In situ methods for measuring thermal properties and heat flux on planetary bodies
Kömle, Norbert I. and Hütter, Erika S. and Macher, Wolfgang and Kaufmann, Erika and Kargl, Günter and Knollenberg, Jörg and Grott, Matthias and Spohn, Tilman and Wawrzaszek, Roman and Banaszkiewicz, Marek and Seweryn, Karoly and Hagermann, Axel (2011) In situ methods for measuring thermal properties and heat flux on planetary bodies. Planetary and Space Science, 59 (8), pp. 639-660. Elsevier Ltd.. DOI: 10.1016/j.pss.2011.03.004.
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The thermo-mechanical properties of planetary surface and subsurface layers control to a high extent in which way a body interacts with its environment, in particular how it responds to solar irradiation and how it interacts with a potentially existing atmosphere. Furthermore, if the natural temperature profile over a certain depth can be measured in situ, this gives important information about the heat flux from the interior and thus about the thermal evolution of the body. Therefore, in most of the recent and planned planetary lander missions experiment packages for determining thermo-mechanical properties are part of the payload. Examples are the experiment MUPUS on Rosetta's comet lander Philae, the TECP instrument aboard NASA's Mars polar lander Phoenix, and the mole-type instrument HP3 currently developed for use on upcoming lunar and Mars missions. In this review we describe several methods applied for measuring thermal conductivity and heat flux and discuss the particular difficulties faced when these properties have to be measured in a low pressure and low temperature environment. We point out the abilities and disadvantages of the different instruments and outline the evaluation procedures necessary to extract reliable thermal conductivity and heat flux data from in situ measurements.
|Title:||In situ methods for measuring thermal properties and heat flux on planetary bodies|
|Journal or Publication Title:||Planetary and Space Science|
|In Open Access:||No|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 639-660|
|Keywords:||Thermal conductivity; Planetary surfaces; Lander missions|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EW - Erforschung des Weltraums|
|DLR - Research area:||Space|
|DLR - Program:||W EW - Erforschung des Weltraums|
|DLR - Research theme (Project):||W - Vorhaben Exploration des Sonnensystems (old)|
|Institutes and Institutions:||Institute of Planetary Research > Planetary Physics|
Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research
|Deposited By:||Lena Noack|
|Deposited On:||08 Nov 2011 10:58|
|Last Modified:||07 Feb 2013 20:40|
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