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Intercomparison of NO₂, O₄, O₃ and HCHO slant column measurements by MAX-DOAS and zenith-sky UV--visible spectrometers during CINDI-2

Kreher, K. and Van Roozendael, M. and Hendrick, F. and Apituley, A. and Dimitropoulou, E. and Frieß, U. and Richter, A. and Wagner, T. and Lampel, J. and Abuhassan, N. and Ang, L. and Anguas, M. and Bais, A. and Benavent, N. and Bösch, T. and Bognar, K. and Borovski, A. and Bruchkouski, I. and Cede, A. and Chan, K. L. and Donner, S. and Drosoglou, T. and Fayt, C. and Finkenzeller, H. and Garcia-Nieto, D. and Gielen, C. and Gómez-Mart\'\in, L. and Hao, N. and Henzing, B. and Herman, J. R. and Hermans, C. and Hoque, S. and Irie, H. and Jin, J. and Johnston, P. and Khayyam Butt, J. and Khokhar, F. and Koenig, T. K. and Kuhn, J. and Kumar, V. and Liu, C. and Ma, J. and Merlaud, A. and Mishra, A. K. and Müller, M. and Navarro-Comas, M. and Ostendorf, M. and Pazmino, A. and Peters, E. and Pinardi, G. and Pinharanda, M. and Piters, A. and Platt, U. and Postylyakov, O. and Prados-Roman, C. and Puentedura, O. and Querel, R. and Saiz-Lopez, A. and Schönhardt, A. and Schreier, S. F. and Seyler, A. and Sinha, V. and Spinei, E. and Strong, K. and Tack, F. and Tian, X. and Tiefengraber, M. and Tirpitz, J.-L. and van Gent, J. and Volkamer, R. and Vrekoussis, M. and Wang, S. and Wang, Z. and Wenig, M. and Wittrock, F. and Xie, P. H. and Xu, J. and Yela, M. and Zhang, C. and Zhao, X. (2020) Intercomparison of NO₂, O₄, O₃ and HCHO slant column measurements by MAX-DOAS and zenith-sky UV--visible spectrometers during CINDI-2. Atmospheric Measurement Techniques (AMT), 13 (5), pp. 2169-2208. Copernicus Publications. DOI: 10.5194/amt-13-2169-2020 ISSN 1867-1381

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Official URL: https://www.atmos-meas-tech.net/13/2169/2020/

Abstract

In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for a period of 17 d during the Second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) that took place at Cabauw, the Netherlands (51.97∘ N, 4.93∘ E). We report on the outcome of the formal semi-blind intercomparison exercise, which was held under the umbrella of the Network for the Detection of Atmospheric Composition Change (NDACC) and the European Space Agency (ESA). The three major goals of CINDI-2 were (1) to characterise and better understand the differences between a large number of multi-axis differential optical absorption spectroscopy (MAX-DOAS) and zenith-sky DOAS instruments and analysis methods, (2) to define a robust methodology for performance assessment of all participating instruments, and (3) to contribute to a harmonisation of the measurement settings and retrieval methods. This, in turn, creates the capability to produce consistent high-quality ground-based data sets, which are an essential requirement to generate reliable long-term measurement time series suitable for trend analysis and satellite data validation. The data products investigated during the semi-blind intercomparison are slant columns of nitrogen dioxide (NO2), the oxygen collision complex (O4) and ozone (O3) measured in the UV and visible wavelength region, formaldehyde (HCHO) in the UV spectral region, and NO2 in an additional (smaller) wavelength range in the visible region. The campaign design and implementation processes are discussed in detail including the measurement protocol, calibration procedures and slant column retrieval settings. Strong emphasis was put on the careful alignment and synchronisation of the measurement systems, resulting in a unique set of measurements made under highly comparable air mass conditions. The CINDI-2 data sets were investigated using a regression analysis of the slant columns measured by each instrument and for each of the target data products. The slope and intercept of the regression analysis respectively quantify the mean systematic bias and offset of the individual data sets against the selected reference (which is obtained from the median of either all data sets or a subset), and the rms error provides an estimate of the measurement noise or dispersion. These three criteria are examined and for each of the parameters and each of the data products, performance thresholds are set and applied to all the measurements. The approach presented here has been developed based on heritage from previous intercomparison exercises. It introduces a quantitative assessment of the consistency between all the participating instruments for the MAX-DOAS and zenith-sky DOAS techniques.

Item URL in elib:https://elib.dlr.de/134889/
Document Type:Article
Title:Intercomparison of NO₂, O₄, O₃ and HCHO slant column measurements by MAX-DOAS and zenith-sky UV--visible spectrometers during CINDI-2
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kreher, K.BK Scientific, Mainz, GermanyUNSPECIFIED
Van Roozendael, M.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Hendrick, F.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Apituley, A.Royal Netherlands Meteorological Institute, De Bilt, the NetherlandsUNSPECIFIED
Dimitropoulou, E.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Frieß, U.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Richter, A.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Wagner, T.thomas.wagner (at) mpic.deUNSPECIFIED
Lampel, J.Airyx, Eppelheim, GermanyUNSPECIFIED
Abuhassan, N.NASA Goddard Space Flight Center, Greenbelt, Maryland, USAUNSPECIFIED
Ang, L.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Anguas, M.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Bais, A.Laboratory of Atmospheric Physics, Aristotle University of Thessaloniki, Thessaloniki, GreeceUNSPECIFIED
Benavent, N.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Bösch, T.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Bognar, K.Department of Physics, University of Toronto, Toronto, CanadaUNSPECIFIED
Borovski, A.3 A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, RussiaUNSPECIFIED
Bruchkouski, I.Belarusian State University, Minsk, BelarusUNSPECIFIED
Cede, A.LuftBlick Earth Observation Technologies, Mutters, AustriaUNSPECIFIED
Chan, K. L.ka.chan (at) dlr.deUNSPECIFIED
Donner, S.Max Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Drosoglou, T.Laboratory of Atmospheric Physics, Aristotle University of Thessaloniki, Thessaloniki, GreeceUNSPECIFIED
Fayt, C.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Finkenzeller, H.Department of Chemistry & Cooperative Institute for Research on Environmental Sciences (CIRES), University of Colorado, Boulder, USAUNSPECIFIED
Garcia-Nieto, D.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Gielen, C.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Gómez-Mart\'\in, L.National Institute for Aerospace Technology (INTA), Madrid, SpainUNSPECIFIED
Hao, N.European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), Darmstadt, GermanyUNSPECIFIED
Henzing, B.Netherlands Organisation for Applied Scientific Research (TNO), The Hague, the NetherlandsUNSPECIFIED
Herman, J. R.NASA Goddard Space Flight Center, Greenbelt, Maryland, USAUNSPECIFIED
Hermans, C.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Hoque, S.Center for Environmental Remote Sensing, Chiba University, Chiba, JapanUNSPECIFIED
Irie, H.Center for Environmental Remote Sensing, Chiba University, Chiba, JapanUNSPECIFIED
Jin, J.Meteorological Observation Center and Chinese Academy of Meteorological Science, China Meteorological Administration, Beijing, ChinaUNSPECIFIED
Johnston, P.National Institute of Water and Atmospheric Research, Lauder, New ZealandUNSPECIFIED
Khayyam Butt, J.National University of Sciences and Technology, Islamabad, PakistanUNSPECIFIED
Khokhar, F.National University of Sciences and Technology, Islamabad, PakistanUNSPECIFIED
Koenig, T. K.Department of Chemistry & Cooperative Institute for Research on Environmental Sciences (CIRES), University of Colorado, Boulder, USAUNSPECIFIED
Kuhn, J.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Kumar, V.Max Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Liu, C.School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Ma, J.Meteorological Observation Center and Chinese Academy of Meteorological Science, China Meteorological Administration, Beijing, ChinaUNSPECIFIED
Merlaud, A.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Mishra, A. K.Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research, Mohali, Punjab, IndiaUNSPECIFIED
Müller, M.LuftBlick Earth Observation Technologies, Mutters, AustriaUNSPECIFIED
Navarro-Comas, M.National Institute for Aerospace Technology (INTA), Madrid, SpainUNSPECIFIED
Ostendorf, M.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Pazmino, A.Laboratoire Atmosphères, Milieux, Observations Spatiales, Université de Versailles Saint-Quentin-en-Yvelines, Centre National de la Recherche Scientifique, Guyancourt, FranceUNSPECIFIED
Peters, E.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Pinardi, G.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Pinharanda, M.Laboratoire Atmosphères, Milieux, Observations Spatiales, Université de Versailles Saint-Quentin-en-Yvelines, Centre National de la Recherche Scientifique, Guyancourt, FranceUNSPECIFIED
Piters, A.Royal Netherlands Meteorological Institute, De Bilt, the NetherlandsUNSPECIFIED
Platt, U.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Postylyakov, O.A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, RussiaUNSPECIFIED
Prados-Roman, C.National Institute for Aerospace Technology (INTA), Madrid, SpainUNSPECIFIED
Puentedura, O.National Institute for Aerospace Technology (INTA), Madrid, SpainUNSPECIFIED
Querel, R.National Institute of Water and Atmospheric Research, Lauder, New ZealandUNSPECIFIED
Saiz-Lopez, A.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Schönhardt, A.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Schreier, S. F.Institute of Meteorology, University of Natural Resources and Life Sciences, Vienna, AustriaUNSPECIFIED
Seyler, A.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Sinha, V.Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research, Mohali, Punjab, IndiaUNSPECIFIED
Spinei, E.NASA Goddard Space Flight Center, Greenbelt, Maryland, USAUNSPECIFIED
Strong, K.Department of Physics, University of Toronto, Toronto, CanadaUNSPECIFIED
Tack, F.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Tian, X.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Tiefengraber, M.LuftBlick Earth Observation Technologies, Mutters, AustriaUNSPECIFIED
Tirpitz, J.-L.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
van Gent, J.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Volkamer, R.Department of Chemistry & Cooperative Institute for Research on Environmental Sciences (CIRES), University of Colorado, Boulder, USAUNSPECIFIED
Vrekoussis, M.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Wang, S.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Wang, Z.Zhuoru.wang (at) dlr.deUNSPECIFIED
Wenig, M.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, Madrid, SpainUNSPECIFIED
Wittrock, F.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Xie, P. H.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Xu, J.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Yela, M.National Institute for Aerospace Technology (INTA), Madrid, SpainUNSPECIFIED
Zhang, C.School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Zhao, X.Department of Physics, University of Toronto, Toronto, CanadaUNSPECIFIED
Date:6 May 2020
Journal or Publication Title:Atmospheric Measurement Techniques (AMT)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.5194/amt-13-2169-2020
Page Range:pp. 2169-2208
Publisher:Copernicus Publications
ISSN:1867-1381
Status:Published
Keywords:MAX-DOAS, inter-comparison, remote sensing, trace gas
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):Vorhaben Spectroscopic Methods in Remote Sensing
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Chan, Ka Lok
Deposited On:14 May 2020 11:41
Last Modified:14 May 2020 11:41

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