Articles | Volume 21, issue 21
https://doi.org/10.5194/acp-21-16453-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-16453-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Nov 2021
Research article |
| 10 Nov 2021
| 10 Nov 2021
Identifying source regions of air masses sampled at the tropical high-altitude site of Chacaltaya using WRF-FLEXPART and cluster analysis
Diego Aliaga
Institute for Atmospheric and Earth System Research/Physics,
Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
Victoria A. Sinclair
CORRESPONDING AUTHOR
Institute for Atmospheric and Earth System Research/Physics,
Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
Marcos Andrade
Laboratory for Atmospheric Physics, Institute for Physics
Research,
Universidad Mayor de San Andrés, La Paz, Bolivia
Department of Atmospheric and Oceanic Sciences, University of
Maryland, College Park, MD, USA
Paulo Artaxo
Institute of Physics, University of Sao Paulo, São Paulo, Brazil
Samara Carbone
Agrarian Sciences Institute, Federal University of Uberlândia,
Uberlândia, MG, Brazil
Evgeny Kadantsev
Institute for Atmospheric and Earth System Research/Physics,
Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
Finnish Meteorological Institute, Helsinki, 00101, Finland
Paolo Laj
Institute for Atmospheric and Earth System Research/Physics,
Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
Université Grenoble Alpes, CNRS, IRD, Grenoble INP, Institut des
Géosciences de l'Environnement, Grenoble, France
Alfred Wiedensohler
Leibniz Institute for Tropospheric Research, Permoserstr. 15,
04318 Leipzig, Germany
Radovan Krejci
Department of Environmental Science, Bolin Centre of Climate
Research, Stockholm University, Stockholm 10691, Sweden
Federico Bianchi
Institute for Atmospheric and Earth System Research/Physics,
Faculty of Science, University of Helsinki, Helsinki, 00014, Finland
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21 citations as recorded by crossref.
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- New particle formation dynamics in the central Andes: contrasting urban and mountaintop environments D. Aliaga et al. 10.5194/ar-3-15-2025
- Variation in chemical composition and volatility of oxygenated organic aerosol in different rural, urban, and mountain environments W. Huang et al. 10.5194/acp-24-2607-2024
- Direct high-altitude observations of 2-methyltetrols in the gas- and particle phase in air masses from Amazonia C. Mohr et al. 10.1039/D4FD00179F
21 citations as recorded by crossref.
- Evidence for Interhemispheric Mercury Exchange in the Pacific Ocean Upper Troposphere A. Koenig et al. 10.1029/2021JD036283
- Mercury in the free troposphere and bidirectional atmosphere–vegetation exchanges – insights from Maïdo mountain observatory in the Southern Hemisphere tropics A. Koenig et al. 10.5194/acp-23-1309-2023
- Measurement report: Long-range transport and the fate of dimethyl sulfide oxidation products in the free troposphere derived from observations at the high-altitude research station Chacaltaya (5240 m a.s.l.) in the Bolivian Andes W. Scholz et al. 10.5194/acp-23-895-2023
- Source apportionment study on particulate air pollution in two high-altitude Bolivian cities: La Paz and El Alto V. Mardoñez et al. 10.5194/acp-23-10325-2023
- Impacts of synoptic weather patterns on Hefei's ozone in warm season and analysis of transport pathways during extreme pollution events F. Hu et al. 10.1016/j.jes.2024.06.032
- Atmospheric black carbon in the metropolitan area of La Paz and El Alto, Bolivia: concentration levels and emission sources V. Mardoñez-Balderrama et al. 10.5194/acp-24-12055-2024
- The annual cycle and sources of relevant aerosol precursor vapors in the central Arctic during the MOSAiC expedition M. Boyer et al. 10.5194/acp-24-12595-2024
- Estimation of seasonal methane fluxes over a Mediterranean rice paddy area using the Radon Tracer Method (RTM) R. Curcoll et al. 10.5194/acp-25-6299-2025
- Evidence of a dual African and Australian biomass burning influence on the vertical distribution of aerosol and carbon monoxide over the southwest Indian Ocean basin in early 2020 N. Bègue et al. 10.5194/acp-24-8031-2024
- Moisture sources for the genesis of tropical cyclones over the Bay of Bengal using the lagrangian FLEXPART model M. Gorja et al. 10.1007/s00382-024-07269-0
- Recent progress in atmospheric modeling over the Andes – part I: review of atmospheric processes J. Martinez et al. 10.3389/feart.2024.1427783
- A full year of aerosol size distribution data from the central Arctic under an extreme positive Arctic Oscillation: insights from the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition M. Boyer et al. 10.5194/acp-23-389-2023
- Analysis of atmospheric particle growth based on vapor concentrations measured at the high-altitude GAW station Chacaltaya in the Bolivian Andes A. Heitto et al. 10.5194/acp-24-1315-2024
- Representing chemical history in ozone time-series predictions – a model experiment study building on the MLAir (v1.5) deep learning framework F. Kleinert et al. 10.5194/gmd-15-8913-2022
- Transport of substantial stratospheric ozone to the surface by a dying typhoon and shallow convection Z. Chen et al. 10.5194/acp-22-8221-2022
- Oxidized organic molecules in the tropical free troposphere over Amazonia Q. Zha et al. 10.1093/nsr/nwad138
- Measurement report: Molecular-level investigation of atmospheric cluster ions at the tropical high-altitude research station Chacaltaya (5240 m a.s.l.) in the Bolivian Andes Q. Zha et al. 10.5194/acp-23-4559-2023
- Tropical tropospheric aerosol sources and chemical composition observed at high altitude in the Bolivian Andes C. Moreno et al. 10.5194/acp-24-2837-2024
- New particle formation dynamics in the central Andes: contrasting urban and mountaintop environments D. Aliaga et al. 10.5194/ar-3-15-2025
- Variation in chemical composition and volatility of oxygenated organic aerosol in different rural, urban, and mountain environments W. Huang et al. 10.5194/acp-24-2607-2024
- Direct high-altitude observations of 2-methyltetrols in the gas- and particle phase in air masses from Amazonia C. Mohr et al. 10.1039/D4FD00179F
Latest update: 13 Jul 2025
Short summary
We investigate the origin of air masses sampled at Mount Chacaltaya, Bolivia. Three-quarters of the measured air has not been influenced by the surface in the previous 4 d. However, it is rare that, at any given time, the sampled air has not been influenced at all by the surface, and often the sampled air has multiple origins. The influence of the surface is more prevalent during day than night. Furthermore, during the 6-month study, one-third of the air masses originated from Amazonia.
We investigate the origin of air masses sampled at Mount Chacaltaya, Bolivia. Three-quarters of...
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