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Stratospheric Bromine: Budget and partitioning from balloon-borne observations with the multi-instrument remote sensing payload MIPAS-B/TELIS/mini-DOAS

Oelhaf, H. and Birk, Manfred and Butz, A. and Ebersoldt, A. and Friedl-Vallon, F. and Gulde, T. and Kleinert, Anne and Kazarski, S. and Kiselev, O. and Maucher, G. and Nordmeyer, H. and Pfeilsticker, K. and Sinnhuber, B.-M. and Wagner, Georg and Wetzel, Gerald (2015) Stratospheric Bromine: Budget and partitioning from balloon-borne observations with the multi-instrument remote sensing payload MIPAS-B/TELIS/mini-DOAS. 22nd ESA Symposium on European Rocket and Balloon Programmes and Related Research, 7.-12. Juni 2015, Tromsö, Norwegen.

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Abstract

Bromine-containing substances can decompose the ozone layer. Although the abundance of stratospheric bromine is by about two orders of magnitude smaller than that of the better-known ozone-depleting chlorine, its effect on the ozone layer is comparably hazardous. Moreover, against the background of abating levels of chlorine in the stratosphere, bromine will become more and more important due to its less regulated emissions and natural sources. The two major inorganic bromine species in the lower stratosphere are bromine oxide (BrO) and bromine nitrate (BrONO2) - the relative abundances of which are mainly controlled by fast photochemical processes. While BrO has first been observed around 20 years ago, BrONO2 has been detected by satellite limb observations in the mid-infrared spectral region only recently (in 2008). Dedicated to the simultaneous observation of BrO and BrONO2 including their diurnal variability, a balloon flight took place from Timmins (49 °N, Canada) in September 2014. The paylaod consisted of three spectrometers covering the UV-VIS, the mid-infrared and the sub-mm/microwave spectral region. These instruments complement each other ideally in measuring stratospheric substances: The MIPAS-B infra-red spectrometer of the KIT Institute of Meteorology and Climate, the far-infrared/sub-mm spectrometer TELIS of the German Aerospace Center (DLR), and the UV/vis spectrometer mini-DOAS of Heidelberg University. The remote sensing method allows for the two- and three-dimensional daytime-dependent continuous measurement of trace gases. In this way, photochemical reactions of the species involved can be studied, which is an important prerequisite for improving chemistry and climate models. The campaign was embedded in an international balloon campaign under cooperation between the French and Canadian Space Agencies CNES and CSA. The talk will outline scientific motivation, payload and measurement strategy; after that it will present results in terms of time- and height-dependent distributions of BrO and BrONO2 along with species closely linked to the bromine chemistry such as NO2 together with a comprehensive error estimation and retrieval diagnostics. Results from the balloon measurements will be put in perspective to previous observations and to 3-dimensional model calculations.

Item URL in elib:https://elib.dlr.de/99897/
Document Type:Conference or Workshop Item (Speech)
Title:Stratospheric Bromine: Budget and partitioning from balloon-borne observations with the multi-instrument remote sensing payload MIPAS-B/TELIS/mini-DOAS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Oelhaf, H.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Birk, Manfredmanfred.birk (at) dlr.deUNSPECIFIED
Butz, A.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Ebersoldt, A.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Friedl-Vallon, F.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Gulde, T.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Kleinert, AnneKarlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Kazarski, S.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Kiselev, O.The Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Science, 11/7 Mokhovaya Street, 125009, Moscow, RussiaUNSPECIFIED
Maucher, G.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Nordmeyer, H.Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, GermanyUNSPECIFIED
Pfeilsticker, K.IUP, Univ. HeidelbergUNSPECIFIED
Sinnhuber, B.-M.Karlsruhe Institute of Technology (KIT), Karlsruhe, GermanyUNSPECIFIED
Wagner, Georggeorg.wagner (at) dlr.deUNSPECIFIED
Wetzel, GeraldKarlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research (IMK), 76021 Karlsruhe, GermanyUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Keine Stichwörter
Event Title:22nd ESA Symposium on European Rocket and Balloon Programmes and Related Research
Event Location:Tromsö, Norwegen
Event Type:international Conference
Event Dates:7.-12. Juni 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 > Experimental Methods
Deposited By: Birk, Manfred
Deposited On:25 Nov 2015 15:06
Last Modified:10 May 2016 23:35

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