@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 = "27 abr. 2024"
}