Incidence and trend of blocking action situations on the temperature and precipitation in Argentina

In southern South America and for the period 1960-2011, frequencies and trends of seasonal blocking situations (Bs) determined at 100, 70 and 40° W (B100, B70 and B40), respectively are estimated. The effect of such situations on temperature and precipitation is also analyzed. The distribution of oc...

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Guardado en:
Detalles Bibliográficos
Autor principal: Alessandro, A.P.
Formato: JOUR
Materias:
Circulation change
Indices
Precipitation
Temperature
air temperature
atmospheric blocking
atmospheric circulation
precipitation (climatology)
temperature anomaly
Argentina
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01876236_v27_n2_p141_Alessandro
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01876236_v27_n2_p141_Alessandro
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spelling todo:paper_01876236_v27_n2_p141_Alessandro2023-10-03T15:08:49Z Incidence and trend of blocking action situations on the temperature and precipitation in Argentina Alessandro, A.P. Circulation change Indices Precipitation Temperature air temperature atmospheric blocking atmospheric circulation precipitation (climatology) temperature anomaly Argentina In southern South America and for the period 1960-2011, frequencies and trends of seasonal blocking situations (Bs) determined at 100, 70 and 40° W (B100, B70 and B40), respectively are estimated. The effect of such situations on temperature and precipitation is also analyzed. The distribution of occurrences of B100, B70 and B40 peaks in spring and has minimum values in summer; trends are positive in summer and fall and negative in winter and spring. To the north of approximately 38° S, B70 determines negative temperature anomalies (DT) over the entire country during the four seasons and B40 in spring and summer. Except for summer, rainfall is greater than normal when Bs occur at both longitudes. To the south of approximately 38° S, B100 give place to negative δT. The frequencies and amounts of precipitation are greater in spring. This area is limited to the northernmost northern (southernmost southern) area in fall (summer). According to the signs of the trends of the Bs and to the associated values of temperature and precipitation, the way in which they may have contributed to the change in both variables during 1960-2011 is inferred. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01876236_v27_n2_p141_Alessandro
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Circulation change
Indices
Precipitation
Temperature
air temperature
atmospheric blocking
atmospheric circulation
precipitation (climatology)
temperature anomaly
Argentina
spellingShingle Circulation change
Indices
Precipitation
Temperature
air temperature
atmospheric blocking
atmospheric circulation
precipitation (climatology)
temperature anomaly
Argentina
Alessandro, A.P.
Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
topic_facet Circulation change
Indices
Precipitation
Temperature
air temperature
atmospheric blocking
atmospheric circulation
precipitation (climatology)
temperature anomaly
Argentina
description In southern South America and for the period 1960-2011, frequencies and trends of seasonal blocking situations (Bs) determined at 100, 70 and 40° W (B100, B70 and B40), respectively are estimated. The effect of such situations on temperature and precipitation is also analyzed. The distribution of occurrences of B100, B70 and B40 peaks in spring and has minimum values in summer; trends are positive in summer and fall and negative in winter and spring. To the north of approximately 38° S, B70 determines negative temperature anomalies (DT) over the entire country during the four seasons and B40 in spring and summer. Except for summer, rainfall is greater than normal when Bs occur at both longitudes. To the south of approximately 38° S, B100 give place to negative δT. The frequencies and amounts of precipitation are greater in spring. This area is limited to the northernmost northern (southernmost southern) area in fall (summer). According to the signs of the trends of the Bs and to the associated values of temperature and precipitation, the way in which they may have contributed to the change in both variables during 1960-2011 is inferred.
format JOUR
author Alessandro, A.P.
author_facet Alessandro, A.P.
author_sort Alessandro, A.P.
title Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
title_short Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
title_full Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
title_fullStr Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
title_full_unstemmed Incidence and trend of blocking action situations on the temperature and precipitation in Argentina
title_sort incidence and trend of blocking action situations on the temperature and precipitation in argentina
url http://hdl.handle.net/20.500.12110/paper_01876236_v27_n2_p141_Alessandro
work_keys_str_mv AT alessandroap incidenceandtrendofblockingactionsituationsonthetemperatureandprecipitationinargentina
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