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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Siteplutao.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W/3SCS3UN
Repositóriosid.inpe.br/plutao/2018/12.14.20.01.50   (acesso restrito)
Última Atualização2018:12.18.10.02.12 (UTC) lattes
Repositório de Metadadossid.inpe.br/plutao/2018/12.14.20.01.51
Última Atualização dos Metadados2021:07.28.22.39.36 (UTC) administrator
DOI10.1016/j.isprsjprs.2018.07.016
ISSN0924-2716
1872-8235
Rótulolattes: 5507769922001047 3 AlmeidaDelGalAraRam:2018:ImMOGr
Chave de CitaçãoAlmeidaDelGalAraRam:2018:ImMOGr
TítuloImprovements of the MODIS Gross Primary Productivity model based on a comprehensive uncertainty assessment over the Brazilian Amazonia
Ano2018
Data de Acesso04 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho4262 KiB
2. Contextualização
Autor1 Almeida, Catherine Torres de
2 Delgado, Rafael Coll
3 Galvão, Lênio Soares
4 Aragão, Luiz Eduardo Oliveira e Cruz de
5 Ramos, María Concepción
Identificador de Curriculo1
2
3 8JMKD3MGP5W/3C9JHLF
Grupo1 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
2
3 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
4 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Universidade Federal Rural do Rio de Janeiro (UFRRJ)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 University of Lleida
Endereço de e-Mail do Autor1 catherine.almeida@inpe.br
2
3 lenio.galvao@inpe.br
4 luiz.aragao@inpe.br
RevistaISPRS Journal of Photogrammetry and Remote Sensing
Volume145
Páginas268-283
Nota SecundáriaA1_GEOCIÊNCIAS A2_INTERDISCIPLINAR A2_CIÊNCIAS_AMBIENTAIS B1_ENGENHARIAS_IV B1_BIODIVERSIDADE C_CIÊNCIAS_AGRÁRIAS_I
Histórico (UTC)2018-12-14 21:20:45 :: lattes -> administrator :: 2018
2018-12-18 09:58:52 :: administrator -> lattes :: 2018
2018-12-18 10:02:13 :: lattes -> administrator :: 2018
2021-07-28 22:39:36 :: administrator -> simone :: 2018
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-ChaveGPP
MODIS
Amazon
ResumoTropical forests and savannas are responsible for the largest proportion of global Gross Primary Productivity (GPP), a major component of the global carbon cycle. However, there are still deficiencies in the spatial and temporal information of tropical photosynthesis and its relations with environmental controls. The MOD17 product, based on the Light Use Efficiency (LUE) concept, has been updated to provide GPP estimates around the globe. In this research, the MOD17 GPP collections 5.0, 5.5 and 6.0 and their sources of uncertainties were assessed by using measurements of meteorology and eddy covariance GPP from eight flux towers in Brazilian tropical ecosystems, from 2000 to 2006. Results showed that the MOD17 collections tend to overestimate GPP at low productivity sites (bias between 111% and 584%) and underestimate it at high productivity sites (bias between −2% and −18%). Overall, the MOD17 product was not able to capture the GPP seasonality, especially in the equatorial sites. Recalculations of MOD17 GPP using site-specific meteorological data, corrected land use/ land cover (LULC) classification, and tower-based LUE parameter showed improvements for some sites. However, the improvements were not sufficient to estimate the GPP seasonality in the equatorial forest sites. The use of a new soil moisture constraint on the LUE, based on the Evaporative Fraction, just showed improvements in water-limited sites. Modifications in the algorithm to account for separate LUE for cloudy and clear sky days presented noticeably improved GPP estimates in the tropical ecosystems investigated, both in magnitude and in seasonality. The results suggest that the high cloudiness makes the diffuse radiation an important factor to be considered in the LUE control, especially over dense forests. Thus, the MOD17 GPP algorithm needs more updates to accurately estimate productivity in tropical ecosystems.
ÁreaSRE
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Conteúdo da Pasta docacessar
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4. Condições de acesso e uso
Idiomaen
Arquivo Alvoalmeida_improvements.pdf
Grupo de Leitoresadministrator
lattes
Visibilidadeshown
Política de Arquivamentodenypublisher denyfinaldraft24
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ER446E
Lista de Itens Citandosid.inpe.br/bibdigital/2013/09.13.21.11 2
DivulgaçãoWEBSCI
Acervo Hospedeirodpi.inpe.br/plutao@80/2008/08.19.15.01
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn lineage mark mirrorrepository month nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url usergroup
7. Controle da descrição
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