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  • Bianchi, F. (author)

The SALTENA Experiment : Comprehensive Observations of Aerosol Sources, Formation, and Processes in the South American Andes

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-206287
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-206287URI
  • https://doi.org/10.1175/BAMS-D-20-0187.1DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • This paper presents an introduction to the Southern Hemisphere High Altitude Experiment on Particle Nucleation and Growth (SALTENA). This field campaign took place between December 2017 and June 2018 (wet to dry season) at Chacaltaya (CHC), a GAW (Global Atmosphere Watch) station located at 5,240 m MSL in the Bolivian Andes. Concurrent measurements were conducted at two additional sites in El Alto (4,000 m MSL) and La Paz (3,600 m MSL). The overall goal of the campaign was to identify the sources, understand the formation mechanisms and transport, and characterize the properties of aerosol at these stations. State-of-the-art instruments were brought to the station complementing the ongoing permanent GAW measurements, to allow a comprehensive description of the chemical species of anthropogenic and biogenic origin impacting the station and contributing to new particle formation. In this overview we first provide an assessment of the complex meteorology, airmass origin, and boundary layer-free troposphere interactions during the campaign using a 6-month high-resolution Weather Research and Forecasting (WRF) simulation coupled with Flexible Particle dispersion model (FLEXPART). We then show some of the research highlights from the campaign, including (i) chemical transformation processes of anthropogenic pollution while the air masses are transported to the CHC station from the metropolitan area of La Paz-El Alto, (ii) volcanic emissions as an important source of atmospheric sulfur compounds in the region, (iii) the characterization of the compounds involved in new particle formation, and (iv) the identification of long-range-transported compounds from the Pacific or the Amazon basin. We conclude the article with a presentation of future research foci. The SALTENA dataset highlights the importance of comprehensive observations in strategic high-altitude locations, especially the undersampled Southern Hemisphere.

Subject headings and genre

  • NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
  • NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
  • Aerosol nucleation
  • Aerosols/particulates
  • Atmospheric composition
  • Biosphere/atmosphere interactions
  • Gas-to-particle conversion
  • Measurements
  • Atmospheric aerosols
  • Atmospheric movements
  • Atmospheric thermodynamics
  • Boundary layers
  • Nucleation
  • Sulfur compounds
  • Weather forecasting
  • Aerosol particulates
  • Aerosol source
  • Air mass
  • Biosphere-atmosphere interactions
  • Global atmosphere watches
  • New particle formation
  • Particle nucleation
  • Southern Hemisphere
  • Atmospheric chemistry

Added entries (persons, corporate bodies, meetings, titles ...)

  • Sinclair, V. A. (author)
  • Aliaga, D. (author)
  • Zha, Q. (author)
  • Scholz, W. (author)
  • Wu, ChengStockholms universitet,Institutionen för miljövetenskap(Swepub:su)chwu3498 (author)
  • Heikkinen, L. (author)
  • Modini, R. (author)
  • Partoll, E. (author)
  • Velarde, F. (author)
  • Moreno, I. (author)
  • Gramlich, YvetteStockholms universitet,Institutionen för miljövetenskap(Swepub:su)yvgr0791 (author)
  • Huang, W. (author)
  • Koenig, A. M. (author)
  • Leiminger, M. (author)
  • Enroth, J. (author)
  • Peräkylä, O. (author)
  • Marinoni, A. (author)
  • Xuemeng, C. (author)
  • Blacutt, L. (author)
  • Forno, R. (author)
  • Gutierrez, R. (author)
  • Ginot, P. (author)
  • Uzu, G. (author)
  • Facchini, M. C. (author)
  • Gilardoni, S. (author)
  • Gysel-Beer, M. (author)
  • Cai, R. (author)
  • Petäjä, T. (author)
  • Rinaldi, M. (author)
  • Saathoff, H. (author)
  • Sellegri, K. (author)
  • Worsnop, D. (author)
  • Artaxo, P. (author)
  • Hansel, A. (author)
  • Kulmala, M. (author)
  • Wiedensohler, A. (author)
  • Laj, P. (author)
  • Krejci, RadovanStockholms universitet,Institutionen för miljövetenskap(Swepub:su)krejc (author)
  • Carbone, S. (author)
  • Andrade, M. (author)
  • Mohr, ClaudiaStockholms universitet,Institutionen för miljövetenskap(Swepub:su)cmohr (author)
  • Stockholms universitetInstitutionen för miljövetenskap (creator_code:org_t)

Related titles

  • In:Bulletin of The American Meteorological Society - (BAMS)103:2, s. E212-E2290003-00071520-0477

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