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AMT | Articles | Volume 13, issue 6
Atmos. Meas. Tech., 13, 3319–3328, 2020
https://doi.org/10.5194/amt-13-3319-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 13, 3319–3328, 2020
https://doi.org/10.5194/amt-13-3319-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 22 Jun 2020

Research article | 22 Jun 2020

Continuous methane concentration measurements at the Greenland ice sheet–atmosphere interface using a low-cost, low-power metal oxide sensor system

Christian Juncher Jørgensen et al.

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Cited articles

Bastviken, D., Nygren, J., Schenk, J., Parellada Massana, R., and Duc, N. T.: 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, Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-499, in review, 2020. 
Brannon, E. Q., Moseman-valtierra, S. M., Rella, C. W., Martin, R. M., Chen, X., and Tang, J.: Evaluation of laser-based spectrometers for greenhouse gas flux measurements in coastal marshes, Limnol. Oceanogr.-Meth., 14, 466–476, https://doi.org/10.1002/lom3.10105, 2016. 
Callaghan, T. V., Johansson, M., Key, J., Prowse, T., Ananicheva, M., and Klepikov, A.: Feedbacks and Interactions: From the Arctic Cryosphere to the Climate System, AMBIO, 40, 75–86, https://doi.org/10.1007/s13280-011-0215-8, 2011. 
Christiansen, J. R. and Jørgensen, C. J.: First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet, Scientific Reports, 8, 16623, https://doi.org/10.1038/s41598-018-35054-7, 2018. 
Emmerton, C. A., St. Louis, V. L., Lehnherr, I., Humphreys, E. R., Rydz, E., and Kosolofski, H. R.: The net exchange of methane with high Arctic landscapes during the summer growing season, Biogeosciences, 11, 3095–3106, https://doi.org/10.5194/bg-11-3095-2014, 2014. 
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Short summary
Recent discoveries have shown large emissions of methane (CH4) to the atmosphere from meltwater at the Greenland ice sheet (GrIS). Low-cost and low-power gas sensor technology offers great potential to supplement CH4 measurements using very expensive reference analyzers under harsh and remote conditions. In this paper we evaluate the in situ performance at the GrIS of a low-cost CH4 sensor to a state-of-the-art analyzer and find very excellent agreement between the two methods.
Recent discoveries have shown large emissions of methane (CH4) to the atmosphere from meltwater...
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