Thin laser beam wandering and intensity fluctuations method for evapotranspiration measurement

Antonin Poisson; Angel Fernandez; Dario G. Perez; Regis Barille; Jean Charles Dupont

doi:10.1016/j.optlastec.2015.12.017

Thin laser beam wandering and intensity fluctuations method for evapotranspiration measurement

Antonin Poisson, Angel Fernandez, Dario G. Perez, Regis Barille, Jean Charles Dupont

INSTITUTE OF PHYSICS

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We compare in this study two simple optical setups to measure the atmospheric turbulence characterized by the refractive index structure parameter C_n². The corresponding heat flux values sensed by the laser beam propagation are calculated leading to the plant evapotranspiration. The results are discussed and compared to measurements obtained with a well-known and calibrated eddy-covariant instrument. A fine analysis gives a good insight of the accuracy of the optical devices proposed here to measure the crop evapotranspiration. Additional evapotranspiration values calculated with meteorological sensor data and the use of different models are also compared in parallel.

Original language	English
Pages (from-to)	33-40
Number of pages	8
Journal	Optics and Laser Technology
Volume	80
DOIs	https://doi.org/10.1016/j.optlastec.2015.12.017
State	Published - Jun 2016

Keywords

Atmospheric turbulence
Beam wandering
Evapotranspiration
Laser scintillation

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10.1016/j.optlastec.2015.12.017

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title = "Thin laser beam wandering and intensity fluctuations method for evapotranspiration measurement",

abstract = "We compare in this study two simple optical setups to measure the atmospheric turbulence characterized by the refractive index structure parameter Cn2. The corresponding heat flux values sensed by the laser beam propagation are calculated leading to the plant evapotranspiration. The results are discussed and compared to measurements obtained with a well-known and calibrated eddy-covariant instrument. A fine analysis gives a good insight of the accuracy of the optical devices proposed here to measure the crop evapotranspiration. Additional evapotranspiration values calculated with meteorological sensor data and the use of different models are also compared in parallel.",

keywords = "Atmospheric turbulence, Beam wandering, Evapotranspiration, Laser scintillation",

author = "Antonin Poisson and Angel Fernandez and Perez, {Dario G.} and Regis Barille and Dupont, {Jean Charles}",

year = "2016",

month = jun,

doi = "10.1016/j.optlastec.2015.12.017",

language = "English",

volume = "80",

pages = "33--40",

journal = "Optics and Laser Technology",

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T1 - Thin laser beam wandering and intensity fluctuations method for evapotranspiration measurement

AU - Poisson, Antonin

AU - Fernandez, Angel

AU - Perez, Dario G.

AU - Barille, Regis

AU - Dupont, Jean Charles

PY - 2016/6

Y1 - 2016/6

N2 - We compare in this study two simple optical setups to measure the atmospheric turbulence characterized by the refractive index structure parameter Cn2. The corresponding heat flux values sensed by the laser beam propagation are calculated leading to the plant evapotranspiration. The results are discussed and compared to measurements obtained with a well-known and calibrated eddy-covariant instrument. A fine analysis gives a good insight of the accuracy of the optical devices proposed here to measure the crop evapotranspiration. Additional evapotranspiration values calculated with meteorological sensor data and the use of different models are also compared in parallel.

AB - We compare in this study two simple optical setups to measure the atmospheric turbulence characterized by the refractive index structure parameter Cn2. The corresponding heat flux values sensed by the laser beam propagation are calculated leading to the plant evapotranspiration. The results are discussed and compared to measurements obtained with a well-known and calibrated eddy-covariant instrument. A fine analysis gives a good insight of the accuracy of the optical devices proposed here to measure the crop evapotranspiration. Additional evapotranspiration values calculated with meteorological sensor data and the use of different models are also compared in parallel.

KW - Atmospheric turbulence

KW - Beam wandering

KW - Evapotranspiration

KW - Laser scintillation

UR - http://www.scopus.com/inward/record.url?scp=84953790760&partnerID=8YFLogxK

U2 - 10.1016/j.optlastec.2015.12.017

DO - 10.1016/j.optlastec.2015.12.017

M3 - Article

AN - SCOPUS:84953790760

SN - 0030-3992

VL - 80

SP - 33

EP - 40

JO - Optics and Laser Technology

JF - Optics and Laser Technology

ER -

Thin laser beam wandering and intensity fluctuations method for evapotranspiration measurement

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Keywords

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