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Title: Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA

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 October. Here, we report on the comparison of measurements collected by the two aircraft during these three flights.more » 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.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [1]; ORCiD logo [6]; ORCiD logo [6];  [7]; ORCiD logo [8]; ORCiD logo [9];  [1]; ORCiD logo [8]; ORCiD logo [1];  [1];  [10]; ORCiD logo [11]; ORCiD logo [10];  [6] more »;  [10]; ORCiD logo [12]; ORCiD logo [13];  [14];  [14];  [1];  [1]; ORCiD logo [15]; ORCiD logo [6]; ORCiD logo [12]; ORCiD logo [6];  [6]; ORCiD logo [10]; ORCiD logo [3];  [5] « less
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States); Washington Univ., St. Louis, MO (United States). Dept. of Energy, Environmental and Chemical Engineering, Aerosol and Air Quality Research Lab.
  3. Johannes Gutenberg Univ., Mainz (Germany)
  4. Johannes Gutenberg Univ., Mainz (Germany); Research Centre Jülich (Germany). Inst. for Energy and Climate Research
  5. Johannes Gutenberg Univ., Mainz (Germany); Max Planck Inst. for Chemistry, Mainz (Germany)
  6. Max Planck Inst. for Chemistry, Mainz (Germany)
  7. National Oceanic and Atmospheric Administration (NOAA), Boulder, CO (United States)
  8. Univ. of Leipzig (Germany)
  9. National Inst. for Space Research (INPE), São Paulo (Brazil)
  10. Deutsches Zentrum für Luft-und Raumfahrt (DLR), Oberpfaffenhofen (Germany)
  11. Univ. of Vienna (Austria)
  12. Univ. of Sao Paulo (Brazil)
  13. Max Planck Inst. for Chemistry, Mainz (Germany); Univ. of California, San Diego, CA (United States). Scripps Inst. of Oceanography
  14. Univ. of California, San Diego, CA (United States). Scripps Inst. of Oceanography
  15. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1599852
Report Number(s):
[PNNL-SA-151169]
[Journal ID: ISSN 1867-8548]
Grant/Contract Number:  
[AC05-76RL01830]
Resource Type:
Accepted Manuscript
Journal Name:
Atmospheric Measurement Techniques (Online)
Additional Journal Information:
[Journal Name: Atmospheric Measurement Techniques (Online); Journal Volume: 13; Journal Issue: 2]; Journal ID: ISSN 1867-8548
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Mei, Fan, Wang, Jian, Comstock, Jennifer M., Weigel, Ralf, Krämer, Martina, Mahnke, Christoph, Shilling, John E., Schneider, Johannes, Schulz, Christiane, Long, Charles N., Wendisch, Manfred, Machado, Luiz A. T., Schmid, Beat, Krisna, Trismono, Pekour, Mikhail, Hubbe, John, Giez, Andreas, Weinzierl, Bernadett, Zoeger, Martin, Pöhlker, Mira L., Schlager, Hans, Cecchini, Micael A., Andreae, Meinrat O., Martin, Scot T., de Sá, Suzane S., Fan, Jiwen, Tomlinson, Jason, Springston, Stephen, Pöschl, Ulrich, Artaxo, Paulo, Pöhlker, Christopher, Klimach, Thomas, Minikin, Andreas, Afchine, Armin, and Borrmann, Stephan. Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA. United States: N. p., 2020. Web. doi:10.5194/amt-13-661-2020.
Mei, Fan, Wang, Jian, Comstock, Jennifer M., Weigel, Ralf, Krämer, Martina, Mahnke, Christoph, Shilling, John E., Schneider, Johannes, Schulz, Christiane, Long, Charles N., Wendisch, Manfred, Machado, Luiz A. T., Schmid, Beat, Krisna, Trismono, Pekour, Mikhail, Hubbe, John, Giez, Andreas, Weinzierl, Bernadett, Zoeger, Martin, Pöhlker, Mira L., Schlager, Hans, Cecchini, Micael A., Andreae, Meinrat O., Martin, Scot T., de Sá, Suzane S., Fan, Jiwen, Tomlinson, Jason, Springston, Stephen, Pöschl, Ulrich, Artaxo, Paulo, Pöhlker, Christopher, Klimach, Thomas, Minikin, Andreas, Afchine, Armin, & Borrmann, Stephan. Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA. United States. doi:10.5194/amt-13-661-2020.
Mei, Fan, Wang, Jian, Comstock, Jennifer M., Weigel, Ralf, Krämer, Martina, Mahnke, Christoph, Shilling, John E., Schneider, Johannes, Schulz, Christiane, Long, Charles N., Wendisch, Manfred, Machado, Luiz A. T., Schmid, Beat, Krisna, Trismono, Pekour, Mikhail, Hubbe, John, Giez, Andreas, Weinzierl, Bernadett, Zoeger, Martin, Pöhlker, Mira L., Schlager, Hans, Cecchini, Micael A., Andreae, Meinrat O., Martin, Scot T., de Sá, Suzane S., Fan, Jiwen, Tomlinson, Jason, Springston, Stephen, Pöschl, Ulrich, Artaxo, Paulo, Pöhlker, Christopher, Klimach, Thomas, Minikin, Andreas, Afchine, Armin, and Borrmann, Stephan. Tue . "Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA". United States. doi:10.5194/amt-13-661-2020. https://www.osti.gov/servlets/purl/1599852.
@article{osti_1599852,
title = {Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA},
author = {Mei, Fan and Wang, Jian and Comstock, Jennifer M. and Weigel, Ralf and Krämer, Martina and Mahnke, Christoph and Shilling, John E. and Schneider, Johannes and Schulz, Christiane and Long, Charles N. and Wendisch, Manfred and Machado, Luiz A. T. and Schmid, Beat and Krisna, Trismono and Pekour, Mikhail and Hubbe, John and Giez, Andreas and Weinzierl, Bernadett and Zoeger, Martin and Pöhlker, Mira L. and Schlager, Hans and Cecchini, Micael A. and Andreae, Meinrat O. and Martin, Scot T. and de Sá, Suzane S. and Fan, Jiwen and Tomlinson, Jason and Springston, Stephen and Pöschl, Ulrich and Artaxo, Paulo and Pöhlker, Christopher and Klimach, Thomas and Minikin, Andreas and Afchine, Armin and Borrmann, Stephan},
abstractNote = {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 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},
journal = {Atmospheric Measurement Techniques (Online)},
number = [2],
volume = [13],
place = {United States},
year = {2020},
month = {2}
}

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