Benjamin Birner
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View article: Surprising stability of recent global carbon cycling enables improved fossil fuel emission verification
Surprising stability of recent global carbon cycling enables improved fossil fuel emission verification Open
The interannual to decadal variability in natural carbon sinks limits the explanation of recent changes in atmospheric CO 2 concentration. Here we account for interannual and decadal variability using a simple quasi-mechanistic model of th…
View article: Short-term variability of atmospheric helium revealed through a cryo-enrichment method
Short-term variability of atmospheric helium revealed through a cryo-enrichment method Open
Tropospheric helium variations are tightly linked to CO2 due to the co-emission of He and CO2 from natural-gas burning. Recently, Birner et al. (2022a) showed that the global consumption of natural gas has measurably increased the He conte…
View article: The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to Intertropical Convergence Zone (ITCZ) movement through the last deglaciation
The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to Intertropical Convergence Zone (ITCZ) movement through the last deglaciation Open
Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure changes weakly disrupt gravitational isotopic se…
View article: Response to reviewers
Response to reviewers Open
Abstract. Tropospheric helium variations are tightly linked to CO2 due to the co-emission of He and CO2 from natural gas burning. Recently Birner et al. (2022) showed that the global consumption of natural gas has measurably increased the …
View article: Comment on cp-2022-65
Comment on cp-2022-65 Open
Abstract. Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure changes weakly disrupt gravitational i…
View article: Comment on cp-2022-65
Comment on cp-2022-65 Open
Abstract. Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure changes weakly disrupt gravitational i…
View article: Using the atmospheric <scp>CO<sub>2</sub></scp> growth rate to constrain the <scp>CO<sub>2</sub></scp> flux from land use and land cover change since 1900
Using the atmospheric <span>CO<sub>2</sub></span> growth rate to constrain the <span>CO<sub>2</sub></span> flux from land use and land cover change since 1900 Open
We explore the ability of the atmospheric CO 2 record since 1900 to constrain the source of CO 2 from land use and land cover change (hereafter “land use”), taking account of uncertainties in other terms in the global carbon budget. We fin…
View article: Comment on cp-2022-65
Comment on cp-2022-65 Open
Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure variability weakly disrupts gravitational isotop…
View article: Comment on amt-2022-242
Comment on amt-2022-242 Open
Abstract. Tropospheric helium variations are tightly linked to CO2 due to the co-emission of He and CO2 from natural gas burning. Recently Birner et al. (2022) showed that the global consumption of natural gas has measurably increased the …
View article: The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to ITCZ movement through the last deglaciation
The new Kr-86 excess ice core proxy for synoptic activity: West Antarctic storminess possibly linked to ITCZ movement through the last deglaciation Open
Here we present a newly developed ice core gas-phase proxy that directly samples a component of the large-scale atmospheric circulation: synoptic-scale pressure variability. Surface pressure variability weakly disrupts gravitational isotop…
View article: Short-term variability of atmospheric helium revealed through a cryo-enrichment method
Short-term variability of atmospheric helium revealed through a cryo-enrichment method Open
Tropospheric helium variations are tightly linked to CO2 due to the co-emission of He and CO2 from natural gas burning. Recently Birner et al. (2022) showed that the global consumption of natural gas has measurably increased the He content…
View article: A method for resolving changes in atmospheric He ∕ N <sub>2</sub> as an indicator of fossil fuel extraction and stratospheric circulation
A method for resolving changes in atmospheric He ∕ N <sub>2</sub> as an indicator of fossil fuel extraction and stratospheric circulation Open
The atmospheric He/N2 ratio is expected to increase due to the emission of He associated with fossil fuels and is expected to also vary in both space and time due to gravitational separation in the stratosphere. These signals may be useful…
View article: Increasing atmospheric helium from fossil fuel exploitation
Increasing atmospheric helium from fossil fuel exploitation Open
The authors have requested that this preprint be removed from Research Square.
