Articles | Volume 14, issue 8
Atmos. Meas. Tech., 14, 5487–5500, 2021
https://doi.org/10.5194/amt-14-5487-2021
Atmos. Meas. Tech., 14, 5487–5500, 2021
https://doi.org/10.5194/amt-14-5487-2021
Research article
12 Aug 2021
Research article | 12 Aug 2021

The Berkeley Environmental Air-quality and CO2 Network: field calibrations of sensor temperature dependence and assessment of network scale CO2 accuracy

Erin R. Delaria et al.

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Cited articles

Andrews, A. E., Kofler, J. D., Trudeau, M. E., Williams, J. C., Neff, D. H., Masarie, K. A., Chao, D. Y., Kitzis, D. R., Novelli, P. C., Zhao, C. L., Dlugokencky, E. J., Lang, P. M., Crotwell, M. J., Fischer, M. L., Parker, M. J., Lee, J. T., Baumann, D. D., Desai, A. R., Stanier, C. O., De Wekker, S. F. J., Wolfe, D. E., Munger, J. W., and Tans, P. P.: CO2, CO, and CH4 measurements from tall towers in the NOAA Earth System Research Laboratory's Global Greenhouse Gas Reference Network: instrumentation, uncertainty analysis, and recommendations for future high-accuracy greenhouse gas monitoring efforts, Atmos. Meas. Tech., 7, 647–687, https://doi.org/10.5194/amt-7-647-2014, 2014. a
Bréon, F. M., Broquet, G., Puygrenier, V., Chevallier, F., Xueref-Remy, I., Ramonet, M., Dieudonné, E., Lopez, M., Schmidt, M., Perrussel, O., and Ciais, P.: An attempt at estimating Paris area CO2 emissions from atmospheric concentration measurements, Atmos. Chem. Phys., 15, 1707–1724, https://doi.org/10.5194/acp-15-1707-2015, 2015. a
Brondfield, M. N., Hutyra, L. R., Gately, C. K., Raciti, S. M., and Peterson, S. A.: Modeling and validation of on-road CO2 emissions inventories at the urban regional scale, Environ. Pollut., 170, 113–123, https://doi.org/10.1016/j.envpol.2012.06.003, 2012. a
Cohen Research: Berkeley Environmental Air-quality & CO2 Network (BEACO2N), University of California Berkeley, available at: http://beacon.berkeley.edu, last access: 9 August 2021. a
Coutts, A. M., Beringer, J., and Tapper, N. J.: Characteristics influencing the variability of urban CO2 fluxes in Melbourne, Australia, Atmos. Environ., 41, 51–62, https://doi.org/10.1016/j.atmosenv.2006.08.030, 2007. a, b
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Short summary
The use of a dense network of low-cost CO2 sensors is an attractive option for measuring CO2 emissions in cities. However, these low-cost sensors are also subject to uncertainties. Here, we describe a novel method of field calibration for correcting temperature-related errors in the CO2 sensors deployed in the BEACO2N network. We show that with this temperature correction, we can achieve a sufficiently low network error to allow for the evaluation of CO2 emissions at a neighborhood scale.