MONTAÑA Elma Carmen
capítulos de libros
"Recent and Historic Andean Snowpack and Streamflow Variations and Vulnerability to Water Shortages in Central-Western Argentina"
MASIOKAS, M.H.; VILLALBA, R.; LUCKMAN, B.H; MONTAÑA, ELMA; CHRISTIE, D.; BETMAN, E.; LE QUESNE, C; MAUGET, S.
Climate Vulnerability: Understanding and Addressing Threats to Essential ResourcesClimate Vulnerability
Elsevier Inc., Academic Press
Lugar: Amsterdam; Año: 2013; p. 213 - 227
In this chapter we provide an overview of recent, empirical analyses of snowpack and streamflow records from the Andes between ca. 30°-37°S which allow an assessment of the importance of the winter snow on regional river discharges and the identification of their main temporal and spatial patterns over the past 100 years. We also assess the relationships between mountain snowpack records and various large-scale ocean-atmospheric variables and features (such as sea-surface temperatures and the El Niño-Southern Oscillation, ENSO) in an attempt to identify the main factors modulating snowpack variations in the Andes. Two complementary, recently developed Andean snowpack reconstructions covering the past two to eight centuries are subsequently examined and their main intra- to multi-decadal (IMD) patterns identified trough time series analysis techniques. Besides the more obvious application in local water management and regional development strategies, this information allows testing the relative significance of the patterns observed during the instrumental period in a long term context, and may be relevant for measuring the strength and time stability of the relationships between Andean snowpack and ENSO or other ocean-atmosphere features over most of the past millennium. Finally, we comment on the varying vulnerabilities to water shortages in the basin of Río Mendoza (one of the main rivers in central-western Argentina) and the potential benefits of integrating instrumental and reconstructed hydrologic data into local socio-economic assessments, water management practices and adaptation planning. ///ELSEVIER, Academic Press, Scientific publisher for 70 years.