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Technical note: Fac...
Technical note: Facilitating the use of low-cost methane (CH4) sensors in flux chambers - calibration, data processing, and an open-source make-it-yourself logger
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- Bastviken, David (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Nygren, Jonatan (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Schenk, Jonathan (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Parellada Massana, Roser (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Nguyen, Thanh Duc (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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(creator_code:org_t)
- 2020-07-14
- 2020
- Engelska.
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Ingår i: Biogeosciences. - : COPERNICUS GESELLSCHAFT MBH. - 1726-4170 .- 1726-4189. ; 17:13, s. 3659-3667
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://bg.copernicu...
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https://urn.kb.se/re...
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https://doi.org/10.5...
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Abstract
Ämnesord
Stäng
- A major bottleneck regarding the efforts to better quantify greenhouse gas fluxes, map sources and sinks, and understand flux regulation is the shortage of low-cost and accurate-enough measurement methods. The studies of methane (CH4) - a long-lived greenhouse gas increasing rapidly but irregularly in the atmosphere for unclear reasons, and with poorly understood source-sink attribution - suffer from such method limitations. This study presents new calibration and data processing approaches for use of a low-cost CH4 sensor in flux chambers. Results show that the change in relative CH4 levels can be determined at rather high accuracy in the 2-700 ppm mole fraction range, with modest efforts of collecting reference samples in situ and without continuous access to expensive reference instruments. This opens possibilities for more affordable and time-effective measurements of CH4 in flux chambers. To facilitate such measurements, we also provide a description for building and using an Arduino logger for CH4, carbon dioxide (CO2), relative humidity, and temperature.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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