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Tirpitz, J.L. (author), Frieß, U. (author), Hendrick, F. (author), Alberti, C. (author), Allaart, M. (author), Apituley, A. (author), Bais, A. (author), Beirle, S. (author), Berkhout, S. (author), Bognar, K. (author), Bösch, T. (author), Bruchkouski, I. (author), Cede, A. (author), Chan, K.L. (author), den Hoed, M. (author), Donner, S. (author), Drosoglou, T. (author), Fayt, C. (author), Friedrich, M.M. (author), Frumau, A. (author), Gast, L. (author), Gielen, C. (author), Gomez-Martín, L. (author), Hao, N. (author), Hensen, A. (author), Henzing, B. (author), Hermans, C. (author), Jin, J. (author), Kreher, K. (author), Kuhn, J. (author), Lampel, J. (author), Li, A. (author), Liu, C. (author), Liu, H. (author), Ma, J. (author), Merlaud, A. (author), Peters, E. (author), Pinardi, G. (author), Piters, A. (author), Platt, U. (author), Puentedura, O. (author), Richter, A. (author), Schmitt, S. (author), Spinei, E. (author), stein Zweers, D. (author), Strong, K. (author), Swart, D. (author), Tack, F. (author), Tiefengraber, M. (author), van der Hoff, R. (author), van Roozendael, M. (author), Vlemmix, T. (author), Vonk, J. (author), Wagner, T. (author), Wang, Y. (author), Wang, Z. (author), Wenig, M. (author), Wiegner, M. (author), Wittrock, F. (author), Xie, P. (author), Xing, C. (author), Xu, J. (author), Yela, M. (author), Zhang, C. (author), Zhao, X. (author)The second Cabauw Intercomparison of Nitrogen Dioxide measuring Instruments (CINDI-2) took place in Cabauw (the Netherlands) in September 2016 with the aim of assessing the consistency of multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements of tropospheric species (NO2, HCHO, O3, HONO, CHOCHO and O4). This was achieved...article 2021
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Wagner, T. (author), Beirle, S. (author), Benavent, N. (author), Bösch, T. (author), lok Chan, K. (author), Donner, S. (author), Dörner, S. (author), Fayt, C. (author), Frieß, U. (author), García-Nieto, D. (author), Gielen, C. (author), González-Bartolome, D. (author), Gomez, L. (author), Hendrick, F. (author), Henzing, B. (author), li Jin, J. (author), Lampel, J. (author), Ma, J. (author), Mies, K. (author), Navarro, M. (author), Peters, E. (author), Pinardi, G. (author), Puentedura, O. (author), Pukite, J. (author), Remmers, J. (author), Richter, A. (author), Saiz-Lopez, A. (author), Shaiganfar, R. (author), Sihler, H. (author), van Roozendael, M. (author), Wang, Y. (author), Yela, M. (author)In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O 4 absorption is investigated on 2 mainly cloud-free days during the MAD-CAT campaign in Mainz, Germany, in summer 2013. In recent years several studies indicated that measurements and radiative transfer simulations of the...article 2019
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Shaiganfar, R. (author), Beirle, S. (author), Denier van der Gon, H. (author), Jonkers, S. (author), Kuenen, J. (author), Petetin, H. (author), Zhang, Q. (author), Beekmann, M. (author), Wagner, T. (author)We determined NOx emissions from Paris in summer 2009 and winter 2009/2010 by applying the closed integral method (CIM) to a large set of car multi-axis differential optical absorption spectroscopy (MAX-DOAS) measurements performed within the framework of the MEGAPOLI project (http://megapoli.dmi.dk/). MAX-DOAS measurements of the tropospheric...article 2017
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Friess, U. (author), Klein Baltink, H. (author), Beirle, S. (author), Clémer, K. (author), Hendrick, F. (author), Henzing, B. (author), Irie, H. (author), de Leeuw, G. (author), Li, A. (author), Moerman, M.M. (author), Van Roozendael, M. (author), Shaiganfar, R. (author), Wagner, T. (author), Wang, Y. (author), Xie, P. (author), Yilmaz, S. (author), Zieger, P. (author)A first direct intercomparison of aerosol vertical profiles from Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations, performed during the Cabauw Intercomparison Campaign of Nitrogen Dioxide measuring Instruments (CINDI) in summer 2009, is presented. Five out of 14 participants of the CINDI campaign reported aerosol...article 2016
