Invited Keynote: Inter-annual variation of Amazon greenhouse balances 2010- 2014

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dc.contributor.authorGATTI, LUCIANA V.
dc.contributor.authorGLOOR, MANUEL
dc.contributor.authorMILLER, JOHN B.
dc.contributor.authorDOMINGUES, LUCAS G.
dc.contributor.authorSILVA, MARCELO G.
dc.contributor.authorARAGAO, LUIZ E.O.C.
dc.contributor.authorMARANI, LUCIANO
dc.contributor.authorCORREIA, CAIO C.S.
dc.contributor.authorPETERS, WOUTER
dc.contributor.authorBORGES, VIVIANE F.
dc.contributor.authorIPIA, ALBER H.S.
dc.contributor.authorBASSO, LUANA S.
dc.contributor.authorANDERSON, LIANA O.
dc.contributor.authorALDEN, CAROLINE B.
dc.contributor.authorVAN DER LAAN-LUIJKX, INGRID
dc.contributor.authorBARICHIVICH, JONATHAN
dc.contributor.authorSANTOS, RICARDO S.
dc.contributor.authorCRISPIM, STEPHANE P.
dc.contributor.authorCOSTA, WELLISSON R.
dc.contributor.authorROSAN, THAIS M.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL CARBON DIOXIDE CONFERENCE, 10thpt_BR
dc.date.accessioned2018-09-17T13:46:45Z
dc.date.available2018-09-17T13:46:45Z
dc.date.eventoAugust 21-25, 2017pt_BR
dc.description.abstractNet carbon exchange between tropical land and the atmosphere is potentially important because the vast amounts of carbon in forests and soils can be released on short time-scales e.g. via deforestation or changes in temperature and moisture. Such changes may thus cause feedbacks on global climate, as have been predicted in earth system models. In the tropics, the Amazon is most significant in the global carbon cycle, hosting by far the largest carbon vegetation and soil carbon pools (~200 PgC). Because of the very large precipitation amounts, approximately 20-25% of its area is seasonally flooded and thus it is also an important region for methane emissions. From 2010 onwards we have extended an earlier greenhouse gas measurement program to include regular vertical profiles of CO2, CH4, N2O, CO, SF6, from the ground up to 4.5 km height at four sites along the main air-stream over the Amazon Basin. Our measurements demonstrate that surface flux signals are primarily concentrated to the lower 2 km and thus vertical profile measurements are ideally suited to estimate greenhouse gas balances. Clearly a higher measurement density is desirable. We are in the process of expanding the number of surface and airborne sampling sites as well as the number of trace gases measured. Nonetheless, because of the homogeneity of the vegetation (forests) and the coherent east to west trade-winds over the Basin, these data already permit a range of insights about the magnitude, seasonality, inter-annual variation of carbon fluxes and their controls. Most recent years have been anomalously hot with the southern part of the Basin having warmed the most. Precipitation regimes also seem to have shifted with an increase in extreme floods. Approximately 20 percent of Amazon forests have been deforested by now and development pressure on forests continues. For the specific period we will discuss the year 2010 was anomalously dry, followed by 4 years wet (2011, 2012, 2013 and 2014) and another dry year (2015/16 -El Nino year). This period provides an interesting contrast of climatic conditions in a warming world with increasing human pressures. We will analyze the effect of this climate variability on annual and seasonal carbon balances for these five years using our atmospheric data. We will estimate fluxes using a simple, but powerful back-trajectory based atmospheric mass balance approach. Our data permit us not only to estimate net CO2 and CH4 fluxes, but using carbon monoxide we estimate carbon release via fires and thus the net carbon balance of the unburned land vegetation. We will relate fire emissions to controls of land vegetation functioning and independent diagnostics like fire counts. We will also discuss what our results suggest for the role of the tropics of the global carbon balance.pt_BR
dc.event.siglaICDCpt_BR
dc.format.extent303-303pt_BR
dc.identifier.citationGATTI, LUCIANA V.; GLOOR, MANUEL; MILLER, JOHN B.; DOMINGUES, LUCAS G.; SILVA, MARCELO G.; ARAGAO, LUIZ E.O.C.; MARANI, LUCIANO; CORREIA, CAIO C.S.; PETERS, WOUTER; BORGES, VIVIANE F.; IPIA, ALBER H.S.; BASSO, LUANA S.; ANDERSON, LIANA O.; ALDEN, CAROLINE B.; VAN DER LAAN-LUIJKX, INGRID; BARICHIVICH, JONATHAN; SANTOS, RICARDO S.; CRISPIM, STEPHANE P.; COSTA, WELLISSON R.; ROSAN, THAIS M. Invited Keynote: Inter-annual variation of Amazon greenhouse balances 2010- 2014: nature and causes. In: INTERNATIONAL CARBON DIOXIDE CONFERENCE, 10th, August 21-25, 2017, Interlaken, Switzerland. <b>Abstract...</b> Bern, Switzerland: Swiss Academy of Sciences (SCNAT), 2017. p. 303-303. Disponível em: http://repositorio.ipen.br/handle/123456789/29151.
dc.identifier.orcidhttps://orcid.org/0000-0003-4908-8974
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29151
dc.localBern, Switzerlandpt_BR
dc.local.eventoInterlaken, Switzerlandpt_BR
dc.publisherSwiss Academy of Sciences (SCNAT)pt_BR
dc.rightsopenAccesspt_BR
dc.titleInvited Keynote: Inter-annual variation of Amazon greenhouse balances 2010- 2014pt_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorVIVIANE FRANCISCA BORGES
ipen.autorLUANA SANTAMARIA BASSO
ipen.autorRICARDO SANTANA DOS SANTOS
ipen.autorSTEPHANE PALMA CRISPIM
ipen.autorCAIO SILVESTRE DE CARVALHO CORREIA
ipen.autorLUCAS GATTI DOMINGUES
ipen.autorLUCIANA VANNI GATTI
ipen.codigoautor9386
ipen.codigoautor8668
ipen.codigoautor14384
ipen.codigoautor14427
ipen.codigoautor9389
ipen.codigoautor6548
ipen.codigoautor670
ipen.contributor.ipenauthorVIVIANE FRANCISCA BORGES
ipen.contributor.ipenauthorLUANA SANTAMARIA BASSO
ipen.contributor.ipenauthorRICARDO SANTANA DOS SANTOS
ipen.contributor.ipenauthorSTEPHANE PALMA CRISPIM
ipen.contributor.ipenauthorCAIO SILVESTRE DE CARVALHO CORREIA
ipen.contributor.ipenauthorLUCAS GATTI DOMINGUES
ipen.contributor.ipenauthorLUCIANA VANNI GATTI
ipen.date.recebimento18-09pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24963pt_BR
ipen.notas.internasAbstractpt_BR
ipen.subtitulonature and causespt_BR
ipen.type.genreResumo
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sigepi.autor.atividadeGATTI, LUCIANA V.:670:1010:Spt_BR
sigepi.autor.atividadeDOMINGUES, LUCAS G.:6548:1010:Npt_BR
sigepi.autor.atividadeCORREIA, CAIO C.S.:9389:1010:Npt_BR
sigepi.autor.atividadeBORGES, VIVIANE F.:9386:1010:Npt_BR
sigepi.autor.atividadeBASSO, LUANA S.:8668:-1:Npt_BR
sigepi.autor.atividadeSANTOS, RICARDO S.:14384:1010:Npt_BR
sigepi.autor.atividadeCRISPIM, STEPHANE P.:14427:1010:Npt_BR
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