Characterization of buoyant fluorescent particles for field observations ofwater flows

Flavia Tauro, Matteo Aureli, Maurizio Porfiri, Salvatore Grimaldi

Research output: Contribution to journalArticle

Abstract

In this paper, the feasibility of off-the-shelf buoyant fluorescent microspheres as particle tracers in turbid water flows is investigated. Microspheres' fluorescence intensity is experimentally measured and detected in placid aqueous suspensions of increasing concentrations of clay to simulate typical conditions occurring in natural drainage networks. Experiments are conducted in a broad range of clay concentrations and particle immersion depths by using photoconductive cells and image-based sensing technologies. Results obtained with both methodologies exhibit comparable trends and show that the considered particles are fairly detectable in critically turbid water flows. Further information on performance and integration of the studied microspheres in low-cost measurement instrumentation for field observations is obtained through experiments conducted in a custom built miniature water channel. This experimental characterization provides a first assessment of the feasibility of commercially available buoyant fluorescent beads in the analysis of high turbidity surface water flows. The proposed technology may serve as a minimally invasive sensing system for hazardous events, such as pollutant diffusion in natural streams and flash flooding due to extreme rainfall. copy; 2010 by the authors.

Original languageEnglish (US)
Pages (from-to)11512-11529
Number of pages18
JournalSensors (Switzerland)
Volume10
Issue number12
DOIs
StatePublished - Dec 2010

Fingerprint

water flow
Microspheres
clays
Water
photoconductive cells
Clay
Technology
Aquaporins
turbidity
Immersion
Turbidity
drainage
surface water
shelves
Surface waters
beads
submerging
Drainage
tracers
contaminants

Keywords

  • Fluorescent particles
  • Hillslope processes
  • Hydrologic tracers
  • Processing of sensed data
  • Sensors' applications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Characterization of buoyant fluorescent particles for field observations ofwater flows. / Tauro, Flavia; Aureli, Matteo; Porfiri, Maurizio; Grimaldi, Salvatore.

In: Sensors (Switzerland), Vol. 10, No. 12, 12.2010, p. 11512-11529.

Research output: Contribution to journalArticle

Tauro, Flavia ; Aureli, Matteo ; Porfiri, Maurizio ; Grimaldi, Salvatore. / Characterization of buoyant fluorescent particles for field observations ofwater flows. In: Sensors (Switzerland). 2010 ; Vol. 10, No. 12. pp. 11512-11529.
@article{37a9ac23362d4a889f98f03d3030b6c5,
title = "Characterization of buoyant fluorescent particles for field observations ofwater flows",
abstract = "In this paper, the feasibility of off-the-shelf buoyant fluorescent microspheres as particle tracers in turbid water flows is investigated. Microspheres' fluorescence intensity is experimentally measured and detected in placid aqueous suspensions of increasing concentrations of clay to simulate typical conditions occurring in natural drainage networks. Experiments are conducted in a broad range of clay concentrations and particle immersion depths by using photoconductive cells and image-based sensing technologies. Results obtained with both methodologies exhibit comparable trends and show that the considered particles are fairly detectable in critically turbid water flows. Further information on performance and integration of the studied microspheres in low-cost measurement instrumentation for field observations is obtained through experiments conducted in a custom built miniature water channel. This experimental characterization provides a first assessment of the feasibility of commercially available buoyant fluorescent beads in the analysis of high turbidity surface water flows. The proposed technology may serve as a minimally invasive sensing system for hazardous events, such as pollutant diffusion in natural streams and flash flooding due to extreme rainfall. copy; 2010 by the authors.",
keywords = "Fluorescent particles, Hillslope processes, Hydrologic tracers, Processing of sensed data, Sensors' applications",
author = "Flavia Tauro and Matteo Aureli and Maurizio Porfiri and Salvatore Grimaldi",
year = "2010",
month = "12",
doi = "10.3390/s101211512",
language = "English (US)",
volume = "10",
pages = "11512--11529",
journal = "Sensors",
issn = "1424-8220",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "12",

}

TY - JOUR

T1 - Characterization of buoyant fluorescent particles for field observations ofwater flows

AU - Tauro, Flavia

AU - Aureli, Matteo

AU - Porfiri, Maurizio

AU - Grimaldi, Salvatore

PY - 2010/12

Y1 - 2010/12

N2 - In this paper, the feasibility of off-the-shelf buoyant fluorescent microspheres as particle tracers in turbid water flows is investigated. Microspheres' fluorescence intensity is experimentally measured and detected in placid aqueous suspensions of increasing concentrations of clay to simulate typical conditions occurring in natural drainage networks. Experiments are conducted in a broad range of clay concentrations and particle immersion depths by using photoconductive cells and image-based sensing technologies. Results obtained with both methodologies exhibit comparable trends and show that the considered particles are fairly detectable in critically turbid water flows. Further information on performance and integration of the studied microspheres in low-cost measurement instrumentation for field observations is obtained through experiments conducted in a custom built miniature water channel. This experimental characterization provides a first assessment of the feasibility of commercially available buoyant fluorescent beads in the analysis of high turbidity surface water flows. The proposed technology may serve as a minimally invasive sensing system for hazardous events, such as pollutant diffusion in natural streams and flash flooding due to extreme rainfall. copy; 2010 by the authors.

AB - In this paper, the feasibility of off-the-shelf buoyant fluorescent microspheres as particle tracers in turbid water flows is investigated. Microspheres' fluorescence intensity is experimentally measured and detected in placid aqueous suspensions of increasing concentrations of clay to simulate typical conditions occurring in natural drainage networks. Experiments are conducted in a broad range of clay concentrations and particle immersion depths by using photoconductive cells and image-based sensing technologies. Results obtained with both methodologies exhibit comparable trends and show that the considered particles are fairly detectable in critically turbid water flows. Further information on performance and integration of the studied microspheres in low-cost measurement instrumentation for field observations is obtained through experiments conducted in a custom built miniature water channel. This experimental characterization provides a first assessment of the feasibility of commercially available buoyant fluorescent beads in the analysis of high turbidity surface water flows. The proposed technology may serve as a minimally invasive sensing system for hazardous events, such as pollutant diffusion in natural streams and flash flooding due to extreme rainfall. copy; 2010 by the authors.

KW - Fluorescent particles

KW - Hillslope processes

KW - Hydrologic tracers

KW - Processing of sensed data

KW - Sensors' applications

UR - http://www.scopus.com/inward/record.url?scp=79952221533&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952221533&partnerID=8YFLogxK

U2 - 10.3390/s101211512

DO - 10.3390/s101211512

M3 - Article

VL - 10

SP - 11512

EP - 11529

JO - Sensors

JF - Sensors

SN - 1424-8220

IS - 12

ER -