Articles | Volume 10, issue 11
https://doi.org/10.5194/amt-10-4209-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-10-4209-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
08 Nov 2017
Research article |
| 08 Nov 2017
The novel HALO mini-DOAS instrument: inferring trace gas concentrations from airborne UV/visible limb spectroscopy under all skies using the scaling method
Tilman Hüneke
CORRESPONDING AUTHOR
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Oliver-Alex Aderhold
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Jannik Bounin
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Marcel Dorf
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: Max-Planck-Institute for Chemistry, Mainz, Germany
Eric Gentry
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: Department of Astronomy and Astrophysics, University of California Santa Cruz, Santa Cruz, California, USA
Katja Grossmann
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: Joint Institute For Regional Earth System Science and Engineering (JIFRESSE), University of California Los Angeles, Los Angeles, California, USA
Jens-Uwe Grooß
Forschungszentrum Jülich, Institute of Energy and Climate Research – Stratosphere (IEK-7), Jülich, Germany
Peter Hoor
Institut für Physik der Atmosphäre, University of Mainz, Mainz, Germany
Patrick Jöckel
Deutsches Zentrum für Luft- und Raumfahrt, Institut für die Physik der Atmosphäre, Oberpfaffenhofen, Germany
Mareike Kenntner
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: Deutsches Zentrum für Luft- und Raumfahrt, Institut für die Physik der Atmosphäre, Oberpfaffenhofen,
Germany
Marvin Knapp
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Matthias Knecht
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Dominique Lörks
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Sabrina Ludmann
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: IFEU – Institut für Energie- und Umweltforschung Heidelberg GmbH, Heidelberg, Germany
Sigrun Matthes
Deutsches Zentrum für Luft- und Raumfahrt, Institut für die Physik der Atmosphäre, Oberpfaffenhofen, Germany
Rasmus Raecke
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Marcel Reichert
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Jannis Weimar
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
now at: Physikalisches Institut, University of Heidelberg, Heidelberg, Germany
Bodo Werner
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Andreas Zahn
Karlsruhe Institute of Technology (KIT), Institute for Meteorology and Climate Research, Karlsruhe, Germany
Helmut Ziereis
Deutsches Zentrum für Luft- und Raumfahrt, Institut für die Physik der Atmosphäre, Oberpfaffenhofen, Germany
Klaus Pfeilsticker
Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany
Abstract. We report on a novel six-channel optical spectrometer (further on called mini-DOAS instrument) for airborne nadir and limb measurements of atmospheric trace gases, liquid and solid water, and spectral radiances in the UV/vis and NIR spectral ranges. The spectrometer was developed for measurements from aboard the German High-Altitude and Long-Range (HALO) research aircraft during dedicated research missions. Here we report on the relevant instrumental details and the novel scaling method used to infer the mixing ratios of UV/vis absorbing trace gases from their absorption measured in limb geometry. The uncertainties of the scaling method are assessed in more detail than before for sample measurements of NO2 and BrO. Some first results are reported along with complementary measurements and comparisons with model predictions for a selected HALO research flight from Cape Town to Antarctica, which was performed during the research mission ESMVal on 13 September 2012.
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How to cite. Hüneke, T., Aderhold, O.-A., Bounin, J., Dorf, M., Gentry, E., Grossmann, K., Grooß, J.-U., Hoor, P., Jöckel, P., Kenntner, M., Knapp, M., Knecht, M., Lörks, D., Ludmann, S., Matthes, S., Raecke, R., Reichert, M., Weimar, J., Werner, B., Zahn, A., Ziereis, H., and Pfeilsticker, K.: The novel HALO mini-DOAS instrument: inferring trace gas concentrations from airborne UV/visible limb spectroscopy under all skies using the scaling method, Atmos. Meas. Tech., 10, 4209–4234, https://doi.org/10.5194/amt-10-4209-2017, 2017.
Short summary
This paper describes a novel instrument for the aircraft-borne remote sensing of trace gases and liquid and solid water. Until recently, such measurements could only be evaluated under clear-sky conditions. We present a characterization and error assessment of the novel "scaling method", which allows for the retrieval of absolute trace gas concentrations under all sky conditions, significantly expanding the applicability of such measurements to study atmospheric photochemistry.
This paper describes a novel instrument for the aircraft-borne remote sensing of trace gases and...