| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | x6e6X3pFwXQZ3DUS8rS5/DpyFj |
| Repository | cptec.inpe.br/walmeida/2004/09.08.15.22 |
| Last Update | 2006:01.20.11.28.00 (UTC) administrator |
| Metadata Repository | cptec.inpe.br/walmeida/2004/09.08.15.22.56 |
| Metadata Last Update | 2022:03.26.18.00.20 (UTC) administrator |
| Secondary Key | INPE-11940-PRE/7286 |
| ISSN | 0102-7786 |
| Citation Key | OyamaNobr:2004:SiPoVe |
| Title | A simple potential vegetation model for coupling with the simple biosphere model (SIB)  |
| Year | 2004 |
| Month | aug. |
| Access Date | 2024, May 18 |
| Secondary Type | PRE PN |
| Number of Files | 1 |
| Size | 702 KiB |
| 2. Context | |
| Author | 1 Oyama, Marcos Daisuke 2 Nobre, Carlos Afonso |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGQ7 |
| Group | 1 DMA-INPE-MCT-BR |
| Affiliation | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| e-Mail Address | fabia@cptec.inpe.br |
| Journal | Revista Brasileira de Meteorologia |
| Volume | 19 |
| Number | 2 |
| Pages | 203-216 |
| History (UTC) | 2006-01-20 11:28:52 :: Fabia -> administrator :: 2008-06-10 19:50:59 :: administrator -> banon :: 2010-05-11 16:49:14 :: banon -> estagiario :: 2010-05-11 16:54:42 :: estagiario -> banon :: 2010-05-14 14:21:22 :: banon -> administrator :: 2022-03-26 18:00:20 :: administrator -> marciana :: 2004 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | bioma modelo de vegetacao potencial modelo de vegetacao dinamica SiB biome potential vegetation model dynamic vegetation model |
| Abstract | Elaborou-se um modelo de vegetação potencial (i. e., um modelo que diagnostica o bioma em equilíbrio com um dado clima) capaz de reproduzir a distribuição global dos principais biomas e, em escala regional, o mapa de vegetação da América do Sul. A partir da climatologia mensal de precipitação e temperatura do ar à superficie, obtém-se um conjunto de variáveis ambientais: tempo térmico acumulado, temperatura média do mês mais frio e dois índices, um para diferenciar climas quentes de frios e outro para representar a sazonalidade do armazenamento de água do solo. Dado o conjunto de variáveis ambientais, o modelo gera como saída um bioma que pertence à classificação de vegetação utilizada pelo modelo de superficie SiB (ou SSiB). Para calcular os índices, elaborou- se um modelo de balanço hídrico simples, que considera o congelamento do solo e calcula a evapotranspiração real através da formulação de Penman-Monteith. O modelo de balanço hídrico consegue reproduzir a distribuição global de água do solo. Por comparação visual, nota-se que o modelo de vegetação potencial, chamado de CPTEC PVM, conseguiu reproduzir o padrão global dos principais biomas. Na América do Sul, o modelo foi capaz de reproduzir a vegetação dos Pampas e evita a substituição de caatinga por savanas. Uma análise objetiva mostrou que o desempenho do modelo, em escala global, é muito bom para floresta tropical e deserto; bom para floresta de coníferas, savana, semi-deserto e tundra; regular para floresta temperada, campos e caatinga; e ruim para floresta mista. Em geral, o desempenho do CPTEC PVM é comparável ao apresentado por outros modelos atualmente utilizados em estudos climáticos. Esse bom desempenho motiva o acoplamento do CPTEC PVM a modelos atmosféricos que utilizem o SiB (ou SSiB) como seu esquema de superficie. ABSTRACT: A simple potential vegetation model (i.e., a model which diagnoses the biome in equilibrium with a given climate) was developed. Given a set of environmental variables derived from climatologies of monthly mean surface temperature and precipitation -namely, growing degree-days, temperature ofthe coldest month and two moisture indices (one to distinguish between wet and dry climates and the other to represent soil moisture seasonality) -the model outputs a biome of the vegetation classification used in SiB (or SSiB) land surface scheme. A water balance model -which includes the possibility of soil water freezing and evaluates the actual evapotranspiration using the Penman-Monteith formulation -was developed to calculate the two moisture indices. The water balance model produces a consistent global distribution of soil moisture. The potential vegetation model, named CPTEC PVM, was able to represent the global biome pattems. On a regional levei in South America, the model was able to reproduce the Pampas grasslands and avoid the replacement of caatinga by savannas in Northeast Brazil. Objective analysis for each biome revealed a very good agreement for tropical forests and deserts; good agreement for conifer forests, savannas, semi-deserts and tundra; regular agreement for temperate forest, grasslands and caatinga vegetation; and poor agreement for mixed forest. In general, the model skill is comparable to other potential vegetation models currently in use for climate studies. The good skill showed by CPTEC PVM motivates its coupling to AGCM's that use SiB (or SSiB) as its land surface model to create a dynamic vegetation model. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > A simple potential... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://mtc-m16b.sid.inpe.br/ibi/x6e6X3pFwXQZ3DUS8rS5/DpyFj |
| zipped data URL | http://mtc-m16b.sid.inpe.br/zip/x6e6X3pFwXQZ3DUS8rS5/DpyFj |
| Language | en |
| Target File | DOCUMENT.PDF |
| User Group | Fabia administrator banon |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.42.59 1 |
| Dissemination | PORTALCAPES; SCIELO. |
| Host Collection | cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |