Artículo

Vera, C.; Baez, J.; Douglas, M.; Emmanuel, C.B.; Marengo, J.; Meitin, J.; Nicolini, M.; Nogues-Paegle, J.; Paegle, J.; Penalba, O.; Salio, P.; Saulo, C.; Silva Dias, M.A.; Silva Dias, P.; Zipser, E. "The South American low-level jet experiment" (2006) Bulletin of the American Meteorological Society. 87(1):63-77
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Abstract:

Moisture is transported in South America westward from the tropical Atlantic Ocean to the Amazon basin, and then southward toward the extratropics. A regional intensification of this circulation to the east of the Andes Mountains is called the South American low-level jet (SALLJ), with the strongest winds found over eastern Bolivia. SALLJ is present all year and channels moisture to the La Plata basin, which is analogous to the better-known Amazon basin in terms of its biological and habitat diversity, and far exceeds the latter in its economic importance to southern and central South America in terms of hydroelectricity and food production. The relatively small SALLJ spatial scale (compared with the density of the available sounding network) has a limited understanding of and modeling capability for any variations in the SALLJ intensity and structure as well as its possible relationship to downstream rainfall. The SALLJ Experiment (SALLJEX), aimed at describing many aspects of SALLJ, was carried out between 15 November 2002 and 15 February 2003 in Bolivia, Paraguay, central and northern Argentina, western Brazil, and Peru. Scientists, collaborators, students, National Meteorological Service personnel, and local volunteers from South American countries and the United States participated in SALLJEX activities in an unprecedented way, because SALLJEX was the most extensive meteorological field activity to date in subtropical South America, and was the first World Climate Research Program/Climate Variability and Prediction Program international campaign in South America. This paper describes the motivation for the field activity in the region, the special SALLJEX observations, and SALLJEX modeling and outreach activities. We also describe some preliminary scientific conclusions and discuss some of the remaining questions. ©2006 American Meteorological Society.

Registro:

Documento: Artículo
Título:The South American low-level jet experiment
Autor:Vera, C.; Baez, J.; Douglas, M.; Emmanuel, C.B.; Marengo, J.; Meitin, J.; Nicolini, M.; Nogues-Paegle, J.; Paegle, J.; Penalba, O.; Salio, P.; Saulo, C.; Silva Dias, M.A.; Silva Dias, P.; Zipser, E.
Filiación:Centro de Investigaciones del Mar y la Atmósfera (CIMA), CONICET Departamento de Cs. De la Atmósfera y los Océanos, Universidad de Buenos Aires, Pab. 2, 2do Piso, 1428 Buenos Aires, Argentina
Dirección de Meteorología e Hidrología, DINAC, Asunción, Paraguay
NOAA, NSSL, Norman, OK, United States
UCAR, JOSS, Boulder, CO, United States
INPE, CPTEC, Cachoeíra Paulista, Brazil
University of Utah, Salt Lake City, UT, United States
Departamento de Cs. De la Atmósfera y los Océanos, Universidad de Buenos Aires, Buenos Aires, Argentina
University of Sao Paulo, Sao Paulo, Brazil
Palabras clave:Atmospheric movements; Boundary conditions; Climate change; Computer simulation; Flow patterns; Jets; Moisture; Natural convection; Precipitation (meteorology); Atmospheric profiling; Rain gauge; Weather station; Climatology
Año:2006
Volumen:87
Número:1
Página de inicio:63
Página de fin:77
DOI: http://dx.doi.org/10.1175/BAMS-87-1-63
Título revista:Bulletin of the American Meteorological Society
Título revista abreviado:Bull. Am. Meteorol. Soc.
ISSN:00030007
CODEN:BAMIA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00030007_v87_n1_p63_Vera

Referencias:

  • Berbery, E.H., Collini, E., Springtime precipitation and water vapor flux convergence over Southeastern South America (2000) Mon. Wea. Rev., 128, pp. 1328-1346
  • Bonner, W.D., Climatology of the low level jet (1968) Mon. Wea. Rev., 96, pp. 833-850
  • Byerle, L.A., Paegle, J., Description of the seasonal cycle of low-level flows flanking the Andes and their interannual variability (2002) Meteorologica, 27, pp. 71-88
  • Campetella, C., Vera, C., The influence of the Andes Mountains on the South American low-level flow (2002) Geophys. Res. Lett., 29, p. 1826. , doi:10.1029/2002GLO15451
  • Cavalcanti, I., Herdies, D., Data assimilation study using SALLJEX data (2004) CLIVAR Exchanges, 9 (1), pp. 23-25. , International CLIVAR Project Office
  • Calvacanti, I., Climatological features represented by the CPTEC-COLA AGCM (2002) J. Climate, 15, pp. 2965-2988. , and Coauthors
  • Douglas, M., Nicolini, M., Saulo, C., The low level jet at Santa Cruz, Bolivia, during the January-March 1998, pilot balloon observations and model comparison (1999) 10th Conf on Global Change Studies, pp. 11-12. , Preprints, Dallas, TX, Amer. Meteor. Soc
  • Emmanuel, C.B., Meitin, J., Ereño, C., The South America Low Level Jet Experiment [SALLJEXI, Multinational logistics, coordination, and the implementation of the daily operations (2004) CLIVAR Exchanges, 9 (1). , International CLIVAR Project Office
  • Garreaud, R.D., Multiscale analysis of the summertime precipitation over the central Andes (1999) Mon. Wea. Rev., 127, pp. 901-921
  • Lichenstein, F.R., The northwestern Argentina depression (1980), p. 223. , (in Spanish) Ph.D. dissertation, University of Buenos Aires; Marengo, J., Fisch, G., Vendrame, I., Cervantes, I., Morales, C., On the diurnal and day-to-day variability of rainfall in Southwest Amazonia during the LBA-TRMM and LBA-WET AMC Campaigns of summer 1999 (2004) Acta Amazónica, 34, pp. 503-593
  • Marengo, J., Soares, W., Saulo, C., Nicolini, M., Climatology of the LLJ east of the Andes as derived from the NCEP reanalyses (2004) J. Climate, 17, pp. 2261-2280
  • Nesbitt, S.W., Zipser, E.J., The diurnal cycle of rainfall and convective intensity to three years of TRMM measurements (2003) J. Climate, 16, pp. 1456-1475
  • Nicolini, M., Saulo, C., Torres, J.C., Salio, P., Strong South American low-level jet events characterization during warm season and implications for enhanced precipitation (2002) Meteorologica, 27, pp. 59-69. , (Special Issue on South American Moonsoon System)
  • Nicolini, M., Salio, P., Torres, J.C., Zipser, E.J., The relationship between South American low level jet events with the formation and maintenance of mesoscale convective systems (2004) 14th Int. Cont. on Clouds and Precipitation, pp. 13-16. , Bologna, Italy, IAMAS/International Commission on Clouds and Precipitation
  • Nicolini, M., Salio, P., Ulke, G., Marengo, J., Douglas, M., Paegle, J., Zipser, E., South American low-level jet diurnal cycle and three-dimensional structure (2004) CLIVAR Exchanges, 9 (1), pp. 6-9. , International CLIVAR Project Office
  • Paegle, J., Zhang, C.D., Baumhefner, D.B., Atmospheric response to tropical thermal forcing in real data integrations (1987) Mon. Wea. Rev., 115, pp. 2975-2995
  • Paegle, J., Zhang, C.D., Baumhefnerand, D.B., Modeling studies related to SALLJEX (2004) CLIVAR Exchanges, 9, pp. 20-23. , and Coauthors, International CLIVAR Project Office
  • Ropelewski, C.H., Halpert, S., Global and regional scale precipitation patterns associated with the El Niño/Southern Oscillation (1987) Mon. Wea. Rev., 115, pp. 1606-1626
  • Salio, P., Nicolini, M., Saulo, A.C., Chaco low-level jet events characterization during the austral summer season (2002) J. Geophys. Res., 107, p. 4816. , doi:10.1029/2001jb001315
  • Saulo, A.C., Nicolini, M., Chou, S.C., Model characterization of the South American low-level flow during the 1997-1998 spring-summer season (2000) Climate Dyn., 16, pp. 867-881
  • Saulo, A.C., Ferreira, L.J., Mejia, J., Seluchi, M., Description of the thermal low characteristics using SALLJEX special observations (2004) CLIVAR Exchanges, 9 (1), pp. 9-11. , International CLIVAR Project Office
  • Saulo, A.C., Seluchi, M.E., Nicolini, M., A case study of a Chaco low-level jet event (2004) Mon. Wea. Rev., 132, pp. 2669-2683
  • Seluchi, M., Saulo, A., Nicolini, C.M., Satyamurty, P., The northwestern Argentinean low: A study of two typical events (2003) Mon. Wea. Rev., 131, pp. 2361-2378
  • Silva Dias, P.L., Moreira, D., Silva Dias, M.F., Downscaling resolution and the moisture budget of the Plata Basin (2001) IX Congreso Latinoamericano E Lberico De Meteorología Y VIII Congreso Argentino De Meteorología. La Meteorología Y El Medio Ambiente En El Siglo XXI, , Buenos Aires, Argentina, Centro Argentino de Meteorológos, CD-ROM, 8.C.27-341
  • Virji, H., A preliminary study of summertime tropospheric circulation patterns over South America estimated from cloud winds (1981) Mon. Wea. Rev., 109, pp. 599-610
  • Xie, P., Arkin, P.A., Global precipitation: A 17-year monthly analysis based on gauge observations, satellite estimates, and numerical model outputs (1997) Bull. Amer. Meteor. Soc., 78, pp. 2539-2558
  • Zipser, E., Salio, P., Nicolini, M., Mesoscale convective systems activity during SALLJEX and the relationship with SALLJ events (2004) CLIMAR Exchanges, 9 (1), pp. 14-18. , International CLIVAR Project Office

Citas:

---------- APA ----------
Vera, C., Baez, J., Douglas, M., Emmanuel, C.B., Marengo, J., Meitin, J., Nicolini, M.,..., Zipser, E. (2006) . The South American low-level jet experiment. Bulletin of the American Meteorological Society, 87(1), 63-77.
http://dx.doi.org/10.1175/BAMS-87-1-63
---------- CHICAGO ----------
Vera, C., Baez, J., Douglas, M., Emmanuel, C.B., Marengo, J., Meitin, J., et al. "The South American low-level jet experiment" . Bulletin of the American Meteorological Society 87, no. 1 (2006) : 63-77.
http://dx.doi.org/10.1175/BAMS-87-1-63
---------- MLA ----------
Vera, C., Baez, J., Douglas, M., Emmanuel, C.B., Marengo, J., Meitin, J., et al. "The South American low-level jet experiment" . Bulletin of the American Meteorological Society, vol. 87, no. 1, 2006, pp. 63-77.
http://dx.doi.org/10.1175/BAMS-87-1-63
---------- VANCOUVER ----------
Vera, C., Baez, J., Douglas, M., Emmanuel, C.B., Marengo, J., Meitin, J., et al. The South American low-level jet experiment. Bull. Am. Meteorol. Soc. 2006;87(1):63-77.
http://dx.doi.org/10.1175/BAMS-87-1-63