| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZ3r59YD9/Gk4MN |
| Repository | sid.inpe.br/iris@1915/2005/06.01.18.49 (restricted access) |
| Last Update | 2005:06.01.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/iris@1915/2005/06.01.18.49.03 |
| Metadata Last Update | 2018:06.05.03.52.14 (UTC) administrator |
| Secondary Key | INPE-9085-PRE/4761 |
| ISSN | 0899-8418 |
| Citation Key | SeluchiMare:2000:ClAsEx |
| Title | Tropical-midlatitude exchange of air masses during summer and winter in South America: Climatic aspects and examples of intense events  |
| Year | 2000 |
| Month | Aug. |
| Access Date | 2024, Apr. 27 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1707 KiB |
| 2. Context | |
| Author | 1 Seluchi, Marcelo Enrique 2 Marengo, Jose Antonio |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JHP2 |
| Group | 1 CPT-INPE-MCT-BR |
| Affiliation | 1 CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil |
| e-Mail Address | atus@cptec.inpe.br |
| Journal | International Journal of Climatology |
| Volume | 20 |
| Number | 10 |
| Pages | 1167-1190 |
| History (UTC) | 2005-06-01 18:51:13 :: fabia -> administrator :: 2008-06-10 19:47:43 :: administrator -> estagiario :: 2010-05-11 16:56:02 :: estagiario -> administrator :: 2018-06-05 03:52:14 :: administrator -> marciana :: 2000 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | estudo do tempo e do clima low-level-jet scale common features baiu frontal zone moisture transport precipitation incursions cloudiness evolution South Atlantic Convergence Zone SACZ |
| Abstract | Meridional transport of air masses between the tropics and midlatitudes in South America are the most intense in the entire Southern Hemisphere, mainly due to the presence of the Andes. The incursions of tropical air into midlatitudes occur on the eastern side of the Andes in two preferred regions. The first is located in the tropical latitudes, close to the mountains between 20 degrees and 30 degrees S, and the second is a function of the position of the South Atlantic Convergence Zone (SACZ). All year long, the two preferred regions maintain their behaviour, with only small variations of their position or relative importance in different seasons of the year. The variability of the meridional transport is larger on the eastern side of the Andes, due to the presence of the mountain barrier, which favours baroclinic activity and allows an active exchange of air masses in both senses, especially during winter. The importance of the air mass transport is evident in the precipitation and surface temperature fields. During summertime, the Chaco Low (25 degrees S and 65 degrees W)intensifies due to the positive net radiation, favouring the transport of tropical air masses towards the south and the presence of strong convective activity, which is fed by moisture from tropical regions. During winter, the penetration of tropical air towards higher latitudes is more sporadic. The displacement of midlatitude air towards tropical latitudes occurs on both sides of the Andes. On the western side, the air associated with the subtropical Pacific anticyclone flows northward channelled by the Andes. On the eastern side, incursions of polar air towards lower latitudes are linked to cold fronts whose trajectory and movement is also favoured by the presence of the Andes. In particular, during wintertime the cold fronts are more intense and faster, and sometimes even reach tropical and equatorial latitudes which produces freezes in subtropical regions, such as the coffee growing areas in southeastern Brazil. In contrast, the incursions of cold air are notably weaker and less frequent in summer, and during these events the active cold fronts move northwards merging with the SACZ, which becomes more intense. |
| Area | MET |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > Tropical-midlatitude exchange of... |
| 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 | Seluchi_Tropical-midlatitude exchange.pdf |
| User Group | administrator fabia |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3EUPEJL |
| Dissemination | WEBSCI; PORTALCAPES; MGA; COMPENDEX. |
| 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 secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |