January 1998 Volume 7 Number 1

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TES Spectra of Mars Properties

Early Results from MGS Thermal Emission Spectrometer. This picture shows what Mars Global Surveyor's TES data look like. This graph is called a "spectrum". The each "squiggly line" represents the spectrum of a different spot on Mars. The first spectrum (top) shows some features caused by minerals on the martian surface. The second spectrum (middle) shows a curve caused by dust in the atmosphere of Mars. The third (bottom) shows a curve caused by water ice clouds in the martian atmosphere. All three spectra show a deep feature caused by the carbon dioxide of Mars' thin atmosphere. "Wavenumber" represents the frequency (like the frequency of a radio station) of infrared energy seen by TES. The "Wavenumber" units are, basically, the number of light vibrations per centimeter.

For TES News Article Related to This Figure, See...

MGS and TES Update, December 19, 1997
by Greg Mehall

TES News is published quarterly by the Arizona Mars K-12 Education Program. This newsletter may be copied for EDUCATIONAL PURPOSES ONLY.

EDITED BY Kenneth S. Edgett, Arizona Mars K-12 Education Program, Arizona State University, Tempe, Arizona, USA.
E-mail: ken.edgett@asu.edu