On the definition of solid discharge in hydro-environment research and applications

Francesco Ballio*, V.I. Nikora, Stephen E. Coleman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Various forms of mass balance equations are commonly used in sediment transport studies and applications. However, the quantities involved in such equations are not always clearly defined, with sediment flux (or solid discharge) as a typical example. Starting with the fundamental definitions, this paper provides a general and consistent framework for integral (Eulerian) mass balances and gives scale-consistent definitions for instantaneous and time-averaged variables. In particular, alternative expressions for the instantaneous and averaged solid discharge are proposed and compared with the existing formulations. Conceptual developments of this study are illustrated using sediment transport data from laboratory experiments.

Original languageEnglish
Pages (from-to)173-184
Number of pages12
JournalJournal of Hydraulic Research
Issue number2
Publication statusPublished - Mar 2014


  • sediment transport
  • Bedload
  • solid discharge
  • fluvial hydraulics
  • flow


Dive into the research topics of 'On the definition of solid discharge in hydro-environment research and applications'. Together they form a unique fingerprint.

Cite this