 and 2012.
Cities are well known hot spots – literally. The urban heat island effect has long been observed to raise the temperature of big cities by 1 to 3°C (1.8 to 5.4°F), a rise that is due to the presence of asphalt, concrete, buildings, and other so-called impervious surfaces disrupting the natural cooling effect provided by vegetation. According to a new NASA study that makes the first assessment of urbanization impacts for the entire continental United States, the presence of vegetation is an essential factor in limiting urban heating.
ProPublica has put together an interactive graphic called Welcome to Las Vegas*” that uses 40 years worth of Landsat data, together with a graphic representation of the city’s changing skyline and its water use statistics.
Land change is a signature activity of human civilization. Since the dawn of history, people have purposefully converted natural landscapes to human-dominated areas. Typical motivations for land change are cultivation (e.g. slash-and-burn fields, rice paddies, modern farms); occupation (villages, cities, housing developments); and other cultural and economic pursuits (roads, schools, airports).
Satellite images since 1987 show substantial environmental change on the island nation of Bahrain, including shifting vegetation patterns and more than a doubling in the extent of urbanization, according to a new analysis by the Geospatial Technologies and Human Rights Project of the American Association for the Advancement of Science (AAAS).
Images from Landsat satellites provided free to the public by the Department of the Interior’s U.S. Geological Survey were the starting points for “a new
• While urban expansion in Europe and America has been stymied by the recent economic slowdown, the developing world’s cities have been gobbling up land.
• Images taken from satellites more than 400 miles above the Earth’s surface are bringing land-cover changes throughout the Chesapeake Bay watershed into tighter focus.
• A recent NASA Technical Report from Stennis Space Center has used Landsat data to document land use changes in Alabama’s Mobile Bay watershed between
• To learn more about the tropical forests that are cleared when urban and residential development spreads, scientists assembled the most comprehensive time series of
For the first time, scientists have used satellite images to demonstrate a link between rapid city growth and rainfall patterns, as well as to assess
A new website featuring Landsat images of 77 international cities has been published by the Socioeconomic Data and Applications Center (SEDAC). By analyzing urban reflectance