Amazon boundary layer aerosol concentration sustained by vertical transport during rainfall

Simple item page
dc.contributor.authorWang, Jian
dc.contributor.authorKrejci, Radovan
dc.contributor.authorGiangrande, Scott
dc.contributor.authorKuang, Chongai
dc.contributor.authorBarbosa, H. M. J.
dc.contributor.authorBrito, Joel
dc.contributor.authorCarbone, Samara
dc.contributor.authorChi, Xuguang
dc.contributor.authorComstock, Jennifer
dc.contributor.authorDitas, Florian
dc.contributor.authorLavric, Jost
dc.contributor.authorManninen, Hanna E.
dc.contributor.authorMei, Fan
dc.contributor.authorMoran-Zuloaga, Daniel
dc.contributor.authorPöhlker, Christopher
dc.contributor.authorPöhlker, Mira L.
dc.contributor.authorSaturno, Jorge
dc.contributor.authorSchmid, Beat
dc.contributor.authorSouza, Rodrigo A. F.
dc.contributor.authorSpringston, Stephen R.
dc.contributor.authorTomlinson, Jason M.
dc.contributor.authorToto, Tami
dc.contributor.authorWalter, David
dc.contributor.authorWimmer, Daniela
dc.contributor.authorSmith, James N.
dc.contributor.authorKulmala, Markku
dc.contributor.authorMachado, Luiz A. T.
dc.contributor.authorArtaxo, Paulo
dc.contributor.authorAndreae, Meinrat O.
dc.contributor.authorPetäjä, Tuukka
dc.contributor.authorMartin, Scot T.
dc.date.accessioned2024-06-28T18:10:11Z
dc.date.available2024-06-28T18:10:11Z
dc.date.issued2016-10-24
dc.description.abstractThe nucleation of atmospheric vapours is an important source of new aerosol particles that can subsequently grow to form cloud condensation nuclei in the atmosphere1. Most field studies of atmospheric aerosols over continents are influenced by atmospheric vapours of anthropogenic origin (for example, ref. 2) and, in consequence, aerosol processes in pristine, terrestrial environments remain poorly understood. The Amazon rainforest is one of the few continental regions where aerosol particles and their precursors can be studied under near-natural conditions3,4,5, but the origin of small aerosol particles that grow into cloud condensation nuclei in the Amazon boundary layer remains unclear6,7,8. Here we present aircraft- and ground-based measurements under clean conditions during the wet season in the central Amazon basin. We find that high concentrations of small aerosol particles (with diameters of less than 50 nanometres) in the lower free troposphere are transported from the free troposphere into the boundary layer during precipitation events by strong convective downdrafts and weaker downward motions in the trailing stratiform region. This rapid vertical transport can help to maintain the population of particles in the pristine Amazon boundary layer, and may therefore influence cloud properties and climate under natural conditions.
dc.description.sponsorshipInstitutional support was provided by the Central Office of the Brazilian Large Scale Biosphere Atmosphere Experiment in Amazonia (LBA), the Brazilian National Institute of Amazonian Research (INPA), the Brazilian National Institute for Space Research (INPE), Amazonas State University (UEA) and Amazonas State (SDS/CEUC/RDS-Uatumã). We acknowledge the Atmospheric Radiation Measurement (ARM) Climate Research Facility, a user facility of the United States Department of Energy (US DOE), Office of Science, sponsored by the Office of Biological and Environmental Research. Funding was obtained from the Atmospheric System Research (ASR) programme (Office of Biological and Environmental Research of US DOE, under contract DE-AC02-98CH10886), the Amazonas State Research Foundation (FAPEAM-GoAmazon), the São Paulo Research Foundation (FAPESP, project numbers 2013/50510-5, 2013/05014-0 and CHUVA 2009/15235-8), the Brazil Scientific Mobility Program (CsF/CAPES-CNPq), the Brazilian Ministry of Science, Technology, and Innovation (MCTI/FINEP contract 01.11.01248.00), the German Max Planck Society (MPG) and the German Federal Ministry of Education and Research (BMBF contract 01LB1001A). This work contains results of research conducted under the Technical/Scientific Cooperation Agreement between the National Institute for Amazonian Research, Amazonas State University, and the Max Planck Society. The work was conducted under scientific licenses 001030/2012-4, 001262/2012-2 and 00254/2013-9 of the Brazilian National Council for Scientific and Technological Development (CNPq). The opinions expressed herein are the entire responsibility of the authors and not of the participating institutions.
dc.description.urihttps://www.nature.com/articles/nature19819
dc.format.extent17 pages
dc.genre17
dc.identifierdoi:10.13016/m2ucdb-k39d
dc.identifier.citationWang, Jian, Radovan Krejci, Scott Giangrande, Chongai Kuang, Henrique M. J. Barbosa, Joel Brito, Samara Carbone, et al. “Amazon Boundary Layer Aerosol Concentration Sustained by Vertical Transport during Rainfall.” Nature 539, no. 7629 (October 24, 2016): 416–19. https://doi.org/10.1038/nature19819.
dc.identifier.urihttps://doi.org/10.1038/nature19819
dc.identifier.urihttp://hdl.handle.net/11603/34783
dc.language.isoen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.subjectBiogeochemistry
dc.subjectAtmospheric science
dc.subjectEnvironmental sciences
dc.titleAmazon boundary layer aerosol concentration sustained by vertical transport during rainfall
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-4027-1855

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
nature19819(1).pdf
Size:
2.82 MB
Format:
Adobe Portable Document Format
Download
No Thumbnail Available
Name:
Supplement2.zip
Size:
16.54 MB
Format:
Unknown data format
Download

Collections

UMBC Physics Department