Analysis of intense hydrological periods based on observed and estimated flow series at a reference station on the Paraná River, Argentina

Abstract

The hydrological variability and especially extreme phenomena such as droughts and floods affect natural and human systems worldwide. The Paraná River sub-basin, belonging to the La Plata basin, is of great regional importance, and in recent years extreme events have been observed that have impacted socio-economic aspects of the community. This study compares the series of a relevant hydrological index, calculated from observed flows and unregulated contributions within Argentine territory, at the same reference station. Intense hydrological periods are analyzed in both cases, for droughts and excess water events, for subsequent comparison.

Keywords

• extreme hydrological phenomena
• SDI index
• regulated and unregulated flows