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Results from a Comparison of Approximate Analytical Solutions with a Detailed Numerical Inversion Analysis to Determine the Thermal Conductivity of the Regolith at the Mars InSight Landing Site Using Data from HP3 Heating Experiments

Morgan, P. and Grott, Matthias and Spohn, Tilman and Knollenberg, Jörg and Murphy, J. and Nagihara, S. and King, S.D. (2022) Results from a Comparison of Approximate Analytical Solutions with a Detailed Numerical Inversion Analysis to Determine the Thermal Conductivity of the Regolith at the Mars InSight Landing Site Using Data from HP3 Heating Experiments. 53rd Lunar and Planetary Science Conference, 2022-03-07 - 2022-03-11, The Woodlands, Texas.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2022/pdf/2564.pdf

Abstract

A direct measurement of the regolith thermal conductivity at the Mars InSight landing site (4.50°, 132.62°E) was made by heating experiments using the physical properties package (HP3) of the Mars InSight mission. Temperature and time data from these heating experiments, after removal of background temperature variations, were analyzed using a finite element model for which Monte Carlo simulations were run varying regolith thermal conductivity, density, thermal contact conductance between the probe and the regolith to determine parameter combinations that best fit the heating curve. In terms of simulating details of heating experiment this data reduction and numerical inversion is as complete as possible within the current constraints of the experiment. However, no information was included in the model concerning regolith thermal conductivity variations radial to the probe caused during penetration of the probe.

Item URL in elib:https://elib.dlr.de/148676/
Document Type:Conference or Workshop Item (Poster)
Title:Results from a Comparison of Approximate Analytical Solutions with a Detailed Numerical Inversion Analysis to Determine the Thermal Conductivity of the Regolith at the Mars InSight Landing Site Using Data from HP3 Heating Experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Morgan, P.Colorado Geological SurveyColorado School of MinesGolden, USAUNSPECIFIEDUNSPECIFIED
Grott, MatthiasUNSPECIFIEDhttps://orcid.org/0000-0002-8613-7096UNSPECIFIED
Spohn, TilmanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Knollenberg, JörgUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Murphy, J.virginia institute of technology, blacksburg, va, usaUNSPECIFIEDUNSPECIFIED
Nagihara, S.Texas Tech Univ.UNSPECIFIEDUNSPECIFIED
King, S.D.virginia institute of technology, blacksburg, va, usaUNSPECIFIEDUNSPECIFIED
Date:2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:HP3 InSight Thermal Conductivity Regolith
Event Title:53rd Lunar and Planetary Science Conference
Event Location:The Woodlands, Texas
Event Type:international Conference
Event Start Date:7 March 2022
Event End Date:11 March 2022
Organizer:Lunar and Planetary Institute
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project InSight - HP3
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Sensor Systems
Institute of Planetary Research > Planetary Physics
Deposited By: Grott, Dr.rer.nat. Matthias
Deposited On:25 Mar 2022 08:26
Last Modified:24 Apr 2024 20:46

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