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          Institute: MPI für Chemie     Collection: Publikationen MPI für Chemie     Display Documents

ID: 18149.0, MPI für Chemie / Publikationen MPI für Chemie
Biogeochemical cycling of carbon, water, energy, trace gases, and aerosols in Amazonia: The LBA-EUSTACH experiments
Authors:Andreae, M. O.; Artaxo, P.; Brandao, C.; Carswell, F. E.; Ciccioli, P.; da Costa, A. L.; Culf, A. D.; Esteves, J. L.; Gash, J. H. C.; Grace, J.; Kabat, P.; Lelieveld, J.; Malhi, Y.; Manzi, A. O.; Meixner, F. X.; Nobre, A. D.; Nobre, C.; Ruivo, M. D. L. P.; Silva-Dias, M. A.; Stefani, P.; Valentini, R.; von Jouanne, J.; Waterloo, M. J.
Date of Publication (YYYY-MM-DD):2002-09
Title of Journal:Journal of Geophysical Research
Journal Abbrev.:J. Geophys. Res.
Issue / Number:D20
Sequence Number of Article:8066
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The biogeochemical cycling of carbon, water, energy, aerosols, and trace gases in the Amazon Basin was investigated in the project European Studies on Trace Gases and Atmospheric Chemistry as a Contribution to the Large-Scale Biosphere- Atmosphere Experiment in Amazonia (LBA-EUSTACH). We present an overview of the design of the project, the measurement sites and methods, and the meteorological conditions during the experiment. The main results from LBA-EUSTACH are: Eddy correlation studies in three regions of the Amazon Basin consistently show a large net carbon sink in the undisturbed rain forest. Nitrogen emitted by forest soils is subject to chemical cycling within the canopy space, which results in re- uptake of a large fraction of soil-derived NOx by the vegetation. The forest vegetation is both a sink and a source of volatile organic compounds, with net deposition being particularly important for partially oxidized organics. Concentrations of aerosol and cloud condensation nuclei (CCN) are highly seasonal, with a pronounced maximum in the dry (burning) season. High CCN concentrations from biomass burning have a pronounced impact on cloud microphysics, rainfall production mechanisms, and probably on large-scale climate dynamics.
Free Keywords:carbon cycles; aerosols; rainfall; nitrogen oxides; VOC; CCN
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Chemie/Biogeochemie
MPI für Chemie/Chemie der Atmosphäre
External Affiliations:Univ Sao Paulo, Inst Fis, BR-05508900 Sao Paulo, Brazil; IBAMA, BR-78960000 Jiparana, Rondonia, Brazil; Univ Edinburgh, Inst Ecol & Resource Management, Edinburgh EH9 3JU, Midlothian, Scotland; CNR, Inst Inquinamento Atmosfer, Area Ric Roma, I-00016 Monterotondo, Italy; Fed Univ Para, Dept Meteorol, BR-66059 Belem, Para, Brazil; Ctr Ecol & Hydrol, Wallingford OX10 8BB, Oxon, England; Inst Nacl Colonizacao & Reforma Agr, BR-78960000 Jiparana, Rondonia, Brazil; ALTERRA, Wageningen, Netherlands; INPE, Ctr Previsao Tempo & Estudos Climaticos, BR-12630000 Sao Paulo, Brazil; Inst Nacl de Pesquisas da Amazonia, Manaus, Amazonas, Brazil; Museu Paraense Emilio Goeldi, BR-66040170 Belem, Para, Brazil; Univ Sao Paulo, Dept Ciencias Atmosfer, Sao Paulo, Brazil; Univ Tuscia, Dept Forest Sci & Resources, I-01100 Viterbo, Italy
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