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Beekmann, M. (author), Prévôt, A.S.H. (author), Drewnick, F. (author), Sciare, J. (author), Pandis, S.N. (author), Denier van der Gon, H.A.C. (author), Crippa, M. (author), Freutel, F. (author), Poulain, L. (author), Ghersi, V. (author), Rodriguez, E. (author), Beirle, S. (author), Zotter, P. (author), von der Weiden-Reinmüller, S.L. (author), Bressi, M. (author), Fountoukis, C. (author), Petetin, H. (author), Szidat, S. (author), Schneider, J. (author), Rosso, A. (author), El Haddad, I. (author), Megaritis, A. (author), Zhang, Q.J. (author), Michoud, V. (author), Slowik, J.G. (author), Moukhtar, S. (author), Kolmonen, P. (author), Stohl, A. (author), Eckhardt, S. (author), Borbon, A. (author), Gros, V. (author), Marchand, N. (author), Jaffrezo, J.L. (author), Schwarzenboeck, A. (author), Colomb, A. (author), Wiedensohler, A. (author), Borrmann, S. (author), Lawrence, M. (author), Baklanov, A. (author), Baltensperger, U. (author)A detailed characterization of air quality in the megacity of Paris (France) during two 1-month intensive campaigns and from additional 1-year observations revealed that about 70 % of the urban background fine particulate matter (PM) is transported on average into the megacity from upwind regions. This dominant influence of regional sources was...article 2015
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Piters, A.J.M. (author), Boersma, K.F. (author), Kroon, M. (author), Hains, J.C. (author), van Roozendael, M. (author), Wittrock, F. (author), Abuhassan, N. (author), Adams, C. (author), Akrami, M. (author), Allaart, M.A.F. (author), Apituley, A. (author), Beirle, S. (author), Bergwerff, J.B. (author), Berkhout, A.J.C. (author), Brunner, D. (author), Cede, A. (author), Chong, J. (author), Clémer, K. (author), Fayt, C. (author), Frieß, U. (author), Gast, L.F.L. (author), Gil-Ojeda, M. (author), Goutail, F. (author), Graves, R. (author), Griesfeller, A. (author), Großmann, K. (author), Hemerijckx, G. (author), Hendrick, F. (author), Henzing, B. (author), Herman, J. (author), Hermans, C. (author), Hoexum, M. (author), van der Hoff, G.R. (author), Irie, H. (author), Johnston, P.V. (author), Kanaya, Y. (author), Kim, Y.J. (author), Klein Baltink, H. (author), Kreher, K. (author), de Leeuw, G. (author), Leigh, R. (author), Merlaud, A. (author), Moerman, M.M. (author), Monks, P.S. (author), Mount, G.H. (author), Navarro-Comas, M. (author), Oetjen, H. (author), Pazmino, A. (author), Perez-Camacho, M. (author), Peters, E. (author), Du Piesanie, A. (author), Pinardi, G. (author), Puentedura, O. (author), Richter, A. (author), Roscoe, H.K. (author), Schönhardt, A. (author), Schwarzenbach, B. (author), Shaiganfar, R. (author), Sluis, W. (author), Spinei, E. (author), Stolk, A.P. (author), Strong, K. (author), Swart, D.P.J. (author), Takashima, H. (author), Vlemmix, T. (author), Vrekoussis, M. (author), Wagner, T. (author), Whyte, C. (author), Wilson, K.M. (author), Yela, M. (author), Yilmaz, S. (author), Zieger, P. (author), Zhou, Y. (author)From June to July 2009 more than thirty different in-situ and remote sensing instruments from all over the world participated in the Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI). The campaign took place at KNMI's Cabauw Experimental Site for Atmospheric Research (CESAR) in the Netherlands. Its main...article 2012
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Zieger, P. (author), Weingartner, E. (author), Henzing, J. (author), Moerman, M. (author), de Leeuw, G. (author), Mikkilä, J. (author), Ehn, M. (author), Petäjä, T. (author), Clémer, K. (author), van Roozendael, M. (author), Yilmaz, S. (author), Frieß, U. (author), Irie, H. (author), Wagner, T. (author), Shaiganfar, R. (author), Beirle, S. (author), Apituley, A. (author), Wilson, K. (author), Baltensperger, U. (author)In the field, aerosol in-situ measurements are often performed under dry conditions (relative humidity RH<30-40%). Since ambient aerosol particles experience hygroscopic growth at enhanced RH, their microphysical and optical properties especially the aerosol light scattering are also strongly dependent on RH. The knowledge of this RH effect is...article 2011