| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16c.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZQjxQKY/ScT9n |
| Repository | sid.inpe.br/ePrint@80/2007/11.19.18.53 (restricted access) |
| Last Update | 2007:11.19.17.53.23 (UTC) administrator |
| Metadata Repository | sid.inpe.br/ePrint@80/2007/11.19.18.53.26 |
| Metadata Last Update | 2021:02.10.19.21.15 (UTC) administrator |
| Secondary Key | INPE-14960-PRE/9872 |
| ISSN | 0177-7971 |
| Citation Key | PrakkiSelu:2007:ChStUp |
| Title | Characteristics and structure of an upper air cold vortex in the subtropics of South America  |
| Year | 2007 |
| Secondary Date | 200706 |
| Month | Jun. |
| Access Date | 2024, Apr. 27 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 2275 KiB |
| 2. Context | |
| Author | 1 Prakki, Satyamurty 2 Seluchi, Marcelo Enrique |
| Group | 1 DMD-INPE-MCT-BR 2 DOP-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais,(INPE/CPTEC) 2 Instituto Nacional de Pesquisas Espaciais,(INPE/CPTEC) |
| e-Mail Address | deicy@cptec.inpe.br |
| Journal | Meteorology and Atmospheric Physics |
| Volume | 96 |
| Number | 3-4 |
| Pages | 203-220 |
| Progress | ePrint update |
| History (UTC) | 2011-04-28 19:09:41 :: deicy@cptec.inpe.br -> administrator :: 2021-02-10 19:21:15 :: administrator -> deicy@cptec.inpe.br :: 2007 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | South America potential vorticity |
| Abstract | The horizontal and vertical structures of an upper air cold core vortex over the subtropical latitudes of South America in the winter of 1999 reveal many features that are different from tropical upper tropospheric cold core vortices. The vortex in the present study is observed poleward of the subtropical jetstreak. In the middle troposphere, the center of the vortex is cooler than the periphery by 6 degrees C. The relative vorticity is greatest just below the tropopause and the vortex presents a slight eastward tilt in the vertical. The CPTEC Eta regional model simulation dataset has been used to study the life cycle of the vortex. Intensification and movement of the system are well simulated by the combined effect of divergence and vorticity advection at 500hPa. The Lifted Index and CAPE values at the mature stage of the system are not sufficiently high to explain the precipitation associated with the vortex. However, Q-vector analysis of the model simulation datasets support the observed precipitation. The precipitation pattern closely follows the 700hPa vertical velocity. These results indicate that the rain associated with the vortex has been forced by dynamical lifting rather than by thermodynamic processes. Upper tropospheric stable conditions are responsible for the shallowness of convection. The vortex presented here is different from subtropical cyclones, which develop over oceans and have higher intensities. The present vortex development somewhat resembles lee development. |
| Area | MET |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > Characteristics and structure... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDOP > Characteristics and structure... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | prakki.pdf |
| User Group | administrator deicy@cptec.inpe.br |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft12 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Previous Edition | sid.inpe.br/ePrint@80/2006/08.04.11.44 |
| Next Higher Units | 8JMKD3MGPCW/43SKC35 8JMKD3MGPCW/43SQKNE |
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX. |
| Host Collection | sid.inpe.br/mtc-m18@80/2008/03.17.15.17 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previouslowerunit project readergroup resumeid rightsholder schedulinginformation secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | deicy@cptec.inpe.br |
| update | |