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Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign

Wang, Yang and Apituley, A. and Bais, A. and Beirle, S. and Benavent, N. and Borovski, A. and Bruchkouski, I. and Chan, Ka Lok and Donner, S. and Drosoglou, T. and Finkenzeller, H. and Friedrich, M. M. and Frieß, U. and Garcia-Nieto, D. and Gómez-Martin, L. and Hendrick, F. and Hilboll, A. and Jin, J. and Johnston, P. and Koenig, T. K. and Kreher, K. and Kumar, V. and Kyuberis, A. and Lampel, J. and Liu, C. and Liu, H. and Ma, J. and Polyansky, O. L. and Postylyakov, O. and Querel, R. and Saiz-Lopez, A. and Schmitt, S. and Tian, X. and Tirpitz, J.-L. and Van Roozendael, M. and Volkamer, R. and Wang, Z. and Xie, P. and Xing, C. and Xu, J. and Yela, M. and Zhang, Chengxin and Wagner, T. (2020) Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign. Atmospheric Measurement Techniques (AMT), 13 (9), pp. 5087-5116. Copernicus Publications. doi: 10.5194/amt-13-5087-2020. ISSN 1867-1381.

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Official URL: https://amt.copernicus.org/articles/13/5087/2020/

Abstract

We present the inter-comparison of delta slant column densities (SCDs) and vertical profiles of nitrous acid (HONO) derived from measurements of different multi-axis differential optical absorption spectroscopy (MAX-DOAS) instruments and using different inversion algorithms during the Second Cabauw Inter-comparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) in September 2016 at Cabauw, the Netherlands (51.97∘ N, 4.93∘ E). The HONO vertical profiles, vertical column densities (VCDs), and near-surface volume mixing ratios are compared between different MAX-DOAS instruments and profile inversion algorithms for the first time. Systematic and random discrepancies of the HONO results are derived from the comparisons of all data sets against their median values. Systematic discrepancies of HONO delta SCDs are observed in the range of ±0.3×1015 molec. cm−2, which is half of the typical random discrepancy of 0.6×1015 molec. cm−2. For a typical high HONO delta SCD of 2×1015 molec. cm−2, the relative systematic and random discrepancies are about 15 % and 30 %, respectively. The inter-comparison of HONO profiles shows that both systematic and random discrepancies of HONO VCDs and near-surface volume mixing ratios (VMRs) are mostly in the range of ∼±0.5×1014 molec. cm−2 and ∼±0.1 ppb (typically ∼20 %). Further we find that the discrepancies of the retrieved HONO profiles are dominated by discrepancies of the HONO delta SCDs. The profile retrievals only contribute to the discrepancies of the HONO profiles by ∼5 %. However, some data sets with substantially larger discrepancies than the typical values indicate that inappropriate implementations of profile inversion algorithms and configurations of radiative transfer models in the profile retrievals can also be an important uncertainty source. In addition, estimations of measurement uncertainties of HONO dSCDs, which can significantly impact profile retrievals using the optimal estimation method, need to consider not only DOAS fit errors, but also atmospheric variability, especially for an instrument with a DOAS fit error lower than ∼3×1014 molec. cm−2. The MAX-DOAS results during the CINDI-2 campaign indicate that the peak HONO levels (e.g. near-surface VMRs of ∼0.4 ppb) often appeared in the early morning and below 0.2 km. The near-surface VMRs retrieved from the MAX-DOAS observations are compared with those measured using a co-located long-path DOAS instrument. The systematic differences are smaller than 0.15 and 0.07 ppb during early morning and around noon, respectively. Since true HONO values at high altitudes are not known in the absence of real measurements, in order to evaluate the abilities of profile inversion algorithms to respond to different HONO profile shapes, we performed sensitivity studies using synthetic HONO delta SCDs simulated by a radiative transfer model with assumed HONO profiles. The tests indicate that the profile inversion algorithms based on the optimal estimation method with proper configurations can reproduce the different HONO profile shapes well. Therefore we conclude that the features of HONO accumulated near the surface derived from MAX-DOAS measurements are expected to represent the ambient HONO profiles well.

Item URL in elib:https://elib.dlr.de/136524/
Document Type:Article
Title:Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wang, YangMax Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Apituley, A.Royal Netherlands Meteorological Institute (KNMI), De Bilt, the NetherlandsUNSPECIFIED
Bais, A.Laboratory of Atmospheric Physics, Aristotle University of Thessaloniki, Thessaloniki, GreeceUNSPECIFIED
Beirle, S.Max Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Benavent, N.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, SpainUNSPECIFIED
Borovski, A.A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, RussiaUNSPECIFIED
Bruchkouski, I.National Ozone Monitoring Research and Education Center BSU (NOMREC BSU), Belarusian State University, Minsk, BelarusUNSPECIFIED
Chan, Ka LokKa.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
Finkenzeller, H.Department of Chemistry, University of Colorado Boulder, Boulder, CO, USAUNSPECIFIED
Friedrich, M. M.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Frieß, U.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Garcia-Nieto, D.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, SpainUNSPECIFIED
Gómez-Martin, L.National Institute of Aerospatial Technology, Madrid, SpainUNSPECIFIED
Hendrick, F.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Hilboll, A.Institute of Environmental Physics, University of Bremen, Bremen, GermanyUNSPECIFIED
Jin, J.Meteorological Observation Center, China Meteorological Administration, Beijing, ChinaUNSPECIFIED
Johnston, P.National Institute of Water & Atmospheric Research (NIWA), Lauder, New ZealandUNSPECIFIED
Koenig, T. K.Department of Chemistry, University of Colorado Boulder, Boulder, CO, USAUNSPECIFIED
Kreher, K.BK Scientific, Mainz, GermanyUNSPECIFIED
Kumar, V.Max Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Kyuberis, A.Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, RussiaUNSPECIFIED
Lampel, J.Airyx GmbH, Justus-von-Liebig-Str. 14, 69214 Eppelheim, GermanyUNSPECIFIED
Liu, C.Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Liu, H.Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Ma, J.Chinese Academy of Meteorology Science, China Meteorological Administration, Beijing, ChinaUNSPECIFIED
Polyansky, O. L.Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, RussiaUNSPECIFIED
Postylyakov, O.A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, RussiaUNSPECIFIED
Querel, R.National Institute of Water & Atmospheric Research (NIWA), Lauder, New ZealandUNSPECIFIED
Saiz-Lopez, A.Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano (CSIC), Madrid, SpainUNSPECIFIED
Schmitt, S.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Tian, X.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Tirpitz, J.-L.Institute of Environmental Physics, University of Heidelberg, Heidelberg, GermanyUNSPECIFIED
Van Roozendael, M.Royal Belgian Institute for Space Aeronomy, Brussels, BelgiumUNSPECIFIED
Volkamer, R.Department of Chemistry, University of Colorado Boulder, Boulder, CO, USAUNSPECIFIED
Wang, Z.Zhuoru.Wang (at) dlr.deUNSPECIFIED
Xie, P.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Xing, C.School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Xu, J.Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, ChinaUNSPECIFIED
Yela, M.National Institute of Aerospatial Technology, Madrid, SpainUNSPECIFIED
Zhang, ChengxinSchool of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui, ChinaUNSPECIFIED
Wagner, T.Max Planck Institute for Chemistry, Mainz, GermanyUNSPECIFIED
Date:29 September 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-13-5087-2020
Page Range:pp. 5087-5116
Publisher:Copernicus Publications
ISSN:1867-1381
Status:Published
Keywords:MAX-DOAS, CINDI2, HONO
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):Vorhaben Spectroscopic Methods in Remote Sensing (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Chan, Ka Lok
Deposited On:12 Oct 2020 14:11
Last Modified:15 Jul 2021 16:26

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