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1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitemtc-m16b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Repositorycptec.inpe.br/adm_conf/2005/10.31.18.05
Last Update2006:04.15.23.34.40 (UTC) administrator
Metadata Repositorycptec.inpe.br/adm_conf/2005/10.31.18.05.05
Metadata Last Update2021:02.10.19.01.57 (UTC) administrator
Secondary KeyINPE-14532-PRE/9563
Citation KeySilvaSaty:2006:RoUpTr
TitleThe role of the upper tropospheric cyclonic systems in the Northeast of Brazil rain inhibition
FormatCD-ROM; On-line.
Year2006
Access Date2024, May 20
Secondary TypePRE CI
Number of Files1
Size299 KiB
2. Context
Author1 Silva, Lígia Alves
2 Satyamurty, Prakki
Resume Identifier1
2 8JMKD3MGP5W/3C9JJ4J
Group1 DMD-INPE-MCT-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 ligia@cptec.inpe.br
EditorVera, Carolina
Nobre, Carlos
e-Mail Addressligia@cptec.inpe.br
Conference NameInternational Conference on Southern Hemisphere Meteorology and Oceanography, 8 (ICSHMO).
Conference LocationFoz do Iguaçu
Date24-28 Apr. 2006
PublisherAmerican Meteorological Society (AMS)
Publisher City45 Beacon Hill Road, Boston, MA, USA
Pages2027-2031
Book TitleProceedings
Tertiary TypePoster
OrganizationAmerican Meteorological Society (AMS)
History (UTC)2005-10-31 18:05:05 :: ligia@cptec.inpe.br -> administrator ::
2005-11-11 21:53:56 :: administrator -> adm_conf ::
2005-12-15 23:56:24 :: adm_conf -> administrator ::
2005-12-22 16:53:18 :: administrator -> ligia@cptec.inpe.br ::
2006-03-22 18:38:39 :: ligia@cptec.inpe.br -> administrator ::
2006-04-18 21:09:41 :: administrator -> lise@dpi.inpe.br ::
2010-12-28 12:36:38 :: lise@dpi.inpe.br -> administrator ::
2010-12-29 15:57:43 :: administrator -> lise@dpi.inpe.br :: 2006
2010-12-29 16:06:01 :: lise@dpi.inpe.br -> administrator :: 2006
2010-12-29 18:53:29 :: administrator -> banon :: 2006
2011-01-02 17:15:01 :: banon -> administrator :: 2006
2021-02-10 19:01:57 :: administrator -> :: 2006
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Keywordsvorticity
upper tropospheric
cyclonic vortex
precipitation
AbstractFor long time it has been assumed that the spatial and temporal variability of the rain regime in the northeast of Brazil (NEB) is associated to the occurrence of the upper level cyclonic vortices (ULCVs). However, it was not possible yet to establish a quantitative association between the rain regime and the parameters of the ULCVs. In this paper we investigate the role of the upper tropospheric cyclonic systems in the northeast of Brazil rain inhibition. We considered both upper level cyclonic vortices, which are closed cyclonic systems, and trough of upper levels (TUL), which are opened cyclonic systems. These upper tropospheric cyclonic systems are large-scale low-pressure systems with a colder center formed in the high troposphere and frequently occur during the austral summer. They present cloudiness in the periphery and absence of cloudiness in the center. In order to identify the occurrence of upper tropospheric cyclonic systems, we used reanalysis daily averaged zonal (u) and meridional (v) components of the wind at the 200 hPa level from NCEP-NCAR (National Centers for Environmental PredictionNational Centers for Atmosphere Research), and infra-red images from METEOSAT-3, METEOSAT-5 and GOE-8 satellites. We used daily precipitation data from the Brazilian National Agency of the Waters (Agência Nacional das Águas - ANA). We evaluated the precipitation inhibition in three distinct sub-regions of the NEB (the northwest of the NEB, center of the Bahia State and the semiarid region) for the period of austral summer of 1994-2001 (849 days). In order to identify the presence of a cyclonic system over a sub-region, we defined the border of the cyclonic system in ζ=-2,5 x 10-5 s-1. The intensity of the system was defined as the maximum cyclonic vorticity in this area. The daily precipitation of each region was grouped into three classes, weak, moderate and intense, according to the distribution of precipitation in the region. The statistical analysis of the precipitation in the studied regions shows a clear reduction in the occurrence of intense and moderate precipitation events during the periods in which it was observed the occurrence of upper cyclonic systems over the regions.
AreaMET
TypeWeather analysis and forecasting
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > The role of...
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source Directory Content
inibição_estendido.doc 22/03/2006 15:38 250.0 KiB 
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4. Conditions of access and use
data URLhttp://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.31.18.05
zipped data URLhttp://urlib.net/zip/cptec.inpe.br/adm_conf/2005/10.31.18.05
Languageen
Target File2027-2032.pdf
User Groupadministrator
ligia@cptec.inpe.br
administrator
banon
Visibilityshown
Copy HolderSID/SCD
Read Permissionallow from all
5. Allied materials
Next Higher Units8JMKD3MGPCW/43SKC35
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.58.28 2
Host Collectioncptec.inpe.br/nobre/2005/06.02.21.14
cptec.inpe.br/walmeida/2003/04.25.17.12
6. Notes
Mark1
Empty Fieldsarchivingpolicy archivist callnumber contenttype copyright creatorhistory descriptionlevel dissemination documentstage doi edition identifier isbn issn label lineage mirrorrepository nextedition notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark url versiontype volume


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