PIA19357: What on Mars is a High Thermal-Inertia Surface?


What on Mars is a High Thermal-Inertia Surface?

Caption:

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Map Projected Browse Image
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What do we mean when we describe a surface as having "high thermal inertia"? The term refers to the ability of a material to conduct and store heat, and in planetary science, its measure of the subsurface's ability to store heat during the day and reradiate it during the night.

What causes thermal inertia? It depends on the composition of the terrain that we're studying. Here in Coprates Chasma, the site of this observation, we find indications of such high thermal inertia, so an image at high resolution may help us determine the composition and structure to give us an answer.

Coprates Chasma is located in the huge canyon system, Vallis Marineris.

Background Info:

The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Reconnaissance Orbiter (MRO) Mariner
Instrument Host Mars Reconnaissance Orbiter
Host Type Orbiter Flyby Spacecraft
Instrument High Resolution Imaging Science Experiment (HiRISE)
Detector
Extra Keywords Color, Map, Thermal
Acquisition Date
Release Date 2015-04-08
Date in Caption
Image Credit NASA/JPL-Caltech/University of Arizona
Source photojournal.jpl.nasa.gov/catalog/PIA19357
Identifier PIA19357