Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models

Gurney, K. R.; Law, R. M.; Denning, Scott; Rayner, P. J.; Baker, D. F.; Bousquet, Philippe; Bruhwiler, L.; Chen, Y.-H.; Ciais, Philippe; Fan, Shilei; Fung, Inez; Gloor, M.; Heimann, Martin; Higuchi, Kaz; John, Jasmin G.; Mäki, T.; Maksyutov, Shamil; Masarie, K. A.; Peylin, P.; Prather, Michael J.; Pak, Bernard; Randerson, James T.; Sarmiento, Jorge L.; Taguchi, Shoichi; Takahashi, Taro; Yuen, Chiu‐Wai

doi:10.1038/415626a

Cited by 1,202 publications

(1,456 citation statements)

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“…On yearly timescales, not all CO 2 emitted to the atmosphere by fossil fuel burning remains airborne: approximately 40-50% is taken up by natural oceanic or terrestrial sinks (Le Quéré et al, 2009). Inference of the strength and location of these natural sinks is the focus of many inverse studies (Gurney et al, 2002(Gurney et al, , 2004.…”

Section: Sources Of Co 2 Variationsmentioning

confidence: 99%

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Sources of variations in total column carbon dioxide

2011

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Abstract.Observations of gradients in the total CO 2 column, CO 2 , are expected to provide improved constraints on surface fluxes of CO 2 . Here we use a general circulation model with a variety of prescribed carbon fluxes to investigate how variations in CO 2 arise. On diurnal scales, variations are small and are forced by both local fluxes and advection. On seasonal scales, gradients are set by the north-south flux distribution. On synoptic scales, variations arise due to large-scale eddy-driven disturbances of the meridional gradient. In this case, because variations in CO 2 are tied to synoptic activity, significant correlations exist between CO 2 and dynamical tracers. We illustrate how such correlations can be used to describe the north-south gradients of CO 2 and the underlying fluxes on continental scales. These simulations suggest a novel analysis framework for using column observations in carbon cycle science.

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Section: Sources Of Co 2 Variationsmentioning

confidence: 99%

“…Inverse modeling represents one approach for estimating regional and global carbon fluxes from gradients in the observed concentration (or mixing ratio) of CO 2 , [CO 2 ] (Gurney et al, 2002(Gurney et al, , 2004.…”

Section: Introductionmentioning

confidence: 99%

Sources of variations in total column carbon dioxide

2011

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“…Fossil fuel CO 2 is the largest net annual input of CO 2 to the atmosphere, and these emissions are also a major component of the European carbon budget (Denning et al 1995;Gurney et al 2002). Therefore, we can assess the role of the continental biosphere as a net source or sink of carbon only if we are able to accurately separate fossil fuel CO 2 emissions from total CO 2 flux.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Fossil Fuel CO₂ Measurement Using a Field Unit in a Central European City During the Winter of 2008/09

et al. 2010

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ABSTRACT.A high-precision atmospheric CO 2 monitoring station was developed as a field unit. Within this, an integrating CO 2 sampling system was applied to collect samples for radiocarbon measurements. One sampler was installed in the second largest city of Hungary (Debrecen station) and 2 independent 14 CO 2 sampling lines were installed ~300 km from Debrecen in a rural site at Hegyhátsál station as independent background references, where high-precision atmospheric CO 2 mixing ratios have been measured since 1994. Fossil fuel CO 2 content in the air of the large Hungarian city of Debrecen was determined during the winter of 2008 using both the measurements of CO 2 mixing ratio and 14 C content of air. Fossil fuel CO 2 was significantly enhanced at Debrecen relative to the clean-air site at Hegyhátsál.

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“…A powerful tool to improve our knowledge of processes and rates of greenhouse gas (GHG) exchange between atmosphere and biosphere is inverse modelling [2]. Hereby, estimates of fluxes in a chemical transport model are adjusted to provide an improved fit to observations by minimizing the errors in the estimated emissions.…”

Section: Introductionmentioning

confidence: 99%

Investigations on frequency and energy references for a space-borne integrated path differential absorption lidar

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et al. 2017

International Conference on Space Optics — ICSO 2014

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Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models

Cited by 1,202 publications

References 25 publications

Sources of variations in total column carbon dioxide

Sources of variations in total column carbon dioxide

Atmospheric Fossil Fuel CO₂ Measurement Using a Field Unit in a Central European City During the Winter of 2008/09

Investigations on frequency and energy references for a space-borne integrated path differential absorption lidar

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Towards robust regional estimates of CO2 sources and sinks using atmospheric transport models

Cited by 1,202 publications

References 25 publications

Sources of variations in total column carbon dioxide

Sources of variations in total column carbon dioxide

Atmospheric Fossil Fuel CO2 Measurement Using a Field Unit in a Central European City During the Winter of 2008/09

Investigations on frequency and energy references for a space-borne integrated path differential absorption lidar

Contact Info

Product

Resources

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Atmospheric Fossil Fuel CO₂ Measurement Using a Field Unit in a Central European City During the Winter of 2008/09