Andreas Plach
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View article: Reduction of Residence Time of Air in the Arctic Since the 1980s
Reduction of Residence Time of Air in the Arctic Since the 1980s Open
The Arctic has seen dramatic changes in recent decades. Here we use a simple metric, the Arctic residence time of air, that is, the time air spends uninterruptedly north of 70N, to evaluate how these changes have affected the high‐latitude…
View article: Quantifying European SF <sub>6</sub> emissions from 2005 to 2021 using a large inversion ensemble
Quantifying European SF <sub>6</sub> emissions from 2005 to 2021 using a large inversion ensemble Open
Sulfur hexafluoride (SF6) is a highly potent and long-lived greenhouse gas whose atmospheric concentrations are increasing due to human emissions. In this study, we determine European SF6 emissions from 2005 to 2021 using a large ensemble …
View article: LARA: a Lagrangian Reanalysis based on ERA5 spanning from 1940 to 2023
LARA: a Lagrangian Reanalysis based on ERA5 spanning from 1940 to 2023 Open
Meteorological reanalyses are crucial datasets in atmospheric research, providing the foundation for many scientific applications. However, most reanalyses follow a Eulerian framework, providing data at specific, fixed points in space and …
View article: Recent heavy metal pollution from the territory of the former Soviet Union (FSU): Ice core records and emission estimates
Recent heavy metal pollution from the territory of the former Soviet Union (FSU): Ice core records and emission estimates Open
Atmospheric heavy metal pollution from metal smelting, mining, and fossil fuel combustion poses a major threat to human health and the environment. Anthropogenic emissions from the territory of the former Soviet Union (FSU) considerably co…
View article: LARA: a Lagrangian Reanalysis based on ERA5 spanning from 1940 to 2023
LARA: a Lagrangian Reanalysis based on ERA5 spanning from 1940 to 2023 Open
Meteorological reanalyses are crucial datasets in atmospheric research, providing the foundation for many scientific applications. However, most reanalyses follow a Eulerian framework, providing data at specific, fixed points in space and …
View article: A thousand inversions to determine European SF <sub>6</sub> emissions from 2005 to 2021
A thousand inversions to determine European SF <sub>6</sub> emissions from 2005 to 2021 Open
We determine European emissions of sulfur hexafluoride (SF6) from 2005 to 2021 using a large ensemble of atmospheric inversions. To assess uncertainty, we systematically vary key inversion parameters across 986 sensitivity tests and apply …
View article: Exploring atmospheric transport into the Arctic 1940 to 2023 - A Lagrangian Perspective
Exploring atmospheric transport into the Arctic 1940 to 2023 - A Lagrangian Perspective Open
The Arctic is a key component of the Earth’s climate system and has received much attention in recent years due to it’s above-average warming (Arctic Amplification). Furthermore, we know that the Arctic is not a closed system, …
View article: Looking at air moving into the up area in the last two times four ten years - A move-with-parts look
Looking at air moving into the up area in the last two times four ten years - A move-with-parts look Open
Here we will look at how the air moves into the up area and how it’s moves have changed over the last two times four ten years. We know that the up area air is not alone, but it is a part of the whole sky air. We can see that in the …
View article: A new computer mirror for studying air moving through space and time
A new computer mirror for studying air moving through space and time Open
Computer mirrors are important for studying air. Most computer mirrors are about fixed points in space and time. This fixed approach is good for many studies, but studies focused on going through the air could use moving points in space an…
View article: Measurement Report: Changes in ammonia emissions since the 18th century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice-core record
Measurement Report: Changes in ammonia emissions since the 18th century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice-core record Open
Atmospheric ammonia (NH3) is a key transboundary air pollutant that contributes to the impacts of nitrogen and acidity on terrestrial ecosystems. Ammonia also contributes to the atmospheric aerosol that affects air quality. Emission invent…
View article: Pan-European atmospheric lead pollution, enhanced blood lead levels, and cognitive decline from Roman-era mining and smelting
Pan-European atmospheric lead pollution, enhanