DISCALC: a computer algorithm for computing the flow characteristics of flood discharges in stream channel cross sections

Research output: Contribution to journalArticlepeer-review

Abstract

Geomorphologists occasionally desire estimates of flow conditions for past or future flood events. Manual methods for computing flow characteristics of flood discharges may be time-consuming and tedious. Computational shortcuts involving the substitution of depth of flow for hydraulic radius in hydraulic equations may yield results with significant bias. DISCALC is a computer program that calculates uniform-flow characteristics of flood discharges within stream-channel cross sections. It eliminates computational bias by calculating hydraulic measures based on their precise mathematical definitions. The algorithm contains an iterative routine that converges on the desired discharge by changing the vertical position of the water surface within the stream-channel cross section. The program is capable of handling single thread as well as multithread channels. It also contains options for displaying results on a color monitor or a plotter.

Original languageEnglish (US)
Pages (from-to)495-511
Number of pages17
JournalComputers and Geosciences
Volume13
Issue number5
DOIs
StatePublished - 1987

Keywords

  • Fluvial geomorphology
  • Hydraulic model
  • Paleohydrology

ASJC Scopus subject areas

  • Information Systems
  • Computers in Earth Sciences

Fingerprint Dive into the research topics of 'DISCALC: a computer algorithm for computing the flow characteristics of flood discharges in stream channel cross sections'. Together they form a unique fingerprint.

Cite this