| 1. Identity statement | |
| Reference Type | ePrint (Electronic Source) |
| Site | mtc-m16c.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | sid.inpe.br/ePrint@80/2005/05.11.13.21 |
| Last Update | 2005:05.11.13.21.13 (UTC) administrator |
| Metadata Repository | sid.inpe.br/ePrint@80/2005/05.11.13.21.07 |
| Metadata Last Update | 2021:02.10.19.23.57 (UTC) administrator |
| Citation Key | MarengoAlve::TeHiBa |
| Title | Tendencias Hidrologicas da Bacia do Rio Paraiba do Sul  |
| Secondary Date | 20050511 |
| Last Update Date | 2005-05-12 |
| Access Date | 2024, Apr. 18 |
| Type of Medium | On-line |
| Number of Files | 1 |
| Size | 378 KiB |
| 2. Context | |
| Author | 1 Marengo, Jose Antonio 2 Alves, Lincoln Muniz |
| Group | 1 DMD 2 DOP |
| Affiliation | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| e-Mail Address | atus@cptec.inpe.br |
| Producer | Instituto Nacional de Pesquisas Espaciais |
| City | São José dos Campos |
| History (UTC) | 2008-04-26 01:39:59 :: fabia -> administrator :: 2021-02-10 19:23:57 :: administrator -> marciana :: |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | work-in-progress |
| Transferable | 1 |
| Keywords | hidrologia Rio Paraiba do Sul |
| Abstract | This study is directed to na analysis of the negative river streamflow tendencies detected in the Paraíba do Sul River series since the 1920s. This basin covers one of the most developed and industrialized regions of Brazil in the states of São Paulo, Minas Gerais and Rio de Janeiro, and is responsible for almost 10% of the Gross National Product, and it has a primary role in the National Water resources Policy. The waters of the Paraiba do Sul River supply the demands of almost 15 million people in mostly large cities; depend primarily from this water supply. Any reduction in the volume of its waters may have large social and economical impacts, and currently the thinking on many of the city governments across the valley is that the rains are decreasing systematically. A detailed statistical analysis applied to the river streamflow and rainfall series in several stations in the valley detect the negative streamflow tendencies. However, there are no signs of any significant rainfall reduction in the valley, and in fact, some stations show small rainfall increases in time during the recent decades. Am autocorrelation analysis performed on the river streamflow series show a large autocorrelation in consecutive years, suggesting than regulation in the operation of reservoirs for water use (hydroelectric generation, irrigation, human consumption) are responsible for the negative streamflow tendencies, rather than a climate change in the form of changes in the rainfall regime in the basin. Resumo: Este trabalho tem a intenção de analisar as tendências negativas sistemáticas detectadas em la series históricas de vazões e cotas do Rio Paraíba do Sul desde 1920. Esta bacia abrange uma das mais desenvolvidas áreas industriais do País em São Paulo, Minas Gerias e Rio de Janeiro, arrecada cerca de 10% do PIB nacional e já assume um papel de destaque na implementação da Política Nacional de Recursos Hídricos. As águas do Rio Paraíba do Sul abastecem em torno de 15 milhões de pessoas, maiormente em regiões metropolitanas que dependem primordialmente de suas águas. Uma queda sistemática nas vazões pode ter graves conseqüências sociais e econômicas, e uma das causas apontadas pelos governos locais é uma possível queda no volume de chuvas. Uma analise estatística sistemática em series pluviométricas e fluviometricas detecta de fato as tendências negativas nas vazões, mais não detectam quedas sistemáticas nas chuvas na bacia, e ate em alguns pontos a chuva tem aumentado nas ultimas décadas. Uma analise de correlação serial de estas series hidrológicas mostram uma alta correlação entre vazões de em vários anos consecutivos, sugerindo que a regulação de uso da água para abastecimento, geração de energia, e desvio de rios para usos na agricultura podem ser os responsáveis pelas quedas sistemáticas nas vazões, e não uma mudança climática do regime de chuva na bacia. |
| Area | MET |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > Tendencias Hidrologicas da... |
| Arrangement 2 | urlib.net > DIDOP > Tendencias Hidrologicas da... |
| 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://urlib.net/ibi/sid.inpe.br/ePrint@80/2005/05.11.13.21 |
| zipped data URL | http://urlib.net/zip/sid.inpe.br/ePrint@80/2005/05.11.13.21 |
| Language | Portuguese |
| Target File | v1.pdf |
| User Group | administrator fabia administrator |
| Visibility | shown |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/43SKC35 8JMKD3MGPCW/43SQKNE |
| Citing Item List | dpi.inpe.br/banon/2004/02.16.09.30.00 1 |
| Host Collection | sid.inpe.br/mtc-m18@80/2008/03.17.15.17 |
| 6. Notes | |
| Notes | Revista Brasileira de Meteorologia |
| Empty Fields | accessyear alternatepublication archivingpolicy archivist contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition electronicmailaddress format identifier isbn issn label lineage mark mirrorrepository nextedition orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarykey secondarymark secondarytype session shorttitle sponsor stageofalternatepublication subject tertiarymark tertiarytype url versiontype year |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |