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A sensitivity study for far infrared balloon-borne limb emission sounding of stratospheric trace gases

Xu, Jian and Schreier, Franz and Vogt, Peter and Doicu, Adrian and Trautmann, Thomas (2013) A sensitivity study for far infrared balloon-borne limb emission sounding of stratospheric trace gases. Geoscientific Instrumentation, Methods and Data Systems Discussions (GID), 3, pp. 251-303. Copernicus Publications. DOI: 10.5194/gid-3-251-2013 ISSN 2193-0872

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Official URL: http://www.geosci-instrum-method-data-syst-discuss.net/3/251/2013/gid-3-251-2013.html

Abstract

This paper presents a sensitivity study performed for trace gases retrieval from synthetic observations by TELIS (TErahertz and submillimeter LImb Sounder) which is a stratospheric balloon-borne cryogenic heterodyne spectrometer. Issues pertaining to hydroxyl radical (OH) retrieval from the far infrared measurements by the 1.8 THz channel are addressed. The study is conducted by a retrieval code PILS (Profile Inversion for Limb Sounding) developed to solve the nonlinear inverse problems arising in the analysis of infrared/microwave limb sounding measurements. PILS combines a line-by-line forward model with automatic differentiation for computing Jacobians and employs regularized nonlinear least squares inversion. We examine the application of direct and iterative regularization methods and evaluate the performance of single- and multi-profile retrievals. Sensitivities to expected errors in calibration procedure, instrumental knowledge and atmospheric profiles have been analyzed. Nonlinearity effect, inaccurate sideband ratio, and pointing error turned out to be the dominant error sources. Furthermore, the capability of multi-channel simultaneous retrieval from the far infrared and submillimeter data has been investigated. The errors and averaging kernels infer that the quality of the obtained hydrogen chloride (HCl) can be improved by significantly better exploitation of information from the observations.

Item URL in elib:https://elib.dlr.de/83045/
Document Type:Article
Title:A sensitivity study for far infrared balloon-borne limb emission sounding of stratospheric trace gases
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Xu, Jianjian.xu (at) dlr.deUNSPECIFIED
Schreier, Franzfranz.schreier (at) dlr.deUNSPECIFIED
Vogt, PeterUNSPECIFIEDUNSPECIFIED
Doicu, AdrianUNSPECIFIEDUNSPECIFIED
Trautmann, ThomasUNSPECIFIEDUNSPECIFIED
Date:January 2013
Journal or Publication Title:Geoscientific Instrumentation, Methods and Data Systems Discussions (GID)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
Volume:3
DOI :10.5194/gid-3-251-2013
Page Range:pp. 251-303
Editors:
EditorsEmail
Vivekanandan, JothiramUNSPECIFIED
Publisher:Copernicus Publications
ISSN:2193-0872
Status:Published
Keywords:Passive remote sensing; Atmospheric composition; Inverse problems
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Remote Sensing Technology Institute > Experimental Methods
Deposited By: Schreier, Dr.rer.nat. Franz
Deposited On:09 Jul 2013 11:26
Last Modified:02 May 2019 14:17

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