View article: Gravitational separation of Ar∕N <sub>2</sub> and age of air in the lowermost stratosphere in airborne observations and a chemical transport model
Gravitational separation of Ar∕N <sub>2</sub> and age of air in the lowermost stratosphere in airborne observations and a chemical transport model Open
Accurate simulation of atmospheric circulation, particularly in the lower stratosphere, is challenging due to unresolved wave–mean flow interactions and limited high-resolution observations for validation. Gravity-induced pressure gradient…
View article: Measurements of atmospheric He/N <sub>2</sub> as an indicator of fossil fuel extraction and stratospheric circulation
Measurements of atmospheric He/N <sub>2</sub> as an indicator of fossil fuel extraction and stratospheric circulation Open
The atmospheric He/N2 ratio is expected to be increasing due to the emission of He associated with fossil fuels and is expected to also vary in both space and time due to gravitational separation in the stratosphere. These signals may be u…
View article: ATom: Age of Air, ArN2 Ratio, and Trace Gases in Stratospheric Samples, 2009-2018
ATom: Age of Air, ArN2 Ratio, and Trace Gases in Stratospheric Samples, 2009-2018 Open
This dataset provides calculated age of air (AoA) and the argon/nitrogen (Ar/N2) ratio (per meg) from stratospheric flask samples and simultaneous high-frequency measurements of nitrous oxide (N2O), carbon dioxide (CO2), ozone (O3), methan…
View article: Age of Air in the Stratosphere from Observations
Age of Air in the Stratosphere from Observations Open
<p>Age of air is an idealized tracer often used as a measure of the stratospheric circulation. We will show how to quantitatively relate age to the diabatic circulation and the adiabatic mixing. As it is an idealized tracer, age cann…
View article: Gravitational separation of Ar/N <sub>2</sub> and age of air in the lowermost stratosphere in airborne observations and a chemical transport model
Gravitational separation of Ar/N <sub>2</sub> and age of air in the lowermost stratosphere in airborne observations and a chemical transport model Open
Accurate simulation of atmospheric circulation, particularly in the lower stratosphere, is challenging due to unresolved wave-mean flow interactions and limited high-resolution observations for validation. Gravity-induced pressure gradient…
View article: Increasing Trend in Atmosphere Helium from 1975 to 2019
Increasing Trend in Atmosphere Helium from 1975 to 2019 Open
The release of crustal helium associated with global fossil fuel extraction is thought to increase atmospheric 4 He concentrations and thus reduce the atmospheric 3 He/ 4 He isotope ratio [1,2] .Early observational studies indeed found evi…
View article: Earth’s radiative imbalance from the Last Glacial Maximum to the present
Earth’s radiative imbalance from the Last Glacial Maximum to the present Open
Significance Earth’s radiative imbalance determines whether energy is flowing into or out of the ocean–atmosphere system. The present, anthropogenic, positive imbalance drives global warming. This study reconstructs the radiative imbalance…
View article: The influence of layering and barometric pumping on firn air transport in a 2-D model
The influence of layering and barometric pumping on firn air transport in a 2-D model Open
Ancient air trapped in ice core bubbles has been paramount to developing our understanding of past climate and atmospheric composition. Before air bubbles become isolated in ice, the atmospheric signal is altered in the firn column by tran…
View article: The influence of layering and barometric pumping on firn air transport in a 2D model
The influence of layering and barometric pumping on firn air transport in a 2D model Open
Ancient air trapped in ice core bubbles has been paramount to developing our understanding of past climate and atmospheric composition. Before air bubbles become isolated in ice, the atmospheric signal is altered in the firn column by tran…
View article: Supplementary material to "The influence of layering and barometric pumping on firn air transport in a 2D model"
Supplementary material to "The influence of layering and barometric pumping on firn air transport in a 2D model" Open
2D trace gas transport model 1.1 Numerical integration schemeTrace gas migration in firn is governed by the partial differential Eq. (S1):S1) where ≡ ∆ ⃑ , ≡ 1000 + 1 is the trace gas or isotope mixing ratio, ̃≡ exp ( M ) pressure-corrected …
View article: Stable isotope and Mg/Ca record of IODP Site 339-U1385
Stable isotope and Mg/Ca record of IODP Site 339-U1385 Open
Although millennial-scale climate variability (<10 ka) has been well studied during the last glacial cycles, little is known about this important aspect of climate in the early Pleistocene, prior to the Middle Pleistocene Transition. Here …