Interactive comment on “ Comparison of four inverse modelling systems applied to the estimation of HFC - 125 , HFC - 134 a and SF 6 emissions over Europe ” by Dominik Brunner et al .
نویسنده
چکیده
The paper by Brunner et al. reports on the inverse estimation of hydrofluorocarbon (HFC) and SF6 emissions in Europe exploiting the respective atmospheric concentrations variability measured at three monitoring sites. Four state-of-the-art inverse modelling systems are compared with respect to their performance in modelling the observed concentrations and with respect to their consistency in inverting surface fluxes. The model-median emissions are then discussed for country-wide regions and compared to reported bottom-up inventories.
منابع مشابه
Thermodynamic Properties of HFC-32/HFC-125 Mixtures and an Estimation of Its Environmental Impact and Utility in Refrigeration
A cubic equation of state for HFC-32/HFC-125 mixtures developed on the basis of our experimental data was used for thermodynamic analysis of refrigeration cycles using this blend. The influence of composition changes on energy efficiency and Total Equivalent Warming Impact (TEWI) was studied. Comparisons of this blend with HCFC-22 and other alternative refrigerants were also carried out. Detail...
متن کاملAn analytical inversion method for determining regional and global emissions of greenhouse gases: Sensitivity studies and application to halocarbons
A new analytical inversion method has been developed to determine the regional and global emissions of long-lived atmospheric trace gases. It exploits in situ measurement data from three global networks and builds on backward simulations with a Lagrangian particle dispersion model. The emission information is extracted from the observed concentration increases over a baseline that is itself obj...
متن کاملRecent and future trends in synthetic greenhouse gas radiative forcing
Atmospheric measurements show that emissions of hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons are now the primary drivers of the positive growth in synthetic greenhouse gas (SGHG) radiative forcing. We infer recent SGHG emissions and examine the impact of future emissions scenarios, with a particular focus on proposals to reduce HFC use under the Montreal Protocol. If these proposals a...
متن کاملHFC - 23 ( CHF 3 ) emission trend response to HCFC - 22 ( CHClF 2 ) production and recent HFC - 23 emission abatement measures
HFC-23 (also known as CHF3, fluoroform or trifluoromethane) is a potent greenhouse gas (GHG), with a global warming potential (GWP) of 14 800 for a 100-year time horizon. It is an unavoidable by-product of HCFC22 (CHClF2, chlorodifluoromethane) production. HCFC22, an ozone depleting substance (ODS), is used extensively in commercial refrigeration and air conditioning, in the extruded polystyren...
متن کامل