| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | cptec.inpe.br/walmeida/2004/10.29.12.15 |
| Last Update | 2004:10.29.03.00.00 (UTC) administrator |
| Metadata Repository | cptec.inpe.br/walmeida/2004/10.29.12.15.43 |
| Metadata Last Update | 2022:03.26.18.03.17 (UTC) administrator |
| Secondary Key | INPE-11716-PRE/7075 |
| Citation Key | ObregonNobr:2004:HyVaOv |
| Title | Hydrologic variability over the Amazon basin and its ip with ENOS and NAO relationship  |
| Format | On-line |
| Year | 2004 |
| Access Date | 2024, May 18 |
| Secondary Type | PRE CI |
| Number of Files | 1 |
| Size | 420 KiB |
| 2. Context | |
| Author | 1 Obregon, Guilhermo O. 2 Nobre, Carlos Afonso |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGQ7 |
| Group | 1 DMA-INPE-MCT-BR 2 DMA-INPE-MCT-BR |
| Affiliation | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| e-Mail Address | fabia@cptec.inpe.br |
| Conference Name | International Clivar Science Conference, 1. |
| Conference Location | Baltimore |
| Date | 21-25 jun. |
| Tertiary Type | Posters |
| History (UTC) | 2004-12-06 13:04:35 :: fabia -> administrator :: 2008-06-10 21:23:32 :: administrator -> estagiario :: 2010-05-11 16:55:16 :: estagiario -> administrator :: 2022-03-26 18:03:17 :: 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 |
| Abstract | The availability of long-term streamflow records of the Amazon river at Manacapurú station, representative of the rainfall integrate over the western portion of the basin, is useful as a proxy for precipitation. Since this data provides a natural integration of the hidroclimatic variations, it will allow us a better understanding of the relationship between the hydrologic processes over Amazonia and the large-scale circulation, which drives the variability of the precipitation. Past studies found that the rainfall over Amazonia is strong related to ENSO phenomena (e. g. Marengo 1992), and it explains part of the interannual variance of the river discharge (Amarasekera et al. 1997) with significant coherency at the period of 2-3 year (Richlet et al. 1989). The rainfall (Nobre and Shukla 1996) and the hydrologic trends (Costa and Foley 1999) over Amazonia are also linked to the Tropical Atlantic SST. Besides it, there is a relationship between the Tropical North Atlantic SST and the North Atlantic Oscillation (NAO) at times scales of 8 - 20 year (Rajagopalan et al. 1998), and model evidence that there is some dependency between the NAO and the tropical Atlantic SST (Robertson et al. 2000) Thus, the goals of this work are twofold: first to reveal structures of a characteristic scale of monthly river discharge using wavelet transform. Secondly, search for relationship between the discharges and both the SOI and NAO through the cross wavelet analyses, because they depict part of the variability of the global climatic system and appear to be independent manifestations of climate variability (Giannini at al. 2001). The use of the wavelet transform analysis offers significant advantages over other techniques for analysis of streamflow records because periodic and non-periodic events are precisely located in time, permitting transient or time-dependent features to be detected, that may otherwise be obscure. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > Hydrologic variability over... |
| 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/cptec.inpe.br/walmeida/2004/10.29.12.15 |
| zipped data URL | http://mtc-m16b.sid.inpe.br/zip/cptec.inpe.br/walmeida/2004/10.29.12.15 |
| Language | en |
| Target File | 4Obregon.G.pdf |
| User Group | administrator fabia |
| Visibility | shown |
| Copy Holder | SID/SCD |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/bibdigital/2022/03.26.17.47 2 sid.inpe.br/mtc-m21/2012/07.13.14.42.59 1 |
| Host Collection | cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist booktitle callnumber copyright creatorhistory descriptionlevel dissemination documentstage doi edition editor electronicmailaddress identifier isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |