1. Identificação | |
Tipo de Referência | Artigo em Evento (Conference Proceedings) |
Site | mtc-m21c.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34R/3RGJ6FP |
Repositório | sid.inpe.br/mtc-m21c/2018/07.24.13.29 (acesso restrito) |
Última Atualização | 2019:04.01.12.32.09 (UTC) simone |
Repositório de Metadados | sid.inpe.br/mtc-m21c/2018/07.24.13.29.23 |
Última Atualização dos Metadados | 2019:04.01.12.32.10 (UTC) simone |
Chave Secundária | INPE--PRE/ |
Chave de Citação | MottusAABHMMNORS:2018:ImDiCh |
Título | Implications of diurnal changes in leaf pri on remote measurements of light use efficiency |
Ano | 2018 |
Data de Acesso | 11 maio 2024 |
Tipo Secundário | PRE CI |
Número de Arquivos | 1 |
Tamanho | 251 KiB |
|
2. Contextualização | |
Autor | 1 Mottus, Matti 2 Aalto, Juho 3 Aragão, Luiz Eduardo Oliveira e Cruz de 4 Back, Jaana 5 Hernández-Clemente, Rocío 6 Maeda, Eduardo Eiji 7 Markiet, Vincent 8 Nichol, Caroline J. 9 Oliveira Júnior, Raimundo Cosme 10 Restrepo, Coupe-Natalia 11 Saleska, Scott R. |
Grupo | 1 2 3 DIDSR-CGOBT-INPE-MCTIC-GOV-BR |
Afiliação | 1 VTT Technical Research Centre of Finland Ltd 2 University of Helsinki 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 University of Helsinki 5 University of Swansea 6 University of Helsinki 7 VTT Technical Research Centre of Finland Ltd 8 University of Edinburgh 9 Brazilian Agricultural Research Corporation 10 University of Arizona 11 University of Arizona |
Endereço de e-Mail do Autor | 1 2 3 luiz.aragao@inpe.br |
Nome do Evento | International Geoscience and Remote Sensing Symposium (IGARSS) |
Localização do Evento | Valencia |
Data | 23-27 jul. |
Título do Livro | Proceedings |
Histórico (UTC) | 2018-07-24 13:31:22 :: simone -> administrator :: 2018 2019-01-18 02:41:40 :: administrator -> simone :: 2018 |
|
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 | Photochemical Reflectance Index Light Use Efficiency Boreal forest Amazon rainforest Pinus sylvestris Betula Pendula Manilkara elata1 |
Resumo | The spectral properties of plant leaves reflect the state of their photosynthetic apparatus and the surrounding environment. A well-known mechanism of photosynthetic downregulation, active on the time scale from minutes to hours, is caused by reversible changes in the xanthophyll cycle pigments. These changes affect leaf spectral absorption and are frequently quantified using the Photochemical Reflectance Index (PRI). This index can thus be used to monitor the photosynthetic status of the vegetation canopy, potentially from a large distance, and allows for a global satellite-based monitoring of photosynthesis. Such Earth observation satellites in nearpolar orbits usually cover the same geographical location at the same local solar time at regular intervals. To facilitate the interpretation of these instantaneous remote PRI measurements and scale them to longer timescales, we measured the daily course of leaf PRI in two evergreen biomes: European boreal forest and Amazon rainforest. The daily course of PRI was different for the two locations. In Amazon, PRI was driven by incident Photosynthetic Photon Flux Density (PPFD). In the boreal location, PRI and PPFD were decoupled and PRI indicated downregulation only in the afternoon. This downregulation was confirmed with carbon exchange measurements. The study demonstrates the utility of biome-specific daily PRI curves for scaling instantaneous remote measurements to daily values and comparing data acquired at different times of day. |
Área | SRE |
Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Implications of diurnal... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
|
4. Condições de acesso e uso | |
Idioma | en |
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 |
Acervo Hospedeiro | urlib.net/www/2017/11.22.19.04 |
|
6. Notas | |
Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject targetfile tertiarymark tertiarytype type url volume |
|
7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
|