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@Article{MeiWCWKMSSSLWMSKPHGWZPSCAMSFTSPAPKMAB:2020:CoAiMe,
               author = "Mei, Fan and Wang, Jian and Comstock, Jennifer M. and Weigel, Ralf 
                         and Kr{\"a}mer, Martina and Mahnke, Christoph and Shilling, John 
                         E. and Schneider, Johannes and Schulz, Christiane and Long, 
                         Charles N. and Wendisch, Manfred and Machado, Luiz Augusto Toledo 
                         and Schmid, Beat and Krisna, Trismono and Pekour, Mikhail and 
                         Hubbe, John and Giez, Andreas and Weinzierl, Bernadett and Zoeger, 
                         Martin and P{\"o}hlker, Mira L. and Schlager, Hans and Cecchini, 
                         Micael A. and Andreae, Meinrat O. and Martin, Scot T. and S{\'a}, 
                         Suzane S. de and Fan, Jiwen and Tomlinson, Jason and Springston, 
                         Stephen and P{\"o}schl, Ulrich and Artaxo, Paulo and 
                         P{\"o}hlker, Christopher and Klimach, Thomas and Minikin, Andreas 
                         and Afchine, Armin and Borrmann, Stephan",
          affiliation = "{Pacific Northwest National Laboratory} and {Brookhaven National 
                         Laboratory} and {Pacific Northwest National Laboratory} and 
                         {Johannes Gutenberg University} and Research Centre J{\"u}lich, 
                         Institute for Energy and Climate Research 7: Stratosphere (IEK-7) 
                         and {Johannes Gutenberg University} and {Pacific Northwest 
                         National Laboratory} and {Max Planck Institute for Chemistry} and 
                         {Max Planck Institute for Chemistry} and {NOAA ESRL GMD/CIRES} and 
                         {University of Leipzig} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Pacific Northwest National Laboratory} and 
                         {University of Leipzig} and {Pacific Northwest National 
                         Laboratory} and {Pacific Northwest National Laboratory} and 
                         {Deutsches Zentrum f{\"u}r Luft- und Raumfahrt (DLR)} and 
                         {University of Vienna} and {Deutsches Zentrum f{\"u}r Luft- und 
                         Raumfahrt (DLR)} and {Max Planck Institute for Chemistry} and 
                         {Deutsches Zentrum f{\"u}r Luft- und Raumfahrt (DLR)} and 
                         {Universidade de S{\~a}o Paulo (USP)} and {Max Planck Institute 
                         for Chemistry} and {Harvard University} and {Harvard University} 
                         and {Pacific Northwest National Laboratory} and {Pacific Northwest 
                         National Laboratory} and {Brookhaven National Laboratory} and {Max 
                         Planck Institute for Chemistry} and {Universidade de S{\~a}o 
                         Paulo (USP)} and {Max Planck Institute for Chemistry} and {Max 
                         Planck Institute for Chemistry} and DLR Oberpfaffenhofen, Flight 
                         Experiments Facility and Research Centre J{\"u}lich, Institute 
                         for Energy and Climate Research 7: Stratosphere (IEK-7) and 
                         {Johannes Gutenberg University}",
                title = "Comparison of aircraft measurements during GoAmazon2014/5 and 
                         ACRIDICON-CHUVA",
              journal = "Atmospheric Measurement Techniques",
                 year = "2020",
               volume = "13",
               number = "2",
                pages = "661--684",
                month = "Feb.",
             abstract = "The indirect effect of atmospheric aerosol particles on the 
                         Earth's radiation balance remains one of the most uncertain 
                         components affecting climate change throughout the industrial 
                         period. The large uncertainty is partly due to the incomplete 
                         understanding of aerosol-cloud interactions. One objective of the 
                         GoAmazon2014/5 and the ACRIDICON (Aerosol, Cloud, Precipitation, 
                         and Radiation Interactions and Dynamics of Convective Cloud 
                         Systems)-CHUVA (Cloud Processes of the Main Precipitation Systems 
                         in Brazil) projects was to understand the influence of emissions 
                         from the tropical megacity of Manaus (Brazil) on the surrounding 
                         atmospheric environment of the rainforest and to investigate its 
                         role in the life cycle of convective clouds. During one of the 
                         intensive observation periods (IOPs) in the dry season from 1 
                         September to 10 October 2014, comprehensive measurements of trace 
                         gases and aerosol properties were carried out at several ground 
                         sites. In a coordinated way, the advanced suites of sophisticated 
                         in situ instruments were deployed aboard both the US Department of 
                         Energy Gulfstream-1 (G1) aircraft and the German High Altitude and 
                         Long-Range Research Aircraft (HALO) during three coordinated 
                         flights on 9 and 21 September and 1< page662 October. Here, we 
                         report on the comparison of measurements collected by the two 
                         aircraft during these three flights. Such comparisons are 
                         challenging but essential for assessing the data quality from the 
                         individual platforms and quantifying their uncertainty sources. 
                         Similar instruments mounted on the G1 and HALO collected vertical 
                         profile measurements of aerosol particle number concentrations and 
                         size distribution, cloud condensation nuclei concentrations, ozone 
                         and carbon monoxide mixing ratios, cloud droplet size 
                         distributions, and downward solar irradiance. We find that the 
                         above measurements from the two aircraft agreed within the 
                         measurement uncertainties. The relative fraction of the aerosol 
                         chemical composition measured by instruments on HALO agreed with 
                         the corresponding G1 data, although the total mass loadings only 
                         have a good agreement at high altitudes. Furthermore, possible 
                         causes of the discrepancies between measurements on the G1 and 
                         HALO are examined in this paper. Based on these results, criteria 
                         for meaningful aircraft measurement comparisons are discussed.",
                  doi = "10.5194/amt-13-661-2020",
                  url = "http://dx.doi.org/10.5194/amt-13-661-2020",
                 issn = "1867-1381",
             language = "en",
           targetfile = "Mei_comparison.pdf",
        urlaccessdate = "13 abr. 2021"
}


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