| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m16b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Repository | cptec.inpe.br/adm_conf/2005/10.27.20.34 | |||
| Last Update | 2006:04.16.18.49.06 (UTC) administrator | |||
| Metadata Repository | cptec.inpe.br/adm_conf/2005/10.27.20.34.39 | |||
| Metadata Last Update | 2018:06.05.03.42.47 (UTC) administrator | |||
| Citation Key | GarreaudAceiRamo:2006:InVaRa | |||
| Title | Intraseasonal variability of the rainfall in southwestern South America  | |||
| Format | CD-ROM, On-line. | |||
| Year | 2006 | |||
| Access Date | 2024, Dec. 26 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 526 KiB | |||
| 2. Context | ||||
| Author | 1 Garreaud, René 2 Aceituno, Patricio 3 Ramos, Isabel | |||
| Affiliation | 1 Departamento de Geofísica 2 Universidad de Chile | |||
| Author e-Mail Address | 1 rgarreau@dgf.uchile.cl | |||
| Editor | Vera, Carolina Nobre, Carlos | |||
| e-Mail Address | rgarreau@dgf.uchile.cl | |||
| Conference Name | International Conference on Southern Hemisphere Meteorology and Oceanography, 8 (ICSHMO). | |||
| Conference Location | Foz do Iguaçu | |||
| Date | 24-28 Apr. 2006 | |||
| Publisher | American Meteorological Society (AMS) | |||
| Publisher City | 45 Beacon Hill Road, Boston, MA, USA | |||
| Pages | 1773-1776 | |||
| Book Title | Proceedings | |||
| Tertiary Type | Oral | |||
| Organization | American Meteorological Society (AMS) | |||
| History (UTC) | 2005-10-27 20:34:39 :: rgarreau@dgf.uchile.cl -> administrator :: 2005-11-11 21:53:32 :: administrator -> adm_conf :: 2005-12-16 00:06:53 :: adm_conf -> rgarreau@dgf.uchile.cl :: 2006-03-29 15:54:05 :: rgarreau@dgf.uchile.cl -> administrator :: 2006-04-18 20:58:48 :: administrator -> lise@dpi.inpe.br :: 2010-12-28 12:36:25 :: lise@dpi.inpe.br -> administrator :: 2010-12-29 15:56:08 :: administrator -> lise@dpi.inpe.br :: 2006 2010-12-29 16:05:47 :: lise@dpi.inpe.br -> administrator :: 2006 2010-12-29 18:51:57 :: administrator -> banon :: 2006 2011-01-02 17:14:46 :: banon -> administrator :: 2006 2018-06-05 03:42:47 :: administrator -> :: 2006 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Keywords | intrasesonal variability rainfall storm track southwestern South America | |||
| Abstract | South-central Chile (35ºS 45ºS), located along the west coast of southern South America, is year round in the path of mid-latitude disturbances moving from the South Pacific, producing a relatively flat annual cycle in rainfall with a weak peak during austral winter. Frontal rainfall is enhanced as the moist-laden air masses are uplifted over the Andes cordillera (1000-2000 m high in this range of latitude) producing mean annual precipitation between 800 and 1800 mm. While rainfall variability in south-central Chile is dominated by synoptic-scale fluctuations (3-14 days), longer period variations are clearly present and highly relevant. In this work, we focus on intraseasonal variability (IS, 20-60 days). A typical feature of the IS is the occurrence of several weeks characterized by normal synoptic activity, with alternance of dry and rainy days, interrupted by similarly extended periods of dry conditions. We show that IS rainfall variability in this region results from IS variability in the position and/or intensity of the storm track over the southeast Pacific. The storm track was characterized using transient fields of several variables (e.g., meridional heat flux) obtained from reanalysis data. The changes in the storm track / storm activity were in turn associated with slow changes in the large-scale zonal circulation, as the later controls the Eady growth rate. At least two phenomena seem to modulate the mean circulation in the Pacific in the frequency range of interest: (a) the tropical Madden-Julian Oscillation and its associated teleconextions, and (b) the high-latitude Southern Hemisphere (SH) annular mode (or Antarctic oscillation). The implication of this association between mean flow and transient eddies on synoptic predictability is also discussed. | |||
| Area | MET | |||
| Type | Weather analysis and forecasting | |||
| doc Directory Content | access | |||
| source Directory Content |
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| agreement Directory Content | there are no files | |||
| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.27.20.34 | |||
| zipped data URL | http://urlib.net/zip/cptec.inpe.br/adm_conf/2005/10.27.20.34 | |||
| Language | en | |||
| Target File | 1773-1776.pdf | |||
| User Group | rgarreau@dgf.uchile.cl administrator | |||
| Visibility | shown | |||
| 5. Allied materials | ||||
| Host Collection | cptec.inpe.br/nobre/2005/06.02.21.14 cptec.inpe.br/walmeida/2003/04.25.17.12 | |||
| 6. Notes | ||||
| Mark | 1 | |||
| Empty Fields | archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi edition group identifier isbn issn label lineage mirrorrepository nextedition nexthigherunit notes numberofvolumes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark url versiontype volume | |||