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Assessing and predicting the impact of El Niño southern oscillation (ENSO) events on runoff from the Chopim River basin, Brazil
Author(s) -
Chavasse Diana I.,
Seoane Rafael S.
Publication year - 2009
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/hyp.7392
Subject(s) - surface runoff , el niño southern oscillation , environmental science , hydrology (agriculture) , structural basin , drainage basin , climatology , multivariate enso index , southern oscillation , geology , geography , geomorphology , cartography , biology , ecology , geotechnical engineering
The main purpose of the research described in this contribution was to apply a conceptual hydrological model to predict runoff volumes when El Niño southern oscillation (ENSO) events occur. Statistical analysis was used to assess the impact of ENSO events on rainfall and runoff variables across the Chopim River basin. A conceptual model was calibrated and validated to simulate the rainfall–runoff processes within the basin. An extended runoff volume prediction procedure was applied to derive forecasts of runoff volumes for different lead times for the different rainfall data series. Copyright © 2009 John Wiley & Sons, Ltd.