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Inverse problems in space remote sensing: A sensitivity study on the atmospheres of Earth-like exoplanets

Vasquez, Mayte and Schreier, Franz and Gimeno-Garcia, Sebastian and Hedelt, Pascal and Trautmann, Thomas (2014) Inverse problems in space remote sensing: A sensitivity study on the atmospheres of Earth-like exoplanets. European Planetary Science Congress 2014, 8-12 Sep 2014, Cascais, Portugal.

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Official URL: http://meetingorganizer.copernicus.org/EPSC2014/poster_program/16839


More than one thousand exoplanets have been discovered in the past two decades, with some dozen of them in the host stars’ habitable zone and with size and mass similar to Earth. Furthermore, spectra of exoplanets become available with reasonable quality (resolution and noise) that trigger the question of remote sensing of the planet’s atmosphere. The objective of this sensitivity study is to identify the optimal state vector representing the atmosphere in the inverse problem. Solving the inverse problem will ultimately allow to characterize the planet and determine its habitability. Using a high resolution infrared radiative transfer code with a line-by-line molecular absorption model, we calculate synthetic spectra of exoplanets orbiting dwarf stars. Key parameters describing the atmosphere (i.e., molecular abundances, temperature, pressure) are identified and the Jacobians (i.e. partial derivatives of the spectra) are evaluated to investigate the feasibility to retrieve the state of the planetary atmosphere.

Item URL in elib:https://elib.dlr.de/91312/
Document Type:Conference or Workshop Item (Poster)
Title:Inverse problems in space remote sensing: A sensitivity study on the atmospheres of Earth-like exoplanets
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Vasquez, Maytemayte.vasquez (at) dlr.deUNSPECIFIED
Schreier, Franzfranz.schreier (at) dlr.deUNSPECIFIED
Gimeno-Garcia, Sebastiansebastian.gimenogarcia (at) dlr.deUNSPECIFIED
Hedelt, Pascalpascal.hedelt (at) dlr.deUNSPECIFIED
Trautmann, Thomasthomas.trautmann (at) dlr.deUNSPECIFIED
Date:12 September 2014
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Series Name:EPSC Abstracts 2014
Keywords:Atmospheric Radiative Transfer Line-by-line Remote sensing
Event Title:European Planetary Science Congress 2014
Event Location:Cascais, Portugal
Event Type:international Conference
Event Dates:8-12 Sep 2014
Organizer:Europlanet RI
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Schreier, Dr.rer.nat. Franz
Deposited On:12 Nov 2014 15:34
Last Modified:31 Jul 2019 19:48

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