Assessing how accumulated precipitation and long dry sequences impact the soil water storage
Precipitation or no precipitation persistent over time often became extreme weather conditions with greater regional economic impact. The temporal and spatial variability of these variables, together with the evapotranspiration, is crucial in the east-northeast of Argentina, where rain-fed agricultu...
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2017
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n12_p4316_Pantano http://hdl.handle.net/20.500.12110/paper_08998418_v37_n12_p4316_Pantano |
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paper:paper_08998418_v37_n12_p4316_Pantano2023-06-08T15:49:47Z Assessing how accumulated precipitation and long dry sequences impact the soil water storage Penalba, Olga C. dry spells precipitation distribution return period soil-atmosphere interaction Agriculture Drought Evapotranspiration Probability Regional planning Soil moisture Soils Agricultural productions Dry spells Extreme weather conditions Lower probabilities Precipitation distribution Return periods Soil atmosphere Temporal and spatial variability Water supply atmosphere-biosphere interaction evapotranspiration precipitation (climatology) precipitation assessment precipitation intensity return period soil water spatial variation water storage Argentina Precipitation or no precipitation persistent over time often became extreme weather conditions with greater regional economic impact. The temporal and spatial variability of these variables, together with the evapotranspiration, is crucial in the east-northeast of Argentina, where rain-fed agricultural production is carried out. In this work, the frequency of precipitation was studied from dry spells and complemented with an analysis of the accumulated precipitation and evapotranspiration. In particular, dry sequences longer than 15 days, return period and severity, were the focus of this study. Finally, the impact of the amount and frequency of precipitation on soil water storage was assessed through a decadal analysis. The region of study is characterized by northeast-southwest gradient in accumulated precipitation and east–west gradient in winter long dry sequences. During summer, higher and more frequent precipitations (lower probability of long dry sequences and lower return period of 15 days and severity) were presented whereas the opposite was found in winter. However, the stations located to the west presented the highest probability of long dry sequences with higher severity and lower accumulated precipitation. This result highlights the vulnerability of the agriculture activity in the western stations. Regarding the impact of long dry sequences over soil water storage, the seasonality of evapotranspiration is also involved. The impact is stronger during austral summer because of higher values of evapotranspiration and it is lower during winter, in spite of the higher probability of long sequences. Decadal analysis suggested that soil water storage responds to precipitation amount or frequency depending on the magnitude of the anomalies. In this sense, the impact of precipitation over soil water storage depends on how it is distributed. © 2017 Royal Meteorological Society Fil:Penalba, O.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n12_p4316_Pantano http://hdl.handle.net/20.500.12110/paper_08998418_v37_n12_p4316_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 |
dry spells precipitation distribution return period soil-atmosphere interaction Agriculture Drought Evapotranspiration Probability Regional planning Soil moisture Soils Agricultural productions Dry spells Extreme weather conditions Lower probabilities Precipitation distribution Return periods Soil atmosphere Temporal and spatial variability Water supply atmosphere-biosphere interaction evapotranspiration precipitation (climatology) precipitation assessment precipitation intensity return period soil water spatial variation water storage Argentina |
| spellingShingle |
dry spells precipitation distribution return period soil-atmosphere interaction Agriculture Drought Evapotranspiration Probability Regional planning Soil moisture Soils Agricultural productions Dry spells Extreme weather conditions Lower probabilities Precipitation distribution Return periods Soil atmosphere Temporal and spatial variability Water supply atmosphere-biosphere interaction evapotranspiration precipitation (climatology) precipitation assessment precipitation intensity return period soil water spatial variation water storage Argentina Penalba, Olga C. Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| topic_facet |
dry spells precipitation distribution return period soil-atmosphere interaction Agriculture Drought Evapotranspiration Probability Regional planning Soil moisture Soils Agricultural productions Dry spells Extreme weather conditions Lower probabilities Precipitation distribution Return periods Soil atmosphere Temporal and spatial variability Water supply atmosphere-biosphere interaction evapotranspiration precipitation (climatology) precipitation assessment precipitation intensity return period soil water spatial variation water storage Argentina |
| description |
Precipitation or no precipitation persistent over time often became extreme weather conditions with greater regional economic impact. The temporal and spatial variability of these variables, together with the evapotranspiration, is crucial in the east-northeast of Argentina, where rain-fed agricultural production is carried out. In this work, the frequency of precipitation was studied from dry spells and complemented with an analysis of the accumulated precipitation and evapotranspiration. In particular, dry sequences longer than 15 days, return period and severity, were the focus of this study. Finally, the impact of the amount and frequency of precipitation on soil water storage was assessed through a decadal analysis. The region of study is characterized by northeast-southwest gradient in accumulated precipitation and east–west gradient in winter long dry sequences. During summer, higher and more frequent precipitations (lower probability of long dry sequences and lower return period of 15 days and severity) were presented whereas the opposite was found in winter. However, the stations located to the west presented the highest probability of long dry sequences with higher severity and lower accumulated precipitation. This result highlights the vulnerability of the agriculture activity in the western stations. Regarding the impact of long dry sequences over soil water storage, the seasonality of evapotranspiration is also involved. The impact is stronger during austral summer because of higher values of evapotranspiration and it is lower during winter, in spite of the higher probability of long sequences. Decadal analysis suggested that soil water storage responds to precipitation amount or frequency depending on the magnitude of the anomalies. In this sense, the impact of precipitation over soil water storage depends on how it is distributed. © 2017 Royal Meteorological Society |
| author |
Penalba, Olga C. |
| author_facet |
Penalba, Olga C. |
| author_sort |
Penalba, Olga C. |
| title |
Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| title_short |
Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| title_full |
Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| title_fullStr |
Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| title_full_unstemmed |
Assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| title_sort |
assessing how accumulated precipitation and long dry sequences impact the soil water storage |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08998418_v37_n12_p4316_Pantano http://hdl.handle.net/20.500.12110/paper_08998418_v37_n12_p4316_Pantano |
| work_keys_str_mv |
AT penalbaolgac assessinghowaccumulatedprecipitationandlongdrysequencesimpactthesoilwaterstorage |
| _version_ |
1768542946206941184 |