| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3QG5AU2 | |||
| Repository | sid.inpe.br/mtc-m21b/2018/02.05.13.30 | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2018/02.05.13.30.55 | |||
| Metadata Last Update | 2019:01.14.17.05.23 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | EidtCava:2018:RaVaOv | |||
| Title | Rainfall variability over South America associated with SST anomalies in South Pacific and South Atlantic oceans  | |||
| Year | 2018 | |||
| Access Date | 2024, May 15 | |||
| Secondary Type | PRE CI | |||
| 2. Context | ||||
| Author | 1 Eidt, Renata Tatsch 2 Cavalcanti, Iracema Fonseca de Albuquerque | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHDE | |||
| Group | 1 MET-MET-SESPG-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 renata.eidt@gmail.com | |||
| Conference Name | International Conference for Southern Hemisphere Meteorology and Oceanography, 12 (AMOS-ICSHMO) | |||
| Conference Location | Sydney, Australias | |||
| Date | 05-09 feb. | |||
| Tertiary Type | Poster | |||
| History (UTC) | 2018-02-05 13:30:55 :: simone -> administrator :: 2019-01-14 17:05:23 :: administrator -> simone :: 2018 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Sea surface temperature (SST) anomalies influence atmospheric circulation and contribute to changes in weather and climate around the globe. It is already known that precipitation over continental areas can be associated with SST variability in the tropics. However, the importance of extratropical oceans is still not completely understood. The aim of this study is to investigate the influence of extratropical SST anomalies to rainfall variability, focusing on South America, and the oceanic and atmospheric processes involved. The period from 1981 to 2010 was studied in a monthly scale, using SST and precipitation data obtained from NOAA datasets (ERSST-v5 and GPCP, respectively), and atmospheric data from CFSR reanalysis. Singular Value Decomposition (SVD) showed connectivity between SST variations in extratropical oceans and rainfall variability over southeastern South America, an important agricultural area. Extreme wet and dry events over this region were identified using the Standardized Precipitation Index (SPI), to a further evaluation of the oceanic conditions associated with these episodes. Empirical Orthogonal Functions (EOF) and SVD were applied for the identification of principal modes of variability. Dipoles of SST were identified in South Pacific and South Atlantic oceans. Two areas of opposite signs were observed in western (~25°S) and southern (~55°S) South Pacific Ocean, regions of atmospheric blocking and the South Pacific Convergence Zone (SPCZ). Positive SST anomalies in the southern area are related to precipitation increase over southeastern South America. The southern oceanic area is also associated with a dipole of precipitation over Southeast Asia and central Pacific Ocean. A dipole signal was also noticed in western South Atlantic Ocean, mainly from September to December, varying in position and intensity near South America. The results obtained showed that extratropical oceans have an important role for precipitation variability in remote regions, and the oceanic areas identified can contribute to climate monitoring. | |||
| Area | MET | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Rainfall variability over... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | simone | |||
| Visibility | shown | |||
| Read Permission | allow from all | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3F35TRS | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||