Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin

Projected changes were estimated considering the main variables which take part in soil-atmosphere interaction. The analysis was focused on the potential impact of these changes on soil hydric condition under extreme precipitation and evapotranspiration, using the combination of Global Climate Model...

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Autores principales: Pántano, V.C., Penalba, O.C.
Formato: JOUR
Materias:
atmosphere-biosphere interaction
ensemble forecasting
evapotranspiration
extreme event
general circulation model
soil
temperature
Argentina
La Plata Basin
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0177798X_v134_n3-4_p1257_Pantano
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_0177798X_v134_n3-4_p1257_Pantano
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spelling todo:paper_0177798X_v134_n3-4_p1257_Pantano2023-10-03T15:08:12Z Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin Pántano, V.C. Penalba, O.C. atmosphere-biosphere interaction ensemble forecasting evapotranspiration extreme event general circulation model soil temperature Argentina La Plata Basin Projected changes were estimated considering the main variables which take part in soil-atmosphere interaction. The analysis was focused on the potential impact of these changes on soil hydric condition under extreme precipitation and evapotranspiration, using the combination of Global Climate Models (GCMs) and observational data. The region of study is the southern La Plata Basin that covers part of Argentine territory, where rainfed agriculture production is one of the most important economic activities. Monthly precipitation and maximum and minimum temperatures were used from high quality-controlled observed data from 46 meteorological stations and the ensemble of seven CMIP5 GCMs in two periods: 1970–2005 and 2065–2100. Projected changes in monthly effective temperature and precipitation were analysed. These changes were combined with observed series for each probabilistic interval. The result was used as input variables for the water balance model in order to obtain consequent soil hydric condition (deficit or excess). Effective temperature and precipitation are expected to increase according to the projections of GCMs, with few exceptions. The analysis revealed increase (decrease) in the prevalence of evapotranspiration over precipitation, during spring (winter). Projections for autumn months show precipitation higher than potential evapotranspiration more frequently. Under dry extremes, the analysis revealed higher projected deficit conditions, impacting on crop development. On the other hand, under wet extremes, excess would reach higher values only in particular months. During December, projected increase in temperatures reduces the impact of extreme high precipitation but favours deficit conditions, affecting flower-fructification stage of summer crops. © 2017, Springer-Verlag GmbH Austria, part of Springer Nature. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0177798X_v134_n3-4_p1257_Pantano
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic atmosphere-biosphere interaction
ensemble forecasting
evapotranspiration
extreme event
general circulation model
soil
temperature
Argentina
La Plata Basin
spellingShingle atmosphere-biosphere interaction
ensemble forecasting
evapotranspiration
extreme event
general circulation model
soil
temperature
Argentina
La Plata Basin
Pántano, V.C.
Penalba, O.C.
Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
topic_facet atmosphere-biosphere interaction
ensemble forecasting
evapotranspiration
extreme event
general circulation model
soil
temperature
Argentina
La Plata Basin
description Projected changes were estimated considering the main variables which take part in soil-atmosphere interaction. The analysis was focused on the potential impact of these changes on soil hydric condition under extreme precipitation and evapotranspiration, using the combination of Global Climate Models (GCMs) and observational data. The region of study is the southern La Plata Basin that covers part of Argentine territory, where rainfed agriculture production is one of the most important economic activities. Monthly precipitation and maximum and minimum temperatures were used from high quality-controlled observed data from 46 meteorological stations and the ensemble of seven CMIP5 GCMs in two periods: 1970–2005 and 2065–2100. Projected changes in monthly effective temperature and precipitation were analysed. These changes were combined with observed series for each probabilistic interval. The result was used as input variables for the water balance model in order to obtain consequent soil hydric condition (deficit or excess). Effective temperature and precipitation are expected to increase according to the projections of GCMs, with few exceptions. The analysis revealed increase (decrease) in the prevalence of evapotranspiration over precipitation, during spring (winter). Projections for autumn months show precipitation higher than potential evapotranspiration more frequently. Under dry extremes, the analysis revealed higher projected deficit conditions, impacting on crop development. On the other hand, under wet extremes, excess would reach higher values only in particular months. During December, projected increase in temperatures reduces the impact of extreme high precipitation but favours deficit conditions, affecting flower-fructification stage of summer crops. © 2017, Springer-Verlag GmbH Austria, part of Springer Nature.
format JOUR
author Pántano, V.C.
Penalba, O.C.
author_facet Pántano, V.C.
Penalba, O.C.
author_sort Pántano, V.C.
title Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
title_short Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
title_full Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
title_fullStr Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
title_full_unstemmed Soil response to long-term projections of extreme temperature and precipitation in the southern La Plata Basin
title_sort soil response to long-term projections of extreme temperature and precipitation in the southern la plata basin
url http://hdl.handle.net/20.500.12110/paper_0177798X_v134_n3-4_p1257_Pantano
work_keys_str_mv AT pantanovc soilresponsetolongtermprojectionsofextremetemperatureandprecipitationinthesouthernlaplatabasin
AT penalbaoc soilresponsetolongtermprojectionsofextremetemperatureandprecipitationinthesouthernlaplatabasin
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