Caracterizacion de las sequias meteorologicas en la region central de la Argentina/Varying degrees of droughts repeatedly affect, several regions in Argentina

• Published in: Tecnología y ciencias del agua Vol. 6; no. 1; p. 153
• Main Authors: Vicario, Leticia, Garcia, Carlos M, Teich, Ingrid, Bertoni, Juan Carlos, Ravelo, Andres, Rodriguez, Andres
• Format: Journal Article
• Language: English
• Published: 01-01-2015
• Subjects: Argentina; Argentina, Entre Rios; Argentina, Cordoba
• ISSN: 0187-8336; 2007-2422

Varying degrees of droughts repeatedly affect several regions in Argentina. Given the agricultural-livestock character of central Argentina, the analysis and assessment of droughts in that region is economically and strategically important. This situation is even more relevant since some of the largest cities in the country are located in this area. This present work analyzes the spatial variability of the meteorological droughts in the study area using the standardized precipitation index for sub-areas and the region, while also taking into account the influence of ENSO. To identify the sub-areas affected by hydrometeorological deficits, annual mean rainfall was analyzed in 15 locations in the study area. Criteria and statistical techniques were applied to this variable and monthly rain gauge series were used from stations in the provinces of Cordoba, Santa Fe and Entre Rios for the period 1980-2009. Three groups of stations with similar pluviometric behavior were identified, particularly behaviors related to intense droughts, thereby identifying spatial scales or sub-areas of influence corresponding to the hydrometeorological deficit.