Validation and field application of a low-cost device to measure CO2 and evapotranspiration (ET) fluxes

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Abstract 2) fluxes and evapotranspiration (ET). Despite that, commercial systems to measure CO2 and ET fluxes are expensive and thus often exclude research in ecosystems within the Global South. This is especially true for research and data of agroecosystems in these areas, which are to date still widely underrepresented. Here, we present a newly developed low-cost, non-dispersive infrared (NDIR)-based CO2 and ET flux measurement device (∼ 2 and ET flux measurements in conjunction with manually operated closed chambers. To validate the system, laboratory and field validation experiments were performed, testing multiple different low-cost sensors. We demonstrate that the system delivers accurate and precise CO2 and ET flux measurements using the K30 FR NDIR (CO2) and SHT31 (RH, relative humidity) sensor. An additional field trial application demonstrated its longer-term stability (> 2 and ET flux measurement device not only provides reasonable results but also might help with democratizing science and closing current data gaps.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Validation and field application of a low-cost device to measure CO₂ and evapotranspiration (ET) fluxes ; volume:17 ; number:4 ; year:2024 ; pages:1317-1332 ; extent:16
Atmospheric measurement techniques ; 17, Heft 4 (2024), 1317-1332 (gesamt 16)

Creator: Macagga, Reena
Asante, Michael
Sossa, Geoffroy
Antonijević, Danica
Dubbert, Maren
Hoffmann, Mathias

DOI: 10.5194/amt-17-1317-2024

URN: urn:nbn:de:101:1-2024022903312410692930

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 10:58 AM CEST

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Macagga, Reena
Asante, Michael
Sossa, Geoffroy
Antonijević, Danica
Dubbert, Maren
Hoffmann, Mathias

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Validation and field application of a low-cost device to measure CO<sub>2</sub> and evapotranspiration (ET) fluxes

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Other Objects (12)

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Importance of the WPL correction for the measurement of small CO<sub>2</sub> fluxes

Oceanic CO<sub>2</sub> outgassing triggered by terrestrial organic carbon fluxes during deglacial flooding

Lower-cost eddy covariance for CO<sub>2</sub> and H<sub>2</sub>O fluxes over grassland and agroforestry

UAV Based In situ Measurements of CO<sub>2</sub> and CH<sub>4</sub> Fluxes over Complex Natural Ecosystems

Modeling the impact of drainage on peatland CO<sub>2</sub> and CH<sub>4</sub> fluxes and its underlying drivers

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Validation and field application of a low-cost device to measure CO<sub>2</sub> and ET fluxes

Dynamics of CO<sub>2</sub> and CH<sub>4</sub> fluxes in Red Sea mangrove soils

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A new estimate of oceanic CO<sub>2</sub> fluxes by machine learning reveals the impact of CO<sub>2</sub> trends in different methods

Simulating soil atmosphere exchanges and CO<sub>2</sub> fluxes for a restored peatland

Local oceanic CO<sub>2</sub> outgassing triggered by terrestrial carbon fluxes during deglacial flooding

Importance of the WPL correction for the measurement of small CO<sub>2</sub> fluxes

Oceanic CO<sub>2</sub> outgassing triggered by terrestrial organic carbon fluxes during deglacial flooding

Lower-cost eddy covariance for CO<sub>2</sub> and H<sub>2</sub>O fluxes over grassland and agroforestry

UAV Based In situ Measurements of CO<sub>2</sub> and CH<sub>4</sub> Fluxes over Complex Natural Ecosystems

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Eddy covariance fluxes of CO<sub>2</sub>, CH<sub>4</sub> and N<sub>2</sub>O on a drained peatland forest after clearcutting

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