| 1. Identificação | |
| Tipo de Referência | Artigo em Evento (Conference Proceedings) |
| Site | plutao.sid.inpe.br |
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identificador | J8LNKAN8RW/38JEERF |
| Repositório | dpi.inpe.br/plutao/2010/11.11.17.49.25 |
| Última Atualização | 2011:09.15.12.09.45 (UTC) marciana |
| Repositório de Metadados | dpi.inpe.br/plutao/2010/11.11.17.49.26 |
| Última Atualização dos Metadados | 2021:02.10.18.36.03 (UTC) administrator |
| Chave Secundária | INPE--PRE/ |
| Rótulo | lattes: 5138927797059158 3 CunhaAlvaCanaSamp:2010:AsEnBa |
| Chave de Citação | CunhaAlvaCanaSamp:2010:AsEnBa |
| Título | Assessment of the energy balance of forest and "caatinga" sites in Brazil from SSiB and IBIS models  |
| Ano | 2010 |
| Data de Acesso | 23 maio 2024 |
| Tipo Secundário | PRE CI |
| Número de Arquivos | 1 |
| Tamanho | 213 KiB |
| 2. Contextualização | |
| Autor | 1 Cunha, Ana Paula Martins do Amaral 2 Alvalá, Regina Célia dos Santos 3 Canavesi, Vanessa 4 Sampaio, Gilvan |
| Grupo | 1 2 CST-CST-INPE-MCT-BR 3 CPT-CPT-INPE-MCT-BR |
| Afiliação | 1 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Endereço de e-Mail do Autor | 1 2 3 vanessa.canavesi@cptec.inpe.br |
| Endereço de e-Mail | vanessa.canavesi@cptec.inpe.br |
| Nome do Evento | Agricultural and Forest Meteorology Conference, 29. |
| Localização do Evento | Keystone - Colorado |
| Data | 2010 |
| Título do Livro | Proceedings |
| Tipo Terciário | Poster |
| Histórico (UTC) | 2010-12-06 14:15:22 :: lattes -> ricardo :: 2010 2010-12-07 11:40:36 :: ricardo -> marciana :: 2010 2011-09-15 12:09:45 :: marciana -> administrator :: 2010 2021-02-10 18:36:03 :: administrator -> marciana :: 2010 |
| 3. Conteúdo e estrutura | |
| É a matriz ou uma cópia? | é a matriz |
| Estágio do Conteúdo | concluido |
| Transferível | 1 |
| Tipo do Conteúdo | External Contribution |
| Resumo | Changes in land surface properties, often associated with changing vegetation and soil characteristics, have dramatic effects on the climate simulated by general circulation models (GCMs). Thus, during the last several years efforts are aimed to evaluating land surface parameterizations. Currently, there is a diversity of soil-vegetation-atmosphere schemes. The objectives of these models are mainly in the improvement of bottom boundary condition of the atmospheric models by accurately evaluating the ground-surface impact on the atmosphere. The surface schemes ranges from those that simulate only the exchange of momentum, energy and water vapor between vegetated surface and atmosphere, as the "Simplified Simple Biosphere Model" SSiB, even more sophisticated models, as, for example, the "Integrated Biosphere Simulator Model" IBIS, which includes, in addition to processes listed above, the terrestrial carbon and nutrient cycling, and vegetation dynamics. The SSiB is coupled to the global and regional meteorological models of the Brazilian Center for Weather Forecasting and Climate Studies/Brazilian National Institute for Space Research (CPTEC/INPE). It includes a complex treatment of the albedo, the energy balance of the surface and the soil moisture. Recently, the IBIS-2.6 model of dynamical vegetation was also coupled to the GCM/CPTEC to make it able to diagnose the loss of biomass and its impact on storage of energy and water. To test the surface modelxs performance, different simulations are been proposed. The goal of this work is evaluating the energy balance simulated by SSiB and IBIS models against two sets of measurements. The data were collected at a tropical rainforest in the Brazilian Amazon and in the caatinga in Northeast Brazil. The dataset for Amazonian forest used in this work was collected at the Reserva Biológica do Jaru (62º22'W; 10º45'S) forest site, located in the state of Rondônia, Brazil. Micrometeorological and hydrological data were collected during 2001, as part of the Large-Scale Biosphere-Atmosphere Experiment in Amazonia LBA. The caatinga is a type of vegetation adapted to the semi-arid conditions, with varied physiognomy, and covers the northeast portion of Brazil. It occupies an extension of about 800,000 km2 that corresponds to 70% of the region. Micrometeorological and hydrological data were collected from July 2004 to June 2005, in a site located in the Agricultural Research Center of the Semi-Arid Tropic CPATSA (9°03' S; 40°19' W; 350 m, Petrolina, Pernambuco, Brazil. In this study, the surface schemes were used in the so-called off-line mode. In this version, the models were not coupled with the atmospheric model and were driven using prescribed atmospheric forcing. The results of the energy balance simulated by both models and for each vegetation type were compared. The results showed that the net radiation was well simulated by SSiB model for both caatinga and forest sites, while the latent heat fluxes were overestimated for both sites. In contrast, the sensible heat flux was underestimated for forest and overestimated for caatinga, mainly during the night period; notwithstanding, the values for forest were nearer to the observed ones. With the IBIS model, the simulations for the radiation balance were close to the observed data for forest site, in contrast to the obtained for caatinga site. The latent heat flux and the sensible heat flux were underestimated by the model for caatinga. For forest site, the energy partition was not well simulated; thus, the SSiB model provides better results. It is highlighted that the simulations with the IBIS model were made considering the parameters previously calibrated for both forest and caatinga. Thus, these results are preliminary and other analyses are still necessary to better understand the biophysical processes involved. ion balance were close to the observed data for forest site, in contrast to the obtained for caatinga site. The latent heat flux and the sensible heat flux were underestimated by the model for caatinga. For forest site, the energy partition was not well simulated; thus, the SSiB model provides better results. It is highlighted that the simulations with the IBIS model were made considering the parameters previously calibrated for both forest and caatinga. Thus, these results are preliminary and other analyses are still necessary to better understand the biophysical processes involved. |
| Área | CST |
| Arranjo 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > Assessment of the... |
| Arranjo 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > COCST > Assessment of the... |
| Conteúdo da Pasta doc | acessar |
| Conteúdo da Pasta source | não têm arquivos |
| Conteúdo da Pasta agreement | não têm arquivos |
| 4. Condições de acesso e uso | |
| URL dos dados | http://plutao.sid.inpe.br/ibi/J8LNKAN8RW/38JEERF |
| URL dos dados zipados | http://plutao.sid.inpe.br/zip/J8LNKAN8RW/38JEERF |
| Idioma | en |
| Arquivo Alvo | 172523.pdf |
| Grupo de Usuários | lattes marciana |
| Visibilidade | shown |
| Permissão de Leitura | allow from all |
| Permissão de Atualização | não transferida |
| 5. Fontes relacionadas | |
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3EUPEJL 8JMKD3MGPCW/3F3T29H |
| Lista de Itens Citando | sid.inpe.br/bibdigital/2013/10.19.20.40 1 |
| Acervo Hospedeiro | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notas | |
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi edition editor format isbn issn keywords lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |
| 7. Controle da descrição | |
| e-Mail (login) | marciana |
| atualizar | |