Author(s): Marian Muste; Kyeongdong Kim; Dongsu Kim

Linked Author(s): Dongsu Kim, Marian Muste

Keywords: No Keywords

Abstract: Since the early stages of hydrological monitoring, river and stream observations have relied on fit-for-purpose, semi-empirical methods that have gradually evolved alongside advances in measurement technologies. The protocols for routine monitoring are still dominated by the century-old stage discharge relationship (rating) based on a graphical consruction of pairs of stage and discharge measurements acquired simultaneously. More recently (since early 1980’s), new monitoring methods have been developed and tested for counteracting the simplifying assumptions of the stage-discharge rating (HQRC) by adding more variables measured continuously along with the stage, i.e., index-velocity method (IVRC) or free-surface slope method (CSA). The HQRC method continues to dominate the acquisition of streamflow time series at worldwide gaging stations with many countries using HQRC as the only operational monitoring method.

DOI:

Year: 2026