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Abstract <p>Greenhouse gas measurement is a fundamental and crucial part of environmental monitoring. The most accurate and complex method for estimating greenhouse gas fluxes at the ecosystem level is the eddy covariance method. The basic equipment for this method includes a 3D ultrasonic anemometer and a fast gas analyzer. Laser and NDIR gas analyzers have the necessary accuracy and measurement frequency. These methods allow for the accurate measurement of the concentration of components in gas mixtures, including greenhouse gases, in the open atmosphere. The non-dispersive infrared spectroscopy technique enables the development of simple and reliable optical measurement systems. One such technique is the eddy covariance method, which utilizes non-dispersive spectroscopy to measure greenhouse gas levels. This method is highly accurate and can be used to monitor gas fluxes and emissions from various sources. This paper describes the design of a portable spectrometer based on non-dispersive infrared spectroscopy and presents the results of laboratory experiments measuring carbon dioxide levels.</p>

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Non-Dispersive IR Gas Analyzer for Monitoring H2O and CO2 Fluxes by Eddy Covariance Method

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • I. L. Fufurin,
  • Il. S. Golyak,
  • Ig. S. Golyak,
  • D. R. Anfimov,
  • I. B. Vintaykin,
  • P. P. Demkin,
  • Y. D. Karaulova,
  • M. S. Drozdov,
  • A. M. Yaroslavtsev,
  • I. A. Karpov,
  • A. P. Kosterova,
  • S. I. Svetlichnyi,
  • A. N. Morozov

摘要

Abstract

Greenhouse gas measurement is a fundamental and crucial part of environmental monitoring. The most accurate and complex method for estimating greenhouse gas fluxes at the ecosystem level is the eddy covariance method. The basic equipment for this method includes a 3D ultrasonic anemometer and a fast gas analyzer. Laser and NDIR gas analyzers have the necessary accuracy and measurement frequency. These methods allow for the accurate measurement of the concentration of components in gas mixtures, including greenhouse gases, in the open atmosphere. The non-dispersive infrared spectroscopy technique enables the development of simple and reliable optical measurement systems. One such technique is the eddy covariance method, which utilizes non-dispersive spectroscopy to measure greenhouse gas levels. This method is highly accurate and can be used to monitor gas fluxes and emissions from various sources. This paper describes the design of a portable spectrometer based on non-dispersive infrared spectroscopy and presents the results of laboratory experiments measuring carbon dioxide levels.