Flow monitoring with a camera: a case study on a flood event in the Tiber River

F. Tauro, G. Olivieri, A. Petroselli, Maurizio Porfiri, S. Grimaldi

Research output: Contribution to journalArticle

Abstract

Monitoring surface water velocity during flood events is a challenging task. Techniques based on deploying instruments in the flow are often unfeasible due to high velocity and abundant sediment transport. A low-cost and versatile technology that provides continuous and automatic observations is still not available. Among remote methods, large-scale particle image velocimetry (LSPIV) is an optical method that computes surface water velocity maps from videos recorded with a camera. Here, we implement and critically analyze findings obtained from a recently introduced LSPIV experimental configuration during a flood event in the Tiber River at a cross section located in the center of Rome, Italy. We discuss the potential of LSPIV observations in challenging environmental conditions by presenting results from three tests performed during the hydrograph flood peak and recession limb of the event for different illumination and weather conditions. The obtained surface velocity maps are compared to the rating curve velocity and to benchmark velocity values. Experimental findings show that optical methods should be preferred in extreme conditions. However, their practical implementation may be associated with further hurdles and uncertainties.

Original languageEnglish (US)
Pages (from-to)118
Number of pages1
JournalEnvironmental Monitoring and Assessment
Volume188
Issue number2
DOIs
StatePublished - Feb 1 2016

Fingerprint

Rheology
Rivers
Cameras
Monitoring
monitoring
river
Velocity measurement
Benchmarking
optical method
Water
Weather
Lighting
Surface waters
Italy
Uncertainty
Extremities
Technology
surface water
Costs and Cost Analysis
rating curve

Keywords

  • Camera observations
  • Flow measurement
  • Flow monitoring
  • Flow velocity
  • Large-scale particle image velocimetry
  • Surface flow

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Flow monitoring with a camera : a case study on a flood event in the Tiber River. / Tauro, F.; Olivieri, G.; Petroselli, A.; Porfiri, Maurizio; Grimaldi, S.

In: Environmental Monitoring and Assessment, Vol. 188, No. 2, 01.02.2016, p. 118.

Research output: Contribution to journalArticle

Tauro, F. ; Olivieri, G. ; Petroselli, A. ; Porfiri, Maurizio ; Grimaldi, S. / Flow monitoring with a camera : a case study on a flood event in the Tiber River. In: Environmental Monitoring and Assessment. 2016 ; Vol. 188, No. 2. pp. 118.
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