Artículo
Abstract:
Until the mid 1970s a negative trend in the river flow values in the Argentinean provinces of San Juan and Mendoza (Cuyo region) was observed. The prevailing critical conditions and their economic and social impacts provide a basis for the characterization of an adverse climate change scenario for the region. The causes of the early 1970s scenario were assessed in this study in order to determine whether or not it could be related to global warming conditions. River flows are dependent on winter precipitation and on accumulated snow on the Andes cordillera. The lowest negative river flow value observed can be explained by the behaviour of the Southern Oscillation Index (SOI) and other macroclimatic parameters, such as sea-surface temperatures (SSTs) of the Atlantic and Pacific oceans. It was observed that the SOI is the parameter most strongly correlated with river flows. The highest correlation was found for the 2.4- and 4.8-yr frequencies and the low 43-yr frequency. Consequently, the low river flow values observed during the early 1970s are considered to be related to a low-frequency minimum of the El Niño-Southern Oscillation (ENSO), as well as to the behaviour of sea-surface temperature close to the coast of Chile. Both factors are associated with a minimum hemispheric temperature value. It is concluded that the 1960-70 drought in the oases of the Cordillera was not linked to a warm period. Therefore it is not appropriate, at least for the time being, to state that the oases will experience drought conditions under a global warming scenario with temperature increases of a few degrees.
Registro:
| Documento: | Artículo |
| Título: | Impacts of climate change on the oases of the Argentinean cordillera |
| Autor: | Carril, A.F.; Doyle, M.E.; Barros, V.R.; Núñez, M.N. |
| Filiación: | Ctro. Invest. del Mar y la Atmosfera, Univ. Buenos Aires - Consejo Nac. I., Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina Depto. de Cie. de la Atmosfera, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina |
| Palabras clave: | Climate change; Flow anomalies; Rivers of the Cuyo region; Sea-surface temperatures; Southern Oscillation; climate change; drought; El Nino/Southern Oscillation; ENSO; nature-society relations; oases; river flow; sea surface temperature; Southern Oscillation; water resources; Argentina, Mendoza Province; Argentina, San Juan Province |
| Año: | 1997 |
| Volumen: | 9 |
| Número: | 1-2 |
| Página de inicio: | 121 |
| Página de fin: | 129 |
| DOI: | http://dx.doi.org/10.3354/cr009121 |
| Título revista: | Climate Research |
| Título revista abreviado: | Clim. Res. |
| ISSN: | 0936577X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0936577X_v9_n1-2_p121_Carril |
Referencias:
- Aceituno, P., Anomalías climáticas en la región sudamericana durante los extremos de la Oscilación Austral (1990) Rev Geofís IGPH, 32, pp. 65-78
- Aceituno, P., Del Río, A., Rutllant, J., Rainfall anomalies in the subtropical west coast of South America. Part I: Relationships with SST and convective activity over the central Pacific (1989) Third International Conference on Southern Hemisphere Meteorology & Oceanography, pp. 162-166. , Extended Abstracts: American Meteorological Soc (eds) Buenos Aires, Nov 13-17, 1989
- Aceituno, P., Vidai, F., Variabilidad interanual en el caudal de los nos Andinos de Chile central en relación con la temperatura de la superficie del mar en el Pacífico central (1990) Rev Soc Ingeniería Hidráulica, 5 (1), pp. 7-19. , Chile
- Angell, J.K., Global, hemispheric, and zonal temperatures anomalies derived from radiosonde records (1994) TRENDS '93: A Compendium of Data on Global Change, pp. 636-672. , Boden TA, Kaiser DP, Sepanski RJ, Stoss FW (eds) Carbon Dioxide Information Analysis Center Publication No. ORNL/CDIAC-65
- Jenkins, G.M., Watts, D.G., Spectral analysis and its applications (1968) Holden-Day Series in Time Series Analysis, , Jenkins and Parzen, San Francisco
- Karoly, D.J., Southern Hemisphere circulation features associated with the El Niño-Southern Oscillation event (1989) J Clim, 2, pp. 1239-1252
- Rasmusson, E.M., Wang, X., Ropelewski, C.F., The biennial component of ENSO variability (1989) J Mar Sci, 1, pp. 71-96. , Proc 21st Int Liège Colloquium on Ocean Hydrodynamics
- Rutilant, J., Cambio climático y anomalíes extratropicales en la circulación atmosférica regional de América del Sur: Una perspectiva ENOS (1990) Rev Geof IGPH, 32, pp. 143-150
Citas:
---------- APA ----------
Carril, A.F., Doyle, M.E., Barros, V.R. & Núñez, M.N. (1997) . Impacts of climate change on the oases of the Argentinean cordillera. Climate Research, 9(1-2), 121-129.http://dx.doi.org/10.3354/cr009121
---------- CHICAGO ----------
Carril, A.F., Doyle, M.E., Barros, V.R., Núñez, M.N. "Impacts of climate change on the oases of the Argentinean cordillera" . Climate Research 9, no. 1-2 (1997) : 121-129.http://dx.doi.org/10.3354/cr009121
---------- MLA ----------
Carril, A.F., Doyle, M.E., Barros, V.R., Núñez, M.N. "Impacts of climate change on the oases of the Argentinean cordillera" . Climate Research, vol. 9, no. 1-2, 1997, pp. 121-129.http://dx.doi.org/10.3354/cr009121
---------- VANCOUVER ----------
Carril, A.F., Doyle, M.E., Barros, V.R., Núñez, M.N. Impacts of climate change on the oases of the Argentinean cordillera. Clim. Res. 1997;9(1-2):121-129.http://dx.doi.org/10.3354/cr009121
