| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | x6e6X3pFwXQZ3DUS8rS5/E8zEV |
| Repository | cptec.inpe.br/walmeida/2004/11.11.10.16 |
| Last Update | 2010:02.05.12.26.52 (UTC) administrator |
| Metadata Repository | cptec.inpe.br/walmeida/2004/11.11.10.16.05 |
| Metadata Last Update | 2022:03.26.18.00.24 (UTC) administrator |
| Secondary Key | INPE-11696-PRE/7055 |
| ISSN | 0027-0644 |
| Citation Key | GanVadl:1994:InAnCo |
| Title | The influence of the Andes Cordillera on transient disturbances  |
| Project | Climatologia dinâmica |
| Year | 1994 |
| Month | jun. |
| Access Date | 2024, May 20 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1100 KiB |
| 2. Context | |
| Author | 1 Gan, Manoel Alonso 2 Vadlamudi, Brahmananda Rao |
| Resume Identifier | 1 8JMKD3MGP5W/3C9JHNM |
| Group | 1 DMA-INPE-MCT-BR 2 DMD-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
| e-Mail Address | fabia@cptec.inpe.br |
| Journal | Monthly Weather Review |
| Volume | 122 |
| Number | 6 |
| Pages | 1141-1157 |
| History (UTC) | 2004-12-06 12:06:42 :: fabia -> administrator :: 2008-06-10 19:47:10 :: administrator -> estagiario :: 2010-05-11 16:55:20 :: estagiario -> administrator :: 2022-03-26 18:00:24 :: administrator -> marciana :: 1994 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | Southern-Hemisphere summer alpine lee cyclogenesis scale wave dynamics baroclinic instability topography energetcs montains alps flow |
| Abstract | The influence of the Andes Cordillera on transient disturbances is investigated in this study using a lag-correlation analysis. This analysis shows that the unfiltered geopotential height data have a wavelike pattern moving to the east while tilting to the west in the vertical. When the wave approaches the Andes Cordillera, it exhibits orographic effects such as anticyclonic turning of a low-level disturbance trajectory, a zonal trajectory in the upper levels, distortions of the isolines of correlation, and an elongation of maximum correlation on the lee side of the Andes. The anticyclonic turning of the trajectory in the low-altitude levels and a zonal trajectory in upper levels implies a decrease in the vertical tilt of the system on the windward side and an increase in the tilt on the lee side. The increase of baroclinicity on the lee side results in baroclinic development as predicted from a linearly obtained normal-mode solution in the presence of mountains. A cross-correlation analysis of the high-pass-filtered disturbances shows an eastward phase propagation and a westward vertical tilt with height on the order of one-quarter wavelength between 1000- and 300-hPa levels. The horizontal structure and phase propagation show characteristics similar to the fastest-growing baroclinic normal mode in a two-layer, quasigeostrophic, beta-plane, linear model with a mountain placed in the north-south direction. This shows that the high-pass-filtered anomalies over the South American region are associated with baroclinic disturbances influenced by the Andes Cordillera. The results further show that the interaction of these anomalies with the Andes Cordillera is responsible for lee cyclogenesis. The composite maps show that the positive and negative high-pass-filtered anomalies have the same structure and paths of phase propagation. These anomalies intensify over the Pacific Ocean near the South American continent. |
| Area | MET |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDMD > The influence of... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção até 2016 > DMA > The influence 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 | |
| data URL | http://urlib.net/ibi/x6e6X3pFwXQZ3DUS8rS5/E8zEV |
| zipped data URL | http://urlib.net/zip/x6e6X3pFwXQZ3DUS8rS5/E8zEV |
| Language | en |
| Target File | gan and rao.pdf |
| User Group | administrator estagiario fabia |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher6 allowfinaldraft |
| Read Permission | allow from all |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/43SKC35 8JMKD3MGPCW/46JKC45 |
| Citing Item List | sid.inpe.br/bibdigital/2021/01.01.17.20 2 sid.inpe.br/bibdigital/2022/03.26.17.47 1 sid.inpe.br/mtc-m21/2012/07.13.14.54.28 1 |
| Dissemination | WEBSCI; PORTALCAPES; MGA. |
| 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 readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |