Hydrostatistical study of the Paraná and Uruguay Rivers

MEIS, MELANIE; LLANO, MARÍA PAULA

International Journal of River Basin Management

Taylor & Francis

Lugar: Londres; Año: 2018

1571-5124

In this study we analysed gauging stations in the Paraná and Uruguay Rivers, two rivers with excessive runoff which is used for energy and irrigation. We studied their statistical structure and applied spectral techniques to monthly streamflow in order to represent temporal and spatial variability. We also explored the relationship of some of these series with ENSO variability. Given these conditions, climatic coherence studies between pairs of stations in the Paraná network, especially for the most frequent waves (less than two years), turned out to be redundant. Furthermore, we observed that series for stations in the Paraná River fit to common theoretical distributions, where normality is absent, making this kind of analysis to be redundant as well. The exploratory analysis for this streamflow network, and its extensive records, suggest that in order to improve hydro-climatological studies reference stations can be selected for each River.