With a project called Global Urban Footprints, scientists use radar imagery to reveal human development around the world.
Minneapolis, United States
The images are presented in three colors — black for urban areas; white for land surface; and grey for water. Minneapolis, Minnesota, is shown here.
A radar image of Tokyo, Japan.
A visible light image of Tokyo, Japan
A radar image of Cairo, Egypt.
Radar imagery of Brussels, Germany.
Ho Chi Minh City, Vietnam
A satellite radar image of Ho Chi Minh City, Vietnam.
Satellite radar image of Delhi, India.
A visible light image of Delhi, India.
Los Angeles, United States
Human development in Los Angeles, California, viewed with satellite radar.
The region around Munich, Germany, viewed with satellite radar.