GLOBAL CLIMATE CHANGE NASA'S eyes on the Earth

Fuel for Thought

A Caltech researcher hopes to put fuel cells on the fast track.

Read more | Global Climate Change site

 

EARTH IMAGES from the JPL Photojournal

Bodele Sand Dunes, Chad

To better understand how dry landscapes respond to wind-driven changes, scientists can monitor how fast sand dunes migrate. Researchers used pairs of high-resolution optical satellite images to monitor the migration of sand dunes in the Bodele depression in time intervals ranging from one month to 6.5 years.

Full image and caption | More Earth images

Earth Observing Missions

Active Cavity Irradiance Monitor Satellite
Monitors total sun energy that reaches Earth.
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Atmospheric Infrared Sounder on Aqua satellite
Measures air and surface temperature, clouds, humidity.
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Microwave Limb Sounder on Aura satellite
Improves understanding of ozone and precursors.
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Tropospheric Emission Spectrometer on Aura satellite
Observes ozone and gases in the troposphere, the part of atmosphere where we live.
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CloudSat
Revealing the inner secrets of clouds.
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Gravity Recovery and Climate Experiment
Measures Earth's gravitational field.
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Ocean Surface Topography Mission/Jason 2
A follow-on to Jason 1, this mission charts sea level, and its data will help improve climate and weather forecasts.
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Jason-1
Measures ocean level changes and El Niño.
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Quick Scatterometer
Measures ocean surface winds.
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Advanced Spaceborne Thermal Emission and Reflection Radiometer on Terra satellite
Takes high-resolution images, global and local.
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Multi-angle Imaging Spectro-Radiometer on Terra satellite
Images Earth and aerosols from nine angles.
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Shuttle Radar Topography Mission
Acquired the most complete near global mapping of Earth's topography.
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