Relationship between land use and spatial variability of atmospheric brown carbon and black carbon aerosols in Amazonia

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dc.contributor.authorMORAIS, FERNANDO G.pt_BR
dc.contributor.authorFRANCO, MARCO A.pt_BR
dc.contributor.authorPALACIOS, RAFAELpt_BR
dc.contributor.authorMACHADO, LUIZ A.T.pt_BR
dc.contributor.authorRIZZO, LUCIANA V.pt_BR
dc.contributor.authorBARBOSA, HENRIQUE M.J.pt_BR
dc.contributor.authorJORGE, FABIOpt_BR
dc.contributor.authorSCHAFER, JOEL S.pt_BR
dc.contributor.authorHOLBEN, BRENT N.pt_BR
dc.contributor.authorLANDULFO, EDUARDOpt_BR
dc.contributor.authorARTAXO, PAULOpt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2022-11-30T18:23:32Z
dc.date.available2022-11-30T18:23:32Z
dc.date.issued2022pt_BR
dc.description.abstractThe aerosol radiative effect is an important source of uncertainty in estimating the anthropogenic impact of global climate change. One of the main open questions is the role of radiation absorption by aerosols and its relation to land use worldwide, particularly in the Amazon Rainforest. Using AERONET (Aerosol Robotic Network) long-term measurements of aerosol optical depth (AOD) at a wavelength of 500 nm and absorption AOD (AAOD) at wavelengths of 440, 675, and 870 nm, we estimated the fraction and seasonality of the black carbon (BC) and brown carbon (BrC) contributions to absorption at 440 nm. This was conducted at six Amazonian sites, from central Amazon (Manaus and the Amazon Tall Tower Observatory—ATTO) to the deforestation arc (Rio Branco, Cuiabá, Ji-Paraná, and Alta Floresta). In addition, land use and cover data from the MapBiomas collection 6.0 was used to access the land transformation from forest to agricultural areas on each site. The results showed, for the first time, important geographical and seasonal variability in the aerosol optical properties, particularly the BC and BrC contributions. We observed a clear separation between dry and wet seasons, with BrC consistently accounting for an average of approximately 12% of the aerosol AAOD at 440 nm in the deforestation arc. In central Amazon, the contribution of BrC was approximately 25%. A direct relationship between the reduction in forests and the increase in the area dedicated to agriculture was detected. Moreover, places with lower fractions of forest had a smaller fraction of BrC, and regions with higher fractions of agricultural areas presented higher fractions of BC. Therefore, significant changes in AOD and AAOD are likely related to land-use transformations and biomass burning emissions, mainly during the dry season. The effects of land use change could introduce differences in the radiative balance in the different Amazonian regions. The analyses presented in this study allow a better understanding of the role of aerosol emissions from the Amazon Rainforest that could have global impacts.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipIDFAPESP: 17/17047-0; 21/13610-8pt_BR
dc.format.extent1-17pt_BR
dc.identifier.citationMORAIS, FERNANDO G.; FRANCO, MARCO A.; PALACIOS, RAFAEL; MACHADO, LUIZ A.T.; RIZZO, LUCIANA V.; BARBOSA, HENRIQUE M.J.; JORGE, FABIO; SCHAFER, JOEL S.; HOLBEN, BRENT N.; LANDULFO, EDUARDO; ARTAXO, PAULO. Relationship between land use and spatial variability of atmospheric brown carbon and black carbon aerosols in Amazonia. <b>Atmosphere</b>, v. 13, n. 8, p. 1-17, 2022. DOI: <a href="https://dx.doi.org/10.3390/atmos13081328">10.3390/atmos13081328</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33368.
dc.identifier.doi10.3390/atmos13081328pt_BR
dc.identifier.fasciculo8pt_BR
dc.identifier.issn2073-4433pt_BR
dc.identifier.orcid0000-0002-9691-5306pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9691-5306
dc.identifier.percentilfi41.1pt_BR
dc.identifier.percentilfiCiteScore69pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33368
dc.identifier.vol13pt_BR
dc.relation.ispartofAtmospherept_BR
dc.rightsopenAccesspt_BR
dc.subjectaerosol monitoring
dc.subjectremote sensing
dc.subjectcarbon
dc.subjectland use
dc.subjectamazon river
dc.titleRelationship between land use and spatial variability of atmospheric brown carbon and black carbon aerosols in Amazoniapt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorEDUARDO LANDULFO
ipen.autorFERNANDO GONCALVES MORAIS
ipen.codigoautor503
ipen.codigoautor14596
ipen.contributor.ipenauthorEDUARDO LANDULFO
ipen.contributor.ipenauthorFERNANDO GONCALVES MORAIS
ipen.date.recebimento22-11
ipen.identifier.fi2.9pt_BR
ipen.identifier.fiCiteScore4.1pt_BR
ipen.identifier.ipendoc29002pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.identifier.ods2
ipen.identifier.ods13
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi25.00 - 49.99
ipen.type.genreArtigo
relation.isAuthorOfPublicatione4dff370-e8c1-4437-846a-ef18a3ad606b
relation.isAuthorOfPublicatione32986ad-a550-4eaa-bcc7-be378dc5dcc3
relation.isAuthorOfPublication.latestForDiscoverye32986ad-a550-4eaa-bcc7-be378dc5dcc3
sigepi.autor.atividadeLANDULFO, EDUARDO:503:920:Npt_BR
sigepi.autor.atividadeMORAIS, FERNANDO G.:14596:920:Spt_BR
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