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Impact of Spectroscopic Line Parameters on Carbon Monoxide Column Density Retrievals from Shortwave Infrared Nadir Observations

Schmidt, Denise and Gimeno Garcia, Sebastian and Schreier, Franz and Lichtenberg, Günter (2015) Impact of Spectroscopic Line Parameters on Carbon Monoxide Column Density Retrievals from Shortwave Infrared Nadir Observations. In: ATMOS 2015 Programme and Abstract Book, p. 112. ATMOS 2015, 8 -12 June 2015, Heraklion, Crete, Greece.

Full text not available from this repository.

Official URL: http://seom.esa.int/atmos2015/files/AbstractBook_ATMOS2015.pdf

Abstract

Among the various input data required for retrieval of atmospheric state parameters from infrared remote sensing observations molecular spectroscopy line data have a central role, because the data quality is critical for the quality of the retrieval product. Here we discuss the impact of the line parameters on vertical column densities (VCD) estimated from short wave infrared nadir observations. Using BIRRA (the Beer InfraRed Retrieval Algorithm) comprising a line-by-line radiative transfer code (forward model) and a separable nonlinear least squares solver for inversion we retrieve carbon monoxide from observations of SCIAMACHY aboard Envisat. Retrievals using the recent versions of HITRAN und GEISA have been performed and the results are compared in terms of residual norms, molecular density scaling factors, their corresponding errors, and the final VCD product. The retrievals turn out to be quite similar for all three databases, so a definite recommendation in favor of one of these databases is difficult for the considered spectral range around 2.3mue. Nevertheless, HITRAN 2012 appears to be advantageous when evaluating the different quality criteria.

Item URL in elib:https://elib.dlr.de/96007/
Document Type:Conference or Workshop Item (Poster)
Title:Impact of Spectroscopic Line Parameters on Carbon Monoxide Column Density Retrievals from Shortwave Infrared Nadir Observations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmidt, DeniseTU Muenchen und DLR-IMFUNSPECIFIED
Gimeno Garcia, Sebastiansebastian.gimenogarcia (at) dlr.deUNSPECIFIED
Schreier, Franzfranz.schreier (at) dlr.deUNSPECIFIED
Lichtenberg, Günterguenter.lichtenberg (at) dlr.deUNSPECIFIED
Date:June 2015
Journal or Publication Title:ATMOS 2015 Programme and Abstract Book
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 112
Editors:
EditorsEmail
UNSPECIFIEDESA
Status:Published
Keywords:Atmospheric remote sensing Molecular spectroscopy Data bases Line-by-line Infrared
Event Title:ATMOS 2015
Event Location:Heraklion, Crete, Greece
Event Type:international Conference
Event Dates:8 -12 June 2015
Organizer:ESA
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 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:20 Apr 2015 08:07
Last Modified:21 Jul 2015 13:47

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