Thermosphere, Ionosphere, Mesosphere
Energetics and Dynamics (TIMED)

Science at the Crossroads of the Earth's Atmosphere

TIMED will provide a benchmark for future studies of natural and human-induced changes to the Earth's atmosphere, providing an avenue for early warning of global change.

TIMED, a small remote sensing and imaging spacecraft, will achieve quantitative understanding of the energetics and dynamics of the Mesosphere and Lower Thermosphere-Ionosphere (MLTI) between ~50 and 200 km. The MLTI is a transition region in which many important processes are known to change dramatically, yet there are only sketchy and incomplete measurements of the region. This is where temperature variations, which increase dramatically with altitude, are largest, and where atmospheric motions are dominated by poorly understood gravity waves and tides.

When the mission is complete, it will have:

Links to TIMED instruments:

Click here for a larger, JPEG representation of the figure at the top of the page.

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