| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnJUY/Mo4cU |
| Repository | sid.inpe.br/mtc-m15@80/2006/09.06.13.23 |
| Last Update | 2006:09.06.13.23.56 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m15@80/2006/09.06.13.23.58 |
| Metadata Last Update | 2021:02.10.19.21.40 (UTC) administrator |
| Secondary Key | INPE-14162-PRE/9295 |
| ISSN | 0004-9743 |
| Citation Key | SeluchiSaul:1998:ExUsLi |
| Title | Possible mechanisms yielding and explosive coastal cyclogenesis over South America: experiments using a limited area model  |
| Year | 1998 |
| Secondary Date | 20060906 |
| Month | Dec. |
| Access Date | 2024, May 18 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1509 KiB |
| 2. Context | |
| Author | 1 Seluchi, Marcelo Enrique 2 Saulo, A. Celeste |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JHP2 |
| Group | 1 DOP-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE), Centro de Previsã 2 o de Tempo e Estudos Climáticos (CPTEC) |
| e-Mail Address | atus@cptec.inpe.br |
| Journal | Australian Meteorological Magazine |
| Volume | 47 |
| Number | 04 |
| Pages | 309-320 |
| History (UTC) | 2006-09-20 13:57:03 :: estagiario -> administrator :: 2006-11-17 23:19:24 :: administrator -> estagiario :: 2008-04-25 18:46:14 :: estagiario -> administrator :: 2008-06-10 19:47:47 :: administrator -> estagiario :: 2010-05-11 16:56:29 :: estagiario -> administrator :: 2021-02-10 19:21:40 :: administrator -> marciana :: 1998 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | coastal cyclogenesis topography condensation evaporation troposphere thermal-orographic |
| Abstract | The LAHM/GFDL-CIMA model, has been used to simulate an explosive cyclogenesis which produced a strong southeast gale over the Riìo de la Plata (a phenomenon locally known as 'sudestada'). The main purpose of this work is to analyse the physical processes related to this development, after having verified the model's ability to reproduce the situation. Through different experiments, the model's potential to represent the event is demonstrated, while two other experiments have been designed in order to analyse the impact of topography and of condensation/evaporation processes during the cyclogenesis. Latent heat release resulting from precipitation processes is proposed as the main mechanism acting to intensify the system. The major air mass instability over the southeastern South American region was triggered by the entrance of a rather weak upper-level trough, and later reinforced by diabatic processes. By running the experiment without topography it was shown that, though the Andes did not cause the cyclonic development, they may have had a significant role during the early stages of the system's evolution. The processes undergone by this system might be summarised as follows: as the cyclonic disturbance approaches the Andes, it is blocked at lower levels, but continues propagating in the middle and upper troposphere, becoming more vertical and barotropic. As a consequence, increased westerly winds lead to a reduction in static stability leeward of the Andes which contributes to the strengthening of a thermal-orographic low pressure system and favours a sustained warm and moist advection over the region. Finally, once the depression traverses the mountains and recovers its tilt, classical baroclinic development starts, dramatically strengthened by latent heat release. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDOP > Possible mechanisms yielding... |
| 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/6qtX3pFwXQZGivnJUY/Mo4cU |
| zipped data URL | http://mtc-m16b.sid.inpe.br/zip/6qtX3pFwXQZGivnJUY/Mo4cU |
| Language | en |
| Target File | Seluchi.possible.pdf |
| User Group | administrator estagiario |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | allowpublisher allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/43SQKNE |
| Citing Item List | sid.inpe.br/bibdigital/2021/01.02.22.14 4 sid.inpe.br/mtc-m21/2012/07.13.14.54.36 1 |
| Dissemination | WEBSCI |
| 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 secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |