elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

EMC/ERH-properties of thin layers of martian analogue soils – First results

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.

[img]
Preview
PDF
46kB
[img] MS PowerPoint
4MB

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/
Document Type:Conference or Workshop Item (Other, Speech)
Title:EMC/ERH-properties of thin layers of martian analogue soils – First results
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lorek, AndreasUNSPECIFIEDUNSPECIFIED
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:
EditorsEmail
EuroPlaNet, UNSPECIFIED
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

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.