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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m16b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificadorx6e6X3pFwXQZ3DUS8rS5/EgF9e
Repositóriocptec.inpe.br/walmeida/2004/11.25.09.20
Última Atualização2004:11.25.02.00.00 (UTC) administrator
Repositório de Metadadoscptec.inpe.br/walmeida/2004/11.25.09.20.52
Última Atualização dos Metadados2022:03.24.03.57.21 (UTC) administrator
Chave SecundáriaINPE-11910-PRE/7256
ISSN1051-0761
Chave de CitaçãoKruijtEVAOCMNKM:2004:RoEdCo
TítuloThe robustness of eddy correlation fluxes for Amazon rain forest conditions
Ano2004
MêsAug.
Data de Acesso04 maio 2024
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho277 KiB
2. Contextualização
Autor 1 Kruijt, B.
 2 Elbers, J. A.
 3 Von Randow, Celso
 4 Araujo, A. C.
 5 Oliveira, P. J.
 6 Culf, A.
 7 Manzi, Antonio Ocimar
 8 Nobre, Antonio Donato
 9 Kabat, P.
10 Moors, E. J.
Grupo 1 CPT-INPE-MCT-BR
 2 LBA-INPE-MCT-BR
Afiliação 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil
Endereço de e-Mailatus@cptec.inpe.br
RevistaEcological Applications
Volume14
Número4 - Supplement
PáginasS101- S113
Histórico (UTC)2005-01-14 11:09:59 :: fabia -> administrator ::
2008-06-10 19:51:25 :: administrator -> estagiario ::
2010-05-11 16:55:26 :: estagiario -> marciana ::
2011-12-05 12:10:42 :: marciana -> administrator ::
2022-03-24 03:57:21 :: administrator -> marciana :: 2004
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chavecoordinate rotation
delay corrections
flux uncertainty
frequency corrections
low
ResumoWe analyzed errors and uncertainties in time-integrated eddy correlation data for sites in the Amazon. A well-known source of potential error in eddy correlation is through possible advective losses of CO2 emissions during calm nights. There are also questions related to the treatment of low frequencies, non-horizontal flow, and uncertainties in, e.g., corrections for tube delay and frequency loss, as well as the effect of missing data. In this study, we systematically explore these issues for the specific situation of flux measurements at two Amazon forest sites. Results indicate that, for this specific environment with tall forest and tall towers, errors and uncertainties caused by data spikes, delay corrections, and high-frequency loss are small (,3% on an annual basis). However, sensitivities to the treatment of low frequencies and non-horizontal flow can be large, especially if the landscape is not homogeneous. Given that there is no consensus on methodology here, this represents an uncertainty of 10-25% on annual total carbon uptake. The other large uncertainty is clearly in the nighttime fluxes. Two different ways to evaluate the validity of these fluxes resulted in at least a 100% difference of annual totals. Finally, we show that uncertainty (standard errors) associated with data gaps can be reduced to ,0.5 Mg·ha21·yr21 if data are covering at least half of the time, with random spread. Overall uncertainty, on annual CO2 fluxes, excluding the nighttime dilemma, is estimated at 612% (central Amazon site) to 632% (southwest Amazon site). Additionally, the nighttime uncertainty is of similar magnitude as the time-integrated fluxes themselves.
ÁreaMET
Arranjo 1urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > The robustness of...
Arranjo 2urlib.net > BDMCI > Fonds > Produção até 2016 > LBA > The robustness of...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreementnão têm arquivos
4. Condições de acesso e uso
URL dos dadoshttp://mtc-m16b.sid.inpe.br/ibi/x6e6X3pFwXQZ3DUS8rS5/EgF9e
URL dos dados zipadoshttp://mtc-m16b.sid.inpe.br/zip/x6e6X3pFwXQZ3DUS8rS5/EgF9e
Idiomaen
Arquivo Alvokruijt_Robustness.pdf
Grupo de Usuáriosadministrator
fabia
marciana
Visibilidadeshown
Detentor da CópiaSID/SCD
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Leituraallow from all
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3EUPEJL
8JMKD3MGPCW/46J83KE
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.06.18.03 1
DivulgaçãoWEBSCI; PORTALCAPES.
Acervo Hospedeirocptec.inpe.br/walmeida/2003/04.25.17.12
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyright creatorhistory descriptionlevel doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url
7. Controle da descrição
e-Mail (login)marciana
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