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CarboScope CH4-Rn inversion results for Europe in 2021

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2021-01-01–2021-12-30
10.18160/HXMC-W51B (target, metadata)
11676/QKTW8mPqvMCRiKI1gm_jTPMy (link)

Daily methane (CH4) and radon-222 (222Rn) flux estimates for Europe in 2021, derived from the CarboScope-Regional inverse modelling framework. Given are the estimates of the single-tracer CH4-only and 222Rn-only inversions, as well as the dual-tracer CH4-222Rn inversion results. In the dual-tracer inversion, a 222Rn prior flux uncertainty of 30% was assumed for the European annual total flux. Please note that the resulting flux estimates are most reliable over central Europe, which is well covered by the observation sites used in this study. Flux estimates for other regions should be interpreted with caution due to limited observational constraint. For comparison, the prior fluxes used in the inversions are also provided. A detailed description of the prior flux components, including their references, is given in Maier et al. (2026) "Can radon help to improve methane emission estimates? Results from a dual-tracer inversion" (in discussion at Atmospheric Chemistry and Physics, https://doi.org/10.5194/egusphere-2026-739).

Accompanying data from the inversion study are available in Maier, F., Rödenbeck, C., Karstens, U., Koch, F., Gachkivskyi, M., Smerald, A., Gerbig, C. (2026). Ancillary data for "CarboScope CH4-Rn inversion results for Europe in 2021", 2021-01-01–2021-12-30, https://hdl.handle.net/11676/oEIawdZjOpjQdXFQC5_oDRRN .

2021-01-01 00:00:00
2021-12-31 00:00:00
Maier, F., Rödenbeck, C., Karstens, U., Koch, F.-T., Gachkivskyi, M., Smerald, A., Gerbig, C., 2026. CarboScope CH4-Rn inversion results for Europe in 2021. https://doi.org/10.18160/HXMC-W51B
BibTex
@misc{https://doi.org/10.18160/hxmc-w51b,
  doi = {10.18160/HXMC-W51B},
  url = {https://meta.icos-cp.eu/objects/QKTW8mPqvMCRiKI1gm_jTPMy},
  author = {Maier, Fabian and Rödenbeck, Christian and Karstens, Ute and Koch, Frank-Thomas and Gachkivskyi, Maksym and Smerald, Andrew and Gerbig, Christoph},
  keywords = {CH4 flux, CH4-Rn inversion, CarboScope, Rn flux, carbon flux, methane, radon},
  title = {CarboScope CH4-Rn inversion results for Europe in 2021},
  publisher = {ICOS ERIC - Carbon Portal},
  year = {2026},
  copyright = {Creative Commons Attribution 4.0 International}
}
RIS
TY  - DATA
T1  - CarboScope CH4-Rn inversion results for Europe in 2021
AU  - Maier, Fabian
AU  - Rödenbeck, Christian
AU  - Karstens, Ute
AU  - Koch, Frank-Thomas
AU  - Gachkivskyi, Maksym
AU  - Smerald, Andrew
AU  - Gerbig, Christoph
DO  - 10.18160/HXMC-W51B
UR  - https://meta.icos-cp.eu/objects/QKTW8mPqvMCRiKI1gm_jTPMy
AB  - Daily methane (CH4) and radon-222 (222Rn) flux estimates for Europe in 2021, derived from the CarboScope-Regional inverse modelling framework. Given are the estimates of the single-tracer CH4-only and 222Rn-only inversions, as well as the dual-tracer CH4-222Rn inversion results. In the dual-tracer inversion, a 222Rn prior flux uncertainty of 30% was assumed for the European annual total flux. Please note that the resulting flux estimates are most reliable over central Europe, which is well covered by the observation sites used in this study. Flux estimates for other regions should be interpreted with caution due to limited observational constraint. For comparison, the prior fluxes used in the inversions are also provided. A detailed description of the prior flux components, including their references, is given in Maier et al. (2026) "Can radon help to improve methane emission estimates? Results from a dual-tracer inversion" (in discussion at Atmospheric Chemistry and Physics, https://doi.org/10.5194/egusphere-2026-739).
KW  - CH4 flux
KW  - CH4-Rn inversion
KW  - CarboScope
KW  - Rn flux
KW  - carbon flux
KW  - methane
KW  - radon
PY  - 2026
PB  - ICOS ERIC - Carbon Portal
ER  -
CarboScope_CH4_Rn_inversion_Europe_2021.nc
353 MB (369732218 bytes)
3

Production

2026-03-06 09:17:00

Previewable variables

Name Value type Unit Quantity kind Preview
prior_ch4 methane (CH4) flux µmol m-2 s-1 particle flux Preview
prior_rn radon flux Bq m-2 s-1 radioactivity flux Preview
posterior_ch4_single methane (CH4) flux µmol m-2 s-1 particle flux Preview
posterior_rn_single radon flux Bq m-2 s-1 radioactivity flux Preview
posterior_ch4_dual methane (CH4) flux µmol m-2 s-1 particle flux Preview
posterior_rn_dual radon flux Bq m-2 s-1 radioactivity flux Preview

Statistics

6
46

Submission

2026-03-17 13:45:13
2026-03-17 13:44:59

Technical information

40a4d6f263eabcc09188a235826fe34cf3326511e881f4e6a2b8e0224fd319cb
QKTW8mPqvMCRiKI1gm/jTPMyZRHogfTmorjgIk/TGcs
S: 33, W: -15, N: 73, E: 35
CH4 flux CH4-Rn inversion CarboScope Rn flux carbon flux methane radon