| 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/2005/10.24.20.59 | |||
| Last Update | 2006:04.16.19.21.48 (UTC) administrator | |||
| Metadata Repository | cptec.inpe.br/adm_conf/2005/10.24.20.59.25 | |||
| Metadata Last Update | 2018:06.05.03.42.44 (UTC) administrator | |||
| Citation Key | Nogués-PaegleBerbCollSaul:2006:EvETMo | |||
| Title | An evaluation of the ETA model during SALLJEX  | |||
| Format | CD-ROM, On-line. | |||
| Year | 2006 | |||
| Access Date | 2024, Dec. 26 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 351 KiB | |||
| 2. Context | ||||
| Author | 1 Nogués-Paegle, Julia 2 Berbery, Ernesto Hugo 3 Collini, Estela A. 4 Saulo, A. Celeste | |||
| Affiliation | 1 (1) University of Utah 2 (2) University of Maryland 3 (3) SMARA/SIHN 4 (4) University of Buenos Aires | |||
| Author e-Mail Address | 1 (1) jnpaegle@met.utah.edu 2 (2) berbery@umd.edu 3 (3) collini@atmos.umd.edu 4 (4) saulo@cima.fcen.uba.ar | |||
| Editor | Vera, Carolina Nobre, Carlos | |||
| e-Mail Address | jnpaegle@met.utah.edu | |||
| 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 | 51-56 | |||
| Book Title | Proceedings | |||
| Tertiary Type | Oral | |||
| Organization | American Meteorological Society (AMS) | |||
| History (UTC) | 2005-10-24 20:59:25 :: jnpaegle@met.utah.edu -> adm_conf :: 2005-12-15 23:32:45 :: adm_conf -> jnpaegle@met.utah.edu :: 2006-03-14 14:26:41 :: jnpaegle@met.utah.edu -> administrator :: 2006-04-18 20:56:40 :: administrator -> lise@dpi.inpe.br :: 2010-12-28 12:36:23 :: lise@dpi.inpe.br -> administrator :: 2010-12-29 15:55:43 :: administrator -> lise@dpi.inpe.br :: 2006 2010-12-29 16:05:44 :: lise@dpi.inpe.br -> administrator :: 2006 2010-12-29 18:51:34 :: administrator -> banon :: 2006 2011-01-02 17:14:43 :: banon -> administrator :: 2006 2018-06-05 03:42:44 :: administrator -> :: 2006 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Keywords | Low-level jet field experiments | |||
| Abstract | The South American Low Level Jet Experiment took place during austral summer 2002-2003 and provided unique data sets to evaluate the veracity of models to represent atmospheric motions in the vicinity of the central Andes. The experiment focused on the wind maximum east of the Andes (SALLJ, South American Low Level Jet) and its role to transport moisture that feeds meso-scale convective systems over the La Plata basin. Such systems, as well as the SALLJ, exhibited a pronounced diurnal oscillation during SALLJEX, with maximum values at night. Special radiosonde observations were collected during this experiment at 06 and 18Z, when the diurnal cycle displays maximum amplitude. Such observations were not incorporated in the operational analyses and thus provide a unique data set to test the ability of models to reproduce the amplitude of diurnal oscillations in this region. In particular, the ETA model is yet lacking a comprehensive evaluation of its biases in this region of highly variable and steep orography. At the University of Maryland, Collini and Berbery integrated and archived model ETA model runs at 80 and 22km resolution, eight times a day, over two regions of different extent, in real time. These runs, when compared against radiosonde measurements of winds, moisture and temperature profiles, allow to identify model biases related to resolution, boundary conditions, and model description of the diurnal cycle. The presentation explores the ability of the model to regionally downscale large scale features and its potential use for regional climate assessments based on its performance over this particular season of enhanced observations. Preliminary results indicate that benefits of the higher resolution to describe the three-dimensional structure of the SALLJ are only apparent close to the Andes, with runs at both resolutions underestimating the amplitude of the diurnal cycle at low levels. Furthermore, the ETA runs are compared to identify dependence of representation of the diurnal cycle on resolution. | |||
| Area | MET | |||
| Type | Addressing gaps in SH observing systems | |||
| doc Directory Content | access | |||
| source Directory Content |
| |||
| agreement Directory Content | there are no files | |||
| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/cptec.inpe.br/adm_conf/2005/10.24.20.59 | |||
| zipped data URL | http://urlib.net/zip/cptec.inpe.br/adm_conf/2005/10.24.20.59 | |||
| Language | en | |||
| Target File | 51-56.pdf | |||
| User Group | jnpaegle@met.utah.edu 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 | |||