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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/3TTJJEH
Repositóriosid.inpe.br/mtc-m21c/2019/08.28.11.22
Última Atualização2019:08.28.11.22.28 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21c/2019/08.28.11.22.28
Última Atualização dos Metadados2020:01.06.11.42.18 (UTC) administrator
DOI10.3390/rs11141650
ISSN2072-4292
Chave de CitaçãoPetriGalv:2019:SeSeMO
TítuloSensitivity of seven MODIS vegetation indices to BRDF effects during the amazonian dry season
Ano2019
MêsJuly
Data de Acesso09 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho6764 KiB
2. Contextualização
Autor1 Petri, Caio Arlanche
2 Galvão, Lênio Soares
Identificador de Curriculo1
2 8JMKD3MGP5W/3C9JHLF
ORCID1 0000-0001-5221-9715
2 0000-0002-8313-0497
Grupo1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR
2 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1 caio.petri@inpe.br
2 lenio.galvao@inpe.br
RevistaRemote Sensing
Volume11
Número14
Páginase1650
Nota SecundáriaB3_GEOGRAFIA B3_ENGENHARIAS_I B4_GEOCIÊNCIAS B4_CIÊNCIAS_AMBIENTAIS B5_CIÊNCIAS_AGRÁRIAS_I
Histórico (UTC)2019-08-28 11:22:28 :: simone -> administrator ::
2019-08-28 11:22:29 :: administrator -> simone :: 2019
2019-08-28 11:22:43 :: simone -> administrator :: 2019
2020-01-06 11:42:18 :: administrator -> simone :: 2019
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-ChaveBRDF
vegetation indices
Amazon
dry season
greening
viewing-illumination effects
MODIS
ResumoWe used Moderate Resolution Imaging Spectroradiometer (MODIS) data, processed by the multi-angle implementation of atmospheric correction (MAIAC) algorithm, to investigate the sensitivity of seven vegetation indices (VIs) to bidirectional reflectance distribution function (BRDF) effects in the dry season (June-September) of the Brazilian Amazon. The analysis was first performed over three sites, located from north to south of the Amazon, and then extended into the entire region. We inspected for differences in viewing-illumination parameters and pixel quality retrievals during MODIS data acquisition over the region. By comparing and correlating corrected and non-corrected data for bidirectional effects, we evaluated monthly changes in reflectance and VIs (2000-2014). Finally, we computed the effect size of the BRDF correction using non-parametric Mann-Whitney tests and Cohen's r metrics. The results showed that the most anisotropic VIs were the enhanced vegetation index (EVI), photochemical reflectance index (PRI), and shortwave infrared normalized difference (SWND). These VIs presented the largest relative changes and the lowest correlation coefficients, between corrected and non-corrected data, because of the large effect size of the BRDF. The least anisotropic VI was the normalized difference water index (NDWI). The anisotropy of these VIs was stronger in the northern Amazon. It increased from the beginning to the end of the dry season, following changes in the relative azimuth angle (RAA) toward the BRDF hotspot in September. The modifications in the relative proportions of backscattering observations used in composite products caused a reflectance increase in all MODIS bands at the end of the dry season, especially in the near infrared (NIR). The reflectance decreased after BRDF correction. Because of the atmospheric effects, the view zenith angle (VZA) of the pixels selected in composite products decreased toward the south of the Amazon. In the southern Amazon, the seasonal amplitude in the solar zenith angle (SZA) reached values close to 18 degrees. For the most anisotropic index, the BRDF correction removed, on average, 30% of the EVI signal in June, and 60% of the EVI signal in September, reducing dry season variations over time. The results reinforce the need for bidirectional correction of MODIS data before the seasonal and inter-annual analyses of the most anisotropic VIs.
ÁreaSRE
Arranjo 1urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Sensitivity of seven...
Arranjo 2urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Sensitivity of seven...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
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4. Condições de acesso e uso
URL dos dadoshttp://mtc-m21c.sid.inpe.br/ibi/8JMKD3MGP3W34R/3TTJJEH
URL dos dados zipadoshttp://mtc-m21c.sid.inpe.br/zip/8JMKD3MGP3W34R/3TTJJEH
Idiomaen
Arquivo Alvoremotesensing-11-01650.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ER446E
8JMKD3MGPCW/3F3NU5S
Lista de Itens Citandosid.inpe.br/bibdigital/2013/10.18.22.34 1
sid.inpe.br/mtc-m21/2012/07.13.14.53.28 1
sid.inpe.br/bibdigital/2013/09.13.21.11 1
DivulgaçãoWEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS.
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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