CarboCount CH
Quantifying greenhouse gas fluxes and their sensitivity to climate variations: A case study in Central Europe and Switzerland
Aim
CarboCount CH aims to develop a prototype modelling and observing system for CO2 and CH4 at the regional scale with the objective to quantify and understand CO2 and CH4 fluxes and their sensitivity to recent and current climate variability.
Approach
The approach is to integrate so-called “top-down”methods based on atmospheric measurements and models with "bottom-up" methods based on local (e.g. flux) measurements, process-based models of natural fluxes, and statistical information on anthropogenic emissions. The project will focus on central Europe and especially central Switzerland where
(i) there exists a strong basis for building a CO2/CH4 measurement network
(ii) rich and detailed data sets are available to provide input and independent verification, and
(iii) the heterogeneity of the region provides the challenge needed to test such a system.
Experimental Sites
Red circles are the new representative measurements sites with continuous measurements of CO2 and CH4 setup by CarboCount CH. Green and light green circles are existing sites of the Swiss FLUXNET network and the ETH research catchment Rietholzbach with open-path CO2 and H2O instruments. Blue circles are other existing sites with variable combinations of CH4 or CO2 with other measurements. None of these presently offers simultaneous observations of CO2 and CH4. NABEL is the Swiss air pollution monitoring network operated by Empa. NABEL plans to install in 2011 Picarro CO and CO2 analyzers at Payerne and Rigi. Jungfraujoch (JFJ) is a global station of the Global Atmospheric Watch network of WMO measuring virtually all GHGs (CO2, CH4, N2O, halocarbons, SF6) including continuous (1 Hz) measurements of 13C(CO2) and 18O(CO2).
Publications
2020
Gharun M, Hörtnagl L, Paul-Limoges E, Ghiasi S, Feigenwinter I, Burri S, Marquardt K, Etzold S, Zweifel R, Eugster W, Buchmann N (2020) Summer 2018 drought reduced forest and grassland productivity, but not at higher elevations in Switzerland. Philosophical Transactions of the Royal Society B 375: 20190521, doi: external page10.1098/rstb.2019.0521
2017
Bamberger I, Oney B, Brunner D, Henne S, Leuenberger M, Buchmann N, Eugster W (2017) Observation of atmospheric methane and carbon dioxide mixing ratios: Tall tower or mountain top stations? Boundary-Layer Meteorology 163: 135-159 doi: external page10.1007/s10546-017-0236-3
2016
Henne S, Brunner D, Oney B, Leuenberger M, Eugster W, Bamberger I, Meinhardt F, Steinbacher M, Emmenegger L (2016) Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling. Atmospheric Chemistry and Physics 16, 3683-3710 external pagedoi: 10.5194/acp-16-3683-2016
2015
Henne S, Brunner D, Oney B, Leuenberger M, Eugster W, Bamberger I, Meinhardt F, Steinabcher M, Emmenegger L (2015) Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling. Atmospheric Chemistry and Physics Discussions 15: 35417-35484 doi:external page10.5194/acpd-15-35417-2015
Kayler ZE, De Boeck HJ, Fatichi S, Grünzweig JM, Merbold L, McDowell N, Dukes JS: Experiments to Confront the Environmental Extremes of Climate Change (2015) Frontiers in Ecology and Evolution 13(4): 219–225 doi:external page10.1890/140174
Oney B, Henne S, Gruber N, Leuenberger M, Bamberger I, Eugster W, Brunner D, (2015) The CarboCount CH sites: characterization of a dense greenhouse gas observation network. Atmos. Chem. Phys. 15: 11147-11164, doi:external page10.5194/acp-15-11147-2015
Oney B, Henne S, Gruber N, Leuenberger M, Bamberger I, Eugster W, Brunner D (2015) TheCarboCount CH sites: characterization of a dense greenhouse gas observation network. Atmos. Chem. Phys. Discuss. 15: 12911-12956, doi:external page10.5194/acpd-15-12911-2015
Stieger J, Bamberger I, Buchmann N, Eugster W (2015) Validation of farm-scale methane emissions using nocturnal boundary layer budgets. Atmos. Chem. Phys. 15: 14055–14069 external pagedoi:10.5194/acp-15-14055-2015
Stieger J, Bamberger I, Buchmann N, Eugster W (2015) Validation of farm-scale methane emissions using nocturnal boundary layer budgets. Atmos. Chem. Phys. Discuss. 15: 21765-21802 doi:external page10.5194/acpd-15-21765-2015
2014
Bamberger, I., Stieger, J., Buchmann, N., Eugster, W. (2014) Spatial variability of methane: Attributing atmospheric concentrations to emissions. Environmental Pollution 190: 65-74 doi:external page10.1016/j.envpol.2014.03.028
Bamberger, I., Hörtnagl, L., Walser, M., Hansel, A., and Wohlfahrt, G. (2014) Gap-filling strategies for annual VOC flux data sets. Biogeosciences 11: 2429-2442 doi:external page10.5194/bg-11-2429-2014