| 1. Identificação | ||||
| Tipo de Referência | Artigo em Evento (Conference Proceedings) | |||
| Site | mtc-m16b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Repositório | cptec.inpe.br/adm_conf/2005/10.31.23.42 | |||
| Última Atualização | 2006:04.15.16.22.44 (UTC) administrator | |||
| Repositório de Metadados | cptec.inpe.br/adm_conf/2005/10.31.23.42.37 | |||
| Última Atualização dos Metadados | 2022:03.26.18.01.23 (UTC) administrator | |||
| Chave Secundária | INPE-13827-PRE/9013 | |||
| Chave de Citação | BecerraAlva:2006:DeTrSa | |||
| Título | Detection of tropical Savannah (Cerrado) physiognomies in the Legal Amazon by the application of the vegetation and moisture indices with MODIS time series data  | |||
| Formato | CD-ROM; On-line. | |||
| Ano | 2006 | |||
| Data de Acesso | 20 maio 2024 | |||
| Tipo Secundário | PRE CI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 283 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Becerra, Jorge Alberto Bustamante 2 Alvalá, Regina Célia dos Santos | |||
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JJ59 | |||
| Grupo | 1 2 DMA-INPE-MCT-BR | |||
| Afiliação | 1 2 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 jabb@cptec.inpe.br 2 regina@cptec.inpe.br | |||
| Editor | Vera, Carolina Nobre, Carlos | |||
| Endereço de e-Mail | jabb@cptec.inpe.br | |||
| Nome do Evento | International Conference on Southern Hemisphere Meteorology and Oceanography, 8 (ICSHMO). | |||
| Localização do Evento | Foz do Iguaçu | |||
| Data | 24-28 Apr. 2006 | |||
| Editora (Publisher) | American Meteorological Society (AMS) | |||
| Cidade da Editora | 45 Beacon Hill Road, Boston, MA, USA | |||
| Páginas | 861-867 | |||
| Título do Livro | Proceedings | |||
| Tipo Terciário | Poster | |||
| Organização | American Meteorological Society (AMS) | |||
| Histórico (UTC) | 2005-10-31 23:42:37 :: jabb@cptec.inpe.br -> adm_conf :: 2005-12-16 02:30:44 :: adm_conf -> jabb@cptec.inpe.br :: 2006-03-29 12:07:13 :: jabb@cptec.inpe.br -> administrator :: 2006-04-18 21:19:35 :: administrator -> lise@dpi.inpe.br :: 2010-12-28 12:36:49 :: lise@dpi.inpe.br -> administrator :: 2010-12-29 15:59:05 :: administrator -> lise@dpi.inpe.br :: 2006 2010-12-29 16:06:15 :: lise@dpi.inpe.br -> administrator :: 2006 2010-12-29 18:54:48 :: administrator -> banon :: 2006 2011-01-02 17:15:15 :: banon -> administrator :: 2006 2022-03-26 18:01:23 :: administrator -> :: 2006 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Palavras-Chave | Land cover classification Cerrado physiognomies Legal Amazon vegetation and moisture index MODIS image analysis | |||
| Resumo | Deforestation and agricultural expansion are the main anthropogenic factors that determine the land cover changes in the Legal Brazilian Amazon. These changes could alter the dynamic equilibrium between regional climate and vegetation. The mapping of the land cover usually clusters, as a single class, the forested, savanna type and grassland Cerrado physiognomies. This is caused by the difficulty to differentiate these physiognomies among them, due to similar spectral responses. However, the spectral behavior of these land cover classes may be identified when they are analyzed along the annual cycle, including both the dry and the rainy season. To validate this hypothesis the State of Tocantins, which is characterized by presenting extensive savannah areas, was chosen. The main data used were two MODIS Vegetation Indices, the normalized difference vegetation index (NDVI) and the enhanced vegetation index (EVI), both for 16-days composition periods and 250 m resolution, and the near and medium infrared bands. A moisture index, the land surface water index (LSWI), was computed using these bands. To cover the area of the study, a mosaic of two MODIS tiles (h13v09 and h13v10) was used. For the seasonal analysis, four mosaics were used: for the rainy season, from January 01 to 16, 2004, and from March 21 to April 05, 2004, and for the dry season, from July 11 to 26, 2004 and September 29 to October 14, 2004. For each period, 3 mosaics were elaborated, corresponding to NDVI, EVI and LSWI index images, totaling 12 mosaics. The land cover classes were determined through an unsupervised classification technique of the index images. To validate the results of the classification, the Global Land Cover - GLC 2000 map (1 km resolution) was used. Finally, for the determination of the seasonal patterns of each class evaluated, a longitudinal profile was elaborated from a transect that includes the main classes of vegetation cover. The results of the classification show the occurrence of mixtures between classes of land cover: deciduous forest with agriculture, during the rainy season, and agriculture with savannah, during the dry season. They are identified from the profiles of the 3 indices that show similar tendency in the grouping of the land cover classes. Thus, a way to identify the Cerrado physiognomies in the Amazon region could be, first, the separation of the Cerrado class from the other classes using the rainy season data and, thereafter, by the classification of the Cerrado physiognomies, using the dry season data. | |||
| Área | MET | |||
| Tipo | Impacts of land cover and land use changes | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Detection of tropical... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source |
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| Conteúdo da Pasta agreement | não têm arquivos | |||
| 4. Condições de acesso e uso | ||||
| URL dos dados | http://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.31.23.42 | |||
| URL dos dados zipados | http://urlib.net/zip/cptec.inpe.br/adm_conf/2005/10.31.23.42 | |||
| Idioma | en | |||
| Arquivo Alvo | 861-868.pdf | |||
| Grupo de Usuários | administrator jabb@cptec.inpe.br administrator banon | |||
| Visibilidade | shown | |||
| Detentor da Cópia | SID/SCD | |||
| Permissão de Leitura | allow from all | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/46JKC45 | |||
| Lista de Itens Citando | sid.inpe.br/bibdigital/2022/03.26.17.47 4 | |||
| Acervo Hospedeiro | cptec.inpe.br/nobre/2005/06.02.21.14 cptec.inpe.br/walmeida/2003/04.25.17.12 | |||
| 6. Notas | ||||
| Nota | 1 | |||
| Campos Vazios | archivingpolicy archivist callnumber contenttype copyright creatorhistory descriptionlevel dissemination documentstage doi edition identifier isbn issn label lineage mirrorrepository nextedition notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark url versiontype volume | |||