Chengdu Growth Satellite Images
NASA SATELLITES WATCH CHENGDU GROW
Researchers used NASA's Landsat satellite to measure and analyze urban growth among a global cross-section of 30 mid-sized cities during the 1990s, according to a two-part study presented at the Fall American Geophysical Union Meeting in San Francisco.
Reproduced below are Landsat images of the Chengdu, China metropolitan area for July, 1990, July 2000, and an image showing the change that occurred during the 1990s. Vegetation appears green, water looks blue, and built up land is depicted as purple. The map of urban land in 1990 is shown in yellow in the last panel, while new urban growth from 1990-2000 is shown in orange. Credit: Annemarie Schneider/NASA Landsat.