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HCl and ClO in activated Arctic air; first retrieved vertical profiles from TELIS submillimetre limb spectra

de Lange, A. and Birk, Manfred and de Lange, G. and Friedl-Vallon, F. and Kiselev, O. and Koshelets, V. and Maucher, G. and Oelhaf, H. and Selig, A. and Vogt, Peter and Wagner, Georg and Landgraf, J. (2012) HCl and ClO in activated Arctic air; first retrieved vertical profiles from TELIS submillimetre limb spectra. Atmospheric Measurement Techniques, 5, pp. 487-500. Copernicus Publications. DOI: 10.5194/amt-5-487-2012.

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Abstract

The first profile retrieval results of the Terahertz and submillimeter Limb Sounder (TELIS) balloon instrument are presented. The spectra are recorded during a 13-h balloon flight on 24 January 2010 from Kiruna, Sweden. The TELIS instrument was mounted on the MIPAS-B2 gondola and shared this platform with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) and the mini- Differential Optical Absorption Spectroscopy (mini-DOAS) instruments. The flight took place within the Arctic vortex at an altitude of 34 km in chlorine activated air, and both active (ClO) and inactive chlorine (HCl) were measured over an altitude range of respectively 16â��32 km and 10â�� 32 km. In this altitude range, the increase of ClO concentration levels during sunrise has been recorded with a temporal resolution of one minute. During the daytime equilibrium, a maximum ClO level of 2.1�±0.3 ppbv has been observed at an altitude of 23.5 km. This equilibrium profile is validated against the ClO profile by the satellite instrument Microwave Limb Sounder (MLS) aboard EOS Aura. HCl profiles have been determined from two different isotopes â�� H35Cl and H37Cl â�� and are also validated against MLS. The precision of all profiles is well below 0.01 ppbv and the overall accuracy is therefore governed by systematic effects. The total uncertainty of these effects is estimated to be maximal 0.3 ppbv for ClO around its peak value at 23.5 km during the daytime equilibrium, and for HCl it ranges from 0.05 to 0.4 ppbv, depending on altitude. In both cases the main uncertainty stems from a largely unknown non-linear response in the detector.

Document Type:Article
Title:HCl and ClO in activated Arctic air; first retrieved vertical profiles from TELIS submillimetre limb spectra
Authors:
AuthorsInstitution or Email of Authors
de Lange, A.SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
Birk, Manfredmanfred.birk@dlr.de
de Lange, G.SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
Friedl-Vallon, F.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, Germany
Kiselev, O.The Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Science, 11/7 Mokhovaya Street, 125009, Moscow, Russia
Koshelets, V.The Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Science, 11/7 Mokhovaya Street, 125009, Moscow, Russia
Maucher, G.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, Germany
Oelhaf, H.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, Germany
Selig, A.SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
Vogt, Peterpeter.vogt@dlr.de
Wagner, Georggeorg.wagner@dlr.de
Landgraf, J.SRON Netherlands Institute for Space Research, Utrecht, the Netherlands
Date:2012
Journal or Publication Title:Atmospheric Measurement Techniques
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI:10.5194/amt-5-487-2012
Page Range:pp. 487-500
Publisher:Copernicus Publications
Status:Published
Keywords:Remote sensing, stratosphere, HCl, ClO, submillimetre limb sounding, TELIS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Spektrometrische Verfahren und Konzepte der Fernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Experimental Methods
Deposited By: Dr.rer.nat. Georg Wagner
Deposited On:30 May 2012 08:20
Last Modified:12 Dec 2013 21:40

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