Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system
In this paper, the performance of a low-cost and low-power methane (CH4) sensing system prototype based on a metal oxide sensor (MOS) sensitive to CH4 is tested in a natural CH4-emitting environment at the Greenland ice sheet (GrIS).We investigate if the MOS could be used as a supplementary measurem...
Published in: | Atmospheric Measurement Techniques |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/da/publications/continuous-methane-concentration-measurements-at-the-greenland-ice-sheetatmosphere-interface-using-a-lowcost-lowpower-metal-oxide-sensor-system(3621afc1-cb15-494e-9ac4-4a776bd3b34f).html https://doi.org/10.5194/amt-13-3319-2020 http://www.scopus.com/inward/record.url?scp=85087833706&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/3621afc1-cb15-494e-9ac4-4a776bd3b34f |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/3621afc1-cb15-494e-9ac4-4a776bd3b34f 2023-05-15T16:28:20+02:00 Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system Jørgensen, Christian Juncher Mønster, Jacob Fuglsang, Karsten Riis Christiansen, Jesper 2020-06 https://pure.au.dk/portal/da/publications/continuous-methane-concentration-measurements-at-the-greenland-ice-sheetatmosphere-interface-using-a-lowcost-lowpower-metal-oxide-sensor-system(3621afc1-cb15-494e-9ac4-4a776bd3b34f).html https://doi.org/10.5194/amt-13-3319-2020 http://www.scopus.com/inward/record.url?scp=85087833706&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Jørgensen , C J , Mønster , J , Fuglsang , K & Riis Christiansen , J 2020 , ' Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system ' , Atmospheric Measurement Techniques , vol. 13 , no. 6 , pp. 3319-3328 . https://doi.org/10.5194/amt-13-3319-2020 article 2020 ftuniaarhuspubl https://doi.org/10.5194/amt-13-3319-2020 2021-07-14T22:44:37Z In this paper, the performance of a low-cost and low-power methane (CH4) sensing system prototype based on a metal oxide sensor (MOS) sensitive to CH4 is tested in a natural CH4-emitting environment at the Greenland ice sheet (GrIS).We investigate if the MOS could be used as a supplementary measurement technique for monitoring CH4 emissions from the GrIS with the scope of setting up a CH4 monitoring network along the GrIS. The performance of the MOS is evaluated on the basis of simultaneous measurements using a cavity ring-down spectroscopy (CRDS) reference instrument for CH4 over a field calibration period of approximately 100 h. Results from the field calibration period show that CH4 concentrations measured with the MOS are in very good agreement with the reference CRDS. The absolute concentration difference between the MOS and the CRDS reference values within the measured concentration range of approximately 2-100 ppm CH4 was generally lower than 5 ppm CH4, while the relative concentration deviations between the MOS and the CRDS were generally below 10 %. The calculated root-mean-square error (RMSE) for the entire field calibration period was 1.69 ppm (n = 37140). The results confirm that low-cost and low-power MOSs can be effectively used for atmospheric CH4 measurements under stable water vapor conditions. The primary scientific importance of the study is that it provides a clear example of how the application of low-cost technology can enhance our future understanding on the climatic feedbacks from the cryosphere to the atmosphere. Article in Journal/Newspaper Greenland Ice Sheet Aarhus University: Research Greenland Atmospheric Measurement Techniques 13 6 3319 3328 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
In this paper, the performance of a low-cost and low-power methane (CH4) sensing system prototype based on a metal oxide sensor (MOS) sensitive to CH4 is tested in a natural CH4-emitting environment at the Greenland ice sheet (GrIS).We investigate if the MOS could be used as a supplementary measurement technique for monitoring CH4 emissions from the GrIS with the scope of setting up a CH4 monitoring network along the GrIS. The performance of the MOS is evaluated on the basis of simultaneous measurements using a cavity ring-down spectroscopy (CRDS) reference instrument for CH4 over a field calibration period of approximately 100 h. Results from the field calibration period show that CH4 concentrations measured with the MOS are in very good agreement with the reference CRDS. The absolute concentration difference between the MOS and the CRDS reference values within the measured concentration range of approximately 2-100 ppm CH4 was generally lower than 5 ppm CH4, while the relative concentration deviations between the MOS and the CRDS were generally below 10 %. The calculated root-mean-square error (RMSE) for the entire field calibration period was 1.69 ppm (n = 37140). The results confirm that low-cost and low-power MOSs can be effectively used for atmospheric CH4 measurements under stable water vapor conditions. The primary scientific importance of the study is that it provides a clear example of how the application of low-cost technology can enhance our future understanding on the climatic feedbacks from the cryosphere to the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Jørgensen, Christian Juncher Mønster, Jacob Fuglsang, Karsten Riis Christiansen, Jesper |
spellingShingle |
Jørgensen, Christian Juncher Mønster, Jacob Fuglsang, Karsten Riis Christiansen, Jesper Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
author_facet |
Jørgensen, Christian Juncher Mønster, Jacob Fuglsang, Karsten Riis Christiansen, Jesper |
author_sort |
Jørgensen, Christian Juncher |
title |
Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
title_short |
Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
title_full |
Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
title_fullStr |
Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
title_full_unstemmed |
Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
title_sort |
continuous methane concentration measurements at the greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system |
publishDate |
2020 |
url |
https://pure.au.dk/portal/da/publications/continuous-methane-concentration-measurements-at-the-greenland-ice-sheetatmosphere-interface-using-a-lowcost-lowpower-metal-oxide-sensor-system(3621afc1-cb15-494e-9ac4-4a776bd3b34f).html https://doi.org/10.5194/amt-13-3319-2020 http://www.scopus.com/inward/record.url?scp=85087833706&partnerID=8YFLogxK |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Jørgensen , C J , Mønster , J , Fuglsang , K & Riis Christiansen , J 2020 , ' Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system ' , Atmospheric Measurement Techniques , vol. 13 , no. 6 , pp. 3319-3328 . https://doi.org/10.5194/amt-13-3319-2020 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/amt-13-3319-2020 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
13 |
container_issue |
6 |
container_start_page |
3319 |
op_container_end_page |
3328 |
_version_ |
1766017979707817984 |