The South American low-level jet experiment

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...

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Autores principales: 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.
Formato: JOUR
Materias:
Atmospheric movements
Boundary conditions
Climate change
Computer simulation
Flow patterns
Jets
Moisture
Natural convection
Precipitation (meteorology)
Atmospheric profiling
Rain gauge
Weather station
Climatology
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00030007_v87_n1_p63_Vera
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00030007_v87_n1_p63_Vera
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spelling todo:paper_00030007_v87_n1_p63_Vera2023-10-03T13:55:25Z The South American low-level jet experiment 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. Atmospheric movements Boundary conditions Climate change Computer simulation Flow patterns Jets Moisture Natural convection Precipitation (meteorology) Atmospheric profiling Rain gauge Weather station Climatology 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00030007_v87_n1_p63_Vera
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atmospheric movements
Boundary conditions
Climate change
Computer simulation
Flow patterns
Jets
Moisture
Natural convection
Precipitation (meteorology)
Atmospheric profiling
Rain gauge
Weather station
Climatology
spellingShingle Atmospheric movements
Boundary conditions
Climate change
Computer simulation
Flow patterns
Jets
Moisture
Natural convection
Precipitation (meteorology)
Atmospheric profiling
Rain gauge
Weather station
Climatology
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
topic_facet Atmospheric movements
Boundary conditions
Climate change
Computer simulation
Flow patterns
Jets
Moisture
Natural convection
Precipitation (meteorology)
Atmospheric profiling
Rain gauge
Weather station
Climatology
description 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.
format JOUR
author 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.
author_facet 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.
author_sort Vera, C.
title The South American low-level jet experiment
title_short The South American low-level jet experiment
title_full The South American low-level jet experiment
title_fullStr The South American low-level jet experiment
title_full_unstemmed The South American low-level jet experiment
title_sort south american low-level jet experiment
url http://hdl.handle.net/20.500.12110/paper_00030007_v87_n1_p63_Vera
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