Fechar
Metadados

1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/3U9RMPH
Repositóriosid.inpe.br/mtc-m21c/2019/10.24.10.55   (acesso restrito)
Última Atualização2019:10.24.10.55.44 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21c/2019/10.24.10.55.44
Última Atualização dos Metadados2021:01.02.03.44.21 (UTC) administrator
DOI10.3390/w11091911
ISSN2073-4441
Chave de CitaçãoSouzaRRZAGDAM:2019:EvMOAl
TítuloEvaluation of MOD16 algorithm over irrigated rice paddy using flux tower measurements in southern Brazil
Ano2019
MêsSept
Data de Acesso03 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho19167 KiB
2. Contextualização
Autor1 Souza, Vanessa de Arruda
2 Roberti, Débora Regina
3 Ruhoff, Anderson Luis
4 Zimmer, Tamíres
5 Adamatti, Daniela Santini
6 Gonçalves, Luis Gustavo Gonçalves de
7 Diaz, Marcelo Bortoluzzi
8 Alves, Rita de Cássia Marques
9 Moraes, Osvaldo L. L. de
ORCID1 0000-0002-8518-1271
2 0000-0002-3902-0952
3 0000-0002-3585-2022
Grupo1
2
3
4
5
6 DIDMD-CGCPT-INPE-MCTIC-GOV-BR
Afiliação1 Universidade Federal do Rio Grande do Sul (UFRGS)
2 Universidade Federal de Santa Maria (UFSM)
3 Universidade Federal do Rio Grande do Sul (UFRGS)
4 Universidade Federal de Santa Maria (UFSM)
5 Universidade Federal do Rio Grande do Sul (UFRGS)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
7 Universidade Federal de Santa Maria (UFSM)
8 Universidade Federal do Rio Grande do Sul (UFRGS)
9 Universidade Federal de Santa Maria (UFSM)
Endereço de e-Mail do Autor1 v.arruda.s@gmail.com
2 debora@ufsm.br
3
4
5
6 luis.goncalves@inpe.br
RevistaWater
Volume11
Número9
Páginase1911
Nota SecundáriaB3_ENGENHARIAS_I
Histórico (UTC)2019-10-24 10:57:07 :: simone -> administrator :: 2019
2021-01-02 03:44:21 :: 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-Chaveevapotranspiration
flooded rice paddy
irrigation
remote sensing
MODIS
MOD16 algorithm
eddy covariance
meteorological measurements
ResumoEvapotranspiration (ET) is an important component of the hydrological cycle. Understanding the ET process has become of fundamental importance given the scenario of global change and increasing water use, especially in the agricultural sector. Determining ET over large agricultural areas is a limiting factor due to observational data availability. In this regard, remote sensing data has been used to estimate ET. In this study, we evaluated the Moderate-Resolution Imaging Spectroradiometer (MODIS) land surface ET product estimates (hereafter MOD16 ET - MODIS Global Terrestrial Evapotranspiration Product) over two rice paddy areas in Southern Brazil, through the ET measured using the eddy covariance technique (hereafter EC). The energy balance components were evaluated during fallow and flooded seasons showing latent heat flux dominates in both seasons. The results showed that MOD16 ET underestimated EC measurements. Overall, the RMSE (root mean square error) ranged between 13.40 and 16.35 mm 8-day(-1) and percent bias (PBIAS) ranged between -33.7% and -38.7%. We also assessed the ET (measured and estimated) main drivers, with EC yielding higher correlation against observed net radiation (R-n) and global radiation (R-g), followed by air temperature (Temp) and vapor pressure deficit (VPD), whilst MOD16 ET estimates yielded higher correlation against leaf area index (LAI) and fraction of photosynthetically active radiation (fPAR). The MOD16 algorithm was forced with meteorological measurements but the results did not improve as expected, suggesting a low sensitivity to meteorological inputs. Our results indicated when a water layer was present over the soil surface without vegetation (LAI around zero), the largest differences between EC measurements and MOD16 ET were found. In this period, the expected domain of soil evaporation was not observed in MOD16 ET physical processes partition, indicating the algorithm was not able to detect areas with high soil moisture. In general, the MOD16 ET product presented low accuracy when compared against experimental measurements over flooded rice paddy, suggesting more studies are necessary, in order to reduce uncertainties associated to the land cover conditions.
ÁreaMET
ArranjoEvaluation of MOD16...
Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
agreement.html 24/10/2019 07:55 1.0 KiB 
4. Condições de acesso e uso
Idiomaen
Arquivo Alvowater-11-01911-v2.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/43SKC35
DivulgaçãoWEBSCI; PORTALCAPES; MGA; COMPENDEX; SCOPUS.
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
e-Mail (login)simone
atualizar 


Fechar