Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition

Knowing more precisely the onset of the rainy season in a region would reduce risk at crop establishment. To evaluate this issue, the study proposes a simple procedure based only on daily rainfall data to estimate the onset of the wet season, by analyzing records of seven meteorological stations in...

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Autor principal:	de la Casa,Antonio
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2009
Materias:	onset of rainy season risk of implantation bivariate normal distribution
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400012
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spelling	oai:scielo:S0718-583920090004000122018-10-01Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Conditionde la Casa,Antonio onset of rainy season risk of implantation bivariate normal distribution Knowing more precisely the onset of the rainy season in a region would reduce risk at crop establishment. To evaluate this issue, the study proposes a simple procedure based only on daily rainfall data to estimate the onset of the wet season, by analyzing records of seven meteorological stations in the Province of Córdoba between the years 1961 and 2006. The onset of the rainy season was defined according to the simultaneous occurrence of two conditions: (i) the amount of rainfall in 3 consecutive days equal to or greater than 20 or 30 mm, (ii) a period without rain of 7 to 16 d during the subsequent 30-d period. Onset of the rainy season shows strong interannual variability throughout the region. An increase from 20 to 30 mm of rain in 3 successive days delays the onset date, which on the average reaches a maximum of 8 to 13 d, according to location. By allowing a longer period without rain after the initial event, the onset date is systematically earlier by16 to 35 d, depending on initial conditions. Furthermore, the relationship between the onset date and cumulative rainfall in the subsequent 30 d was evaluated with the bivariate normal distribution to estimate the risk level that influences the early sowing decision.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.69 n.4 20092009-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400012en10.4067/S0718-58392009000400012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	onset of rainy season risk of implantation bivariate normal distribution
spellingShingle	onset of rainy season risk of implantation bivariate normal distribution de la Casa,Antonio Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
description	Knowing more precisely the onset of the rainy season in a region would reduce risk at crop establishment. To evaluate this issue, the study proposes a simple procedure based only on daily rainfall data to estimate the onset of the wet season, by analyzing records of seven meteorological stations in the Province of Córdoba between the years 1961 and 2006. The onset of the rainy season was defined according to the simultaneous occurrence of two conditions: (i) the amount of rainfall in 3 consecutive days equal to or greater than 20 or 30 mm, (ii) a period without rain of 7 to 16 d during the subsequent 30-d period. Onset of the rainy season shows strong interannual variability throughout the region. An increase from 20 to 30 mm of rain in 3 successive days delays the onset date, which on the average reaches a maximum of 8 to 13 d, according to location. By allowing a longer period without rain after the initial event, the onset date is systematically earlier by16 to 35 d, depending on initial conditions. Furthermore, the relationship between the onset date and cumulative rainfall in the subsequent 30 d was evaluated with the bivariate normal distribution to estimate the risk level that influences the early sowing decision.
author	de la Casa,Antonio
author_facet	de la Casa,Antonio
author_sort	de la Casa,Antonio
title	Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
title_short	Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
title_full	Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
title_fullStr	Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
title_full_unstemmed	Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition
title_sort	onset of the rainy season in the province of córdoba (argentina) determined by rainfall records and evaluation of its agricultural risk condition
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392009000400012
work_keys_str_mv	AT delacasaantonio onsetoftherainyseasonintheprovinceofcordobaargentinadeterminedbyrainfallrecordsandevaluationofitsagriculturalriskcondition
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Onset of the Rainy Season in the Province of Córdoba (Argentina) Determined by Rainfall Records and Evaluation of its Agricultural Risk Condition

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