World of Change: Yellow River Delta
January 26, 2010
Once free to wander up and down the coast of the North China Plain, the Yellow River Delta has been shaped by levees, canals, and jetties in recent decades.
Water Watchers
January 21, 2010
In Idaho, NASA’s Landsat satellites are helping officials manage water resources and settle conflicts.
World of Change: Drought Cycles in Australia
December 11, 2009
Drought has taken a severe toll on croplands in Southeast Australia during many years this decade.
Satellites measurements of ice sheet elevation reveal a complex network of subglacial lakes in Antarctica. As water flows from lake to lake, the ice sheet above them rises and falls.
NASA satellite data of regional haze allow EPA scientists to expand their focus from local to regional air quality monitoring and forecasting.
Using satellite data and museum specimen records, scientists predicted the location of 7 new chameleon species in Madagascar.
Astronauts onboard the International Space Station capture nighttime photographs of city lights, spectacular evidence of humanity's existence, our distribution, and our ability to change our environment.
Remotely sensed Earth observations can include everything from sonar measurements used to map the topography of the ocean floor to satellite-based observations of city lights. Combining observations collected by a variety of instruments at different times and places allow scientists to create an otherwise impossible view of the Earth, showing underwater mountain ranges, cloud-free skies, and city lights that are brighter than daylight. Such visualizations are invaluable for interpreting complex data and communicating scientific concepts.