Forschungsbericht 1999-2000   
WWU-Logo Institut für Planetologie
Wilhelm-Klemm-Str. 10
48149 Münster
Tel. (0251) 83-33496
Fax: (0251) 83-36301
e-mail: cormack@uni-muenster.de
WWW: http://ifp.uni-muenster,.de

Geschäftsführender Direktor: Prof. Dr. Elmar K. Jessberger

 
 
 
[Pfeile  gelb] Forschungsschwerpunkte 1999 - 2000
Fachbereich 14 - Geowissenschaften
Institut für Planetologie
Planetenphysik (Prof. Dr. Tilman Spohn)
 


Extase - Experimentelle Thermalsonde für die Anwendung in der
Schnee- und Lawinenforschung und in den Erdwissenschaften
(Experimental thermal probe for applications in snow research and geosciences)

The Institut für Planetologie currently develops a new type of thermal probe, based on a spin-off from a thermal probe developed for the Rosetta lander (MUPUS), that can be used in a wide field of applications in snow research and geosciences. The cylindrical probe penetrates the surface ca. 32 cm and provides a temperature profile (16 sensors) and thermal conductivity profile of the penetrated layers. Major advantages of this type of probe are: (1) no need to excavate material (2) minimized influence of the probe on the temperature field (3) minimized modification of the microstructure (thermal conductivity) of the studied medium (4) good thermal contact (5) very accurate results (6) easy handling. In situ time series of the thermal conductivity may be recorded. In snow, the thermal conductivity is a measure for the mechanical stability of snow packs and thus an indicator of weak layers that may form avelanches. In soil, the thermal conductivity is a measure for soil humidity. Possible applications are (1) agriculture, (2) soil fauna and permafrost (3) monitoring waste deposits and the heat set free by decomposition (4) volcanology (5) ground truth for remote sensing. The project is in its initial stage and should define, design, develop and manufacture a first complete equipment (electronics, software and thermal probe) within the first year, and test this equipment in various fields of research in the second year.

Drittmittelgeber:

Deutsches Zentrum für Luft- und Raumfahrt DLR

Beteiligte Wissenschaftler:

Prof. Dr. Tilman Spohn, Dr. Karsten Seiferlin, Dipl. Geophys. Kathrin Schröer

Veröffentlichungen:

Karsten Seiferlin, Tilman Spohn and Wojciech Marczewski: A new type of thermal probe for applications in snow research and geosciences, CD-ROM edition of Geophysical Research Abstracts, Volume 3, 2001

 
 
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Hans-Joachim Peter
EMail: vdv12@uni-muenster.de
HTML-Einrichtung: Izabela Klak
Informationskennung: FO14AB11
Datum: 2001-06-25