| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3PJDAD8 | |||
| Repositório | sid.inpe.br/mtc-m21b/2017/09.06.14.34 (acesso restrito) | |||
| Última Atualização | 2017:09.06.14.34.12 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/09.06.14.34.12 | |||
| Última Atualização dos Metadados | 2018:06.04.02.27.50 (UTC) administrator | |||
| DOI | 10.3390/f8080277 | |||
| ISSN | 1999-4907 | |||
| Chave de Citação | TreuhaftLeGoKeSaNeAl:2017:TrStBi | |||
| Título | Tropical-forest structure and biomass dynamics from TanDEM-X radar interferometry  | |||
| Ano | 2017 | |||
| Mês | July | |||
| Data de Acesso | 16 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 12216 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Treuhaft, Robert 2 Lei, Yang 3 Gonçalves, Fabio 4 Keller, Michael 5 Santos, João Roberto dos 6 Neumann, Maxim 7 Almeida, André | |||
| Identificador de Curriculo | 1 2 3 4 5 8JMKD3MGP5W/3C9JHF4 | |||
| Grupo | 1 2 3 4 5 DIDSR-CGOBT-INPE-MCTIC-GOV-BR | |||
| Afiliação | 1 Jet Propulsion Laboratory, California Institute of Technology 2 Jet Propulsion Laboratory, California Institute of Technology 3 Canopy Remote Sensing Solutions 4 Jet Propulsion Laboratory, California Institute of Technology 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Amazon 7 Universidade Federal de Sergipe (UFS) | |||
| Endereço de e-Mail do Autor | 1 robert.treuhaft@jpl.nasa.gov 2 yang.lei@jpl.nasa.gov 3 fabio@canopyrss.tech 4 mkeller.co2@gmail.com 5 joao.roberto@inpe.br 6 neumann.maxim@gmail.com 7 andre.almeida@ufs.br | |||
| Revista | Forests | |||
| Volume | 8 | |||
| Número | 8 | |||
| Páginas | Article number 277 | |||
| Histórico (UTC) | 2017-09-06 14:35:57 :: simone -> administrator :: 2017 2018-06-04 02:27:50 :: administrator -> simone :: 2017 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Palavras-Chave | tropical forest dynamics aboveground biomass interferometric SAR TanDEM-X | |||
| Resumo | Changes in tropical-forest structure and aboveground biomass (AGB) contribute directly to atmospheric changes in CO2, which, in turn, bear on global climate. This paper demonstrates the capability of radar-interferometric phase-height time series at X-band (wavelength = 3 cm) to monitor changes in vertical structure and AGB, with sub-hectare and monthly spatial and temporal resolution, respectively. The phase-height observation is described, with a focus on how it is related to vegetation-density, radar-power vertical profiles, and mean canopy heights, which are, in turn, related to AGB. The study site covers 18 × 60 km in the Tapajós National Forest in the Brazilian Amazon. Phase-heights over Tapajós were measured by DLR's TanDEM-X radar interferometer 32 times in a 3.2 year period from 2011-2014. Fieldwork was done on 78 secondary and primary forest plots. In the absence of disturbance, rates of change of phase-height for the 78 plots were estimated by fitting the phase-heights to time with a linear model. Phase-height time series for the disturbed plots were fit to the logistic function to track jumps in phase-height. The epochs of clearing for the disturbed plots were identified with ≈1-month accuracy. The size of the phase-height change due to disturbance was estimated with ≈2-m accuracy. The monthly time resolution will facilitate REDD+ monitoring. Phase-height rates of change were shown to correlate with LiDAR RH90 height rates taken over a subset of the TanDEM-X data's time span (2012-2013). The average rate of change of phase-height across all 78 plots was 0.5 m-yr-1 with a standard deviation of 0.6 m-yr-1. For 42 secondary forest plots, the average rate of change of phase-height was 0.8 m-yr-1 with a standard deviation of 0.6 m-yr-1. For 36 primary forest plots, the average phase-height rate was 0.1 m-yr-1 with a standard deviation of 0.5 m-yr-1. A method for converting phase-height rates to AGB-rates of change was developed using previously measured phase-heights and field-estimated AGB. For all 78 plots, the average AGB-rate was 1.7 Mg-ha-1-yr-1 with a standard deviation of 4.0 Mg-ha-1-yr-1. The secondary-plot average AGB-rate was 2.1 Mg-ha-1-yr-1, with a standard deviation of 2.4 Mg-ha-1-yr-1. For primary plots, the AGB average rate was 1.1 Mg-ha-1-yr-1 with a standard deviation of 5.2 Mg-ha-1-yr-1. Given the standard deviations and the number of plots in each category, rates in secondary forests and all forests were significantly different from zero; rates in primary forests were consistent with zero. AGB-rates were compared to change models for Tapajós and to LiDAR-based change measurements in other tropical forests. Strategies for improving AGB dynamical monitoring with X-band interferometry are discussed. | |||
| Área | SRE | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Tropical-forest structure and... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Arquivo Alvo | forests-08-00277-v3.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ER446E | |||
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.51.02 2 | |||
| Divulgação | WEBSCI | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||
