| 1. Identificação | |
| Tipo de Referência | Resumo em Evento (Conference Proceedings) |
| Site | mtc-m16d.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | 8JMKD3MGP7W/389BNNH |
| Repositório | sid.inpe.br/mtc-m19/2010/09.16.18.25 |
| Repositório de Metadados | sid.inpe.br/mtc-m19/2010/09.16.18.25.54 |
| Última Atualização dos Metadados | 2020:08.17.19.27.13 (UTC) simone |
| Chave Secundária | INPE--PRE/ |
| Chave de Citação | AraujoDoWaGaKrVoMa:2010:CoMeCO |
| Título | Comparative measurements of CO2 fluxes from a plateau and valley in central Amazonia  |
| Ano | 2010 |
| Data de Acesso | 18 maio 2024 |
| Tipo Secundário | PRE CI |
| 2. Contextualização | |
| Autor | 1 Araujo, Alessandro C. de 2 Dolman, A. J. 3 Waterloo, M. 4 Gash, J. H. 5 Kruijt, B. 6 Von Randow, Celso 7 Manzi, Antonio Ocimar |
| Grupo | 1 2 3 4 5 6 CST-CST-INPE-MCT-BR |
| Afiliação | 1 CESTU, Universidade do Estado do Amazonas, Manaus, Brazil 2 Hydrology and Geo-Environmental Sciences, VU University Amsterdam, Amsterdam, Netherlands 3 Hydrology and Geo-Environmental Sciences, VU University Amsterdam, Netherlands 4 Centrer for Ecology and Hydrology, Wallingford, United Kingdom 5 ESS-CC, Alterra, Wageningen, Netherlands 6 Instituto Nacional de Pesquisas Espaciais (INPE) 7 Programa LBA, Instituto Nacional de Pesquisas da Amazonia, Manaus, Brazil |
| Endereço de e-Mail do Autor | 1 alessandro.araujo@gmail.com 2 han.dolman@geo.falw.vu.nl 3 maarten.waterloo@falw.vu.nl 4 jhg@ceh.ac.uk 5 bart.kruijt@wur.nl 6 celso.vonrandow@cptec.inpe.br 7 manzi@inpa.gov.br |
| Nome do Evento | The Meeting of the Americas. |
| Localização do Evento | Foz do Iguaçu |
| Data | 8-12 Aug. 2010 |
| Editora (Publisher) | AGU |
| Título do Livro | Abstracts |
| Histórico (UTC) | 2012-01-12 11:29:53 :: valdirene -> administrator :: 2010 2020-04-28 18:34:20 :: administrator -> simone :: 2010 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Palavras-Chave | biosphere atmosphere interactions carbon cycling land |
| Resumo | The landscape of central Amazonia is composed of plateaus and valleys. Previous observations have shown preferential pooling of CO2 in the valleys (de Araujo et al., 2008a b), suggesting that the change in CO2 storage in the canopy air space (S) will be spatially variable at the scale of the topography. This may affect the interpretation of the net ecosystem CO2 exchange (NEE) rates measured on the plateaus if they have used one single atmospheric CO2 concentration (\\\\\\\\\\\\\\\\\\\\\\\\\\\[CO2\\\\\\\\\\\\\\\\\\\\\\\\\\\]) vertical profile measurement system. We have measured the diurnal and seasonal variation of S along the topography by using a set of \\\\\\\\\\\\\\\\\\\\\\\\\\\[CO2\\\\\\\\\\\\\\\\\\\\\\\\\\\] vertical profile measurement systems. In addition, NEE, the above-canopy turbulent exchange of CO2 (Fc) and meteorological variables were also measured by micrometeorological towers located on the plateau and in the valley. The nocturnal accumulation of CO2 was larger on the slopes and in the valleys than on the plateau, and was also larger in the dry season than in the wet season. In addition, the release of this CO2 occurred later in the day on the slopes and in the valleys than on the plateau. Differences in the flow regime above the canopy on the plateau and in the valley, the pattern of destruction of the nocturnal boundary layer in the valley, lateral drainage of respired CO2 downslope, and the temporal, spatial and seasonal variability of soil CO2 efflux (Rsoil) are thought to have contributed to this. These conditions cause S to be lower on the slopes and in the valleys than on the plateau during midmorning hours. It is very likely that the interpretation of NEE measured on both plateau and valley may be biased by S being lower in the valley than on the plateau. We were not able to distinguish which term of the mass balance equation (either Fc or S) for the plateau was more susceptible to the CO2 released from the valley during the period after dawn. We have demonstrated that the temporal and spatial variability of S along a gentle slope may confound the interpretation of NEE. As many of the flux measurement towers are set over non-flat terrain, care must be taken when using the NEE for determining the carbon balance. |
| Área | MET |
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > Comparative measurements of... |
| Conteúdo da Pasta doc | não têm arquivos |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| Idioma | en |
| Grupo de Usuários | valdirene valdirene administrator |
| Grupo de Leitores | administrator simone valdirene |
| Visibilidade | shown |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Repositório Espelho | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F3T29H |
| Acervo Hospedeiro | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 |
| 6. Notas | |
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn label lineage mark nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | simone |
| atualizar | |