Lorek, Andreas (2007) EMC/ERH-properties of thin layers of martian analogue soils – First results. In: European Planetary Science Congress 2007, Vol. 2 (EPSC20). European Planetary Science Congress 2007, 2007-08-19 - 2007-08-24, Potsdam.
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Abstract
The water content of soils significantly influences their chemical, physical and biological properties. In equilibrium, this water content can be described by the EMC/ERH ratio (EMC – Equilibrium Moisture Content, ERH – Equilibrium Relative Humidity). In view of Mars, the thin layer of the upper millimetres of the martian surface are of particular interest because this soil interacts directly with the diurnally varying atmospheric humidity, which during night and early morning can reach saturation. Adsorption/desorption of water in the soil and freezing of water can be a consequence. A plate capacitor has been developed to determine EMC/ERH ratios for martian thermo-physical conditions. Two martian soil analogue (Bentonite, JSC Mars 1) have been tested. The measurements have been performed in a temperature range from +25°C to -75°C under air and ambient pressure (Earth) with water partial pressure of 0,12Pa.
Item URL in elib: | https://elib.dlr.de/51724/ | ||||||
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Document Type: | Conference or Workshop Item (Other, Speech) | ||||||
Title: | EMC/ERH-properties of thin layers of martian analogue soils – First results | ||||||
Authors: |
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Date: | August 2007 | ||||||
Journal or Publication Title: | European Planetary Science Congress 2007 | ||||||
Open Access: | Yes | ||||||
Gold Open Access: | No | ||||||
In SCOPUS: | No | ||||||
In ISI Web of Science: | No | ||||||
Volume: | Vol. 2 | ||||||
Editors: |
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Series Name: | EPSC Abstracts 2007 | ||||||
Status: | Published | ||||||
Keywords: | water, EMC, ERH, adsorption, ice, relative humidity | ||||||
Event Title: | European Planetary Science Congress 2007 | ||||||
Event Location: | Potsdam | ||||||
Event Type: | international Conference | ||||||
Event Dates: | 2007-08-19 - 2007-08-24 | ||||||
Organizer: | EuroPlaNet and European Geosciences Union | ||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||
HGF - Program: | Space (old) | ||||||
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 Insitu Science (old) | ||||||
Location: | Berlin-Adlershof | ||||||
Institutes and Institutions: | Institute of Planetary Research | ||||||
Deposited By: | Lorek, Dr.rer.nat. Andreas | ||||||
Deposited On: | 15 Jan 2008 | ||||||
Last Modified: | 31 Jul 2019 19:21 |
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