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Regional droughts in southern South America

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Abstract

From a regional inventory of monthly droughts, which was evaluated in six regions of southern South America, the seasonal occurrence of the phenomenon and its persistence together with the duration of monthly and annual sequences, extreme events, and other statistical estimates of the proposed index have been studied. In a primary analysis, it is possible to observe that regions present different behaviors regarding the duration of dry sequences, with more persistence in the Argentinean continental region. Temporal behaviors of the annual indexes have also been analyzed, in the attempt to determine any aspects of the impact of global warming. Through this analysis, the presence of long favorable tendencies regarding precipitations or the inverse of droughts occurrence are confirmed for the eastern Andes Mountains in Argentina (ARG) with its five sub-regions (Northwest Argentina-NWA, Northeast Argentina-NEA, Humid Pampa-HP, West-Centre Provinces-WC and Patagonia-PAT, and the inverse over the central region of Chile (CHI). Other climatic great-scale changes are interdecadales variations and variances explained according to ENSO.

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References

  • Acuña L, Minetti JL, Angueira C (2004) La expansión agrícola y el clima asociado en Santiago del Estero. X Reunión Nacional y IV Latinoamericana de Agrometeorología. AADA. Mar del Plata

  • Alessandro AP, Lichtenstein ER (1996) Situación sinóptica asociada a la sequía del invierno 1995. Geofísica 45:125–143, México

    Google Scholar 

  • Alley WM (1984) The Palmer drought severity index. Limitations and assumptions. J Clim Appl Meteorol 3:1100–1109

    Article  Google Scholar 

  • Gibbs WJ, Mather JR (1967) Rainfall deciles as drought indicators. Bur Met, Melbourne, Bull. 48

  • Gilbert RO (1987) Statistical methods for environmental pollutions monitoring. Wiley, New York, 317 pp

    Google Scholar 

  • Heathcote RL (1973) Drought perception. In: Lovett JL (ed) The environmental, economic and social significance of drought. Angus and Robertson Publishers, Sydney, 318 pp

  • Heim R, Dracup J (2002) A review of twentieth-century drought indices used in the United States. Bull Am Meteorol Soc 83:1149–1165

    Google Scholar 

  • Karl TR (1986) The sensitivity of the Palmer drought severity index and Palmer’s Z-index to their calibration coefficients including potential evapotranspiration. J Clim Appl Meteorol 5:77–86

    Article  Google Scholar 

  • Keyanthash J, Dracup J (2002) The quantification of drought: an evaluation of drought indices. Am Meteorol Soc 1167–1180

  • Kistler R, Kalnay E, Collins W, Saha S, White G, Woollen J, Chellian M, Edisuzaki W, Kanamitso M, Kousky V, Van Den Dool H, Jenne R, Fiorino M (2001) The ENCEP-NCAR 50 year’s reanalysis. Bull Am Meteorol Soc 82:247–267

    Article  Google Scholar 

  • Lucero O, Rodriguez de Lucero NC (1991) Relación estadística entre la ocurrencia de sequías severas en Argentina y la temperatura de la superficie del océano Pacífico. V Congreso Argentino de Agrometeorología. Vaquerias-Córdoba, pp 223–235

  • Malaka I, Nuñez S (1980) Aspectos sinópticos de la sequía que afectó a la República Argentina en el año 1962. Geoacta 10:1–22, AAGG

    Google Scholar 

  • Menzel L, Kundzewicz Z (2004) Strategies to combat floods and droughts. In: global change, enough water for all? Wissenschaftliche Auswertungen, Germany, 384 pp

  • Minetti JL, Sierra EM (1984) La expansión de la frontera agrícola en Tucumán y el diagnóstico climático. RIAT 61(2):109–116, EEAOC. S.M. de Tucumán

    Google Scholar 

  • Minetti JL, Vargas WM (1998) Trends and jumps in the annual precipitations in South America, south of the 15°S. Atmósfera 11:205–221, México

    Google Scholar 

  • Minetti JL, Vargas WM, Poblete AG, Acuña LR, Casagrande G (2004) Non-linear trends and low frequency oscillations in annual precipitation over Argentina and Chile, 1931–99. Atmósfera 16:119–135

    Google Scholar 

  • Minetti JL, Ñongues-Paegle J, Vargas WM, Poblete AG (2005) Inundación de Santa Fé-Procesos climáticos e hidrológicos coadyuvantes. Anal. IX Cong. Arg. De Met.-CAM. Bs.As., Octubre 2005

  • Minetti JL, Vargas WM, Vega B, Costa MC (2007a) Las sequías en la Pampa Húmeda: Impacto en la productividad del maíz. Rev Bras Meteorol 22(2):218–232

    Article  Google Scholar 

  • Minetti JL, Vargas WM, Poblete AG, Mendoza EA (2007b) Posición latitudinal del anticiclón del Pacífico Sur (“L”) y su impacto en el cambio de larga escala del derrame anual de ríos argentinos. Rev Geogr, Año IX, N° 11, 47–55. UNSJ. San Juan

  • Minetti JL, Naumann G, Vargas WM, Poblete AG (2008) Las sequías en el largo plazo en Argentina y sus precursores invernales. Rev Geogr Año 10, N° 12, 26–37. Universidad Nacional de San Juan

  • Minetti JL, Vargas WM, Poblete AG, Mendoza EA (2009) Latitudinal positioning of the subtropical anticyclone along the Chilean coast. Aus Met Oce J 58:91–101

    Google Scholar 

  • Oladipo EO (1998) A comparative performance analysis of the three meteorological drought indices. J Climatol 5:655–664

    Google Scholar 

  • Palmer WC (1965) Meteorological drought. U.S. Dep. Commerce Weather Bureau Res. Paper 45, 58 pp

  • Phillips ID, McGregor GR (1998) The utility of a drought index for assessing the drought hazard in Devon and Cornwall, Southwest England. Meteorol Appl 5:359–372

    Article  Google Scholar 

  • Prohaska FJ (1952) Regímenes estacionales de precipitación en Sudamérica y mares vecinos (desde 15°S hasta Antártica). Meteoros Año II, N° 1–2, 66–100. SMN

  • Ravelo AC, Rotondo VM (1987) Caracterización climática de las sequías en Río IV. III Congreso Argentino de Agrometeorología. Córdoba

  • Rodríguez de Lucero NC (1978) Sequías en la provincia de Bs.As. Meteorológica VIII–IX:95–96, CAM

    Google Scholar 

  • Scian B, Donnari M (1997a) Aplicación del índice de Palmer para la comparación de sequías en las regiones trigueras II, IV y Sur de Argentina. Rev Fac Agric 17.1:41–46

    Google Scholar 

  • Scian B, Donnari M (1997b) Retrospective analysis of the Palmer drought severity index in the semi-arid pampas region, Argentina. Int J Climatol 17:313–322

    Article  Google Scholar 

  • Sierra EM, Conde Pratt M, Perez S, Messina C (1994) Variaciones del régimen de precipitaciones y del área cultivada con granos en la Argentina, 1941-90. VI Reunión Argentina de Agrometeorología. AADA. Córdoba

  • Troha A, Forte Lay JA (1993) Análisis de las principales sequías edáficas ocurridas en la provincia de Bs.As. Geoacta 20:70–86, AAGG

    Google Scholar 

  • Tukey JW (1950) The sampling theory of power spectrum estimates. Symposium on Applications of Autocorrelation Analysis to Physical Problems. U.S. Office of Naval Research. NAVEXOS-P735, 47–67. Washington, DC

  • WMO, World Meteorological Organization (1966) Climate change, Technical Note N° 79, Geneve

  • Yevjevich V (1972a) Stochastic processes in hydrology. Water Resources Publications, Fort Collins, Colorado, USA 276 pp

    Google Scholar 

  • Yevjevich V (1972b) Probability and statistics in hidrology. Water Resources Publications, Fort Collins, 302 pp

    Google Scholar 

Download references

Acknowledgements

We are grateful to the CONICET for the resources of PIP N°2157, to the Secretaría de Ciencia y Técnica de la Nación PIP 5139- ANPCyT-BID PICTR 2002-00186, and to the referee’s revisions, which helped to improve this article.

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Correspondence to J. L. Minetti.

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Minetti, J.L., Vargas, W.M., Poblete, A.G. et al. Regional droughts in southern South America. Theor Appl Climatol 102, 403–415 (2010). https://doi.org/10.1007/s00704-010-0271-1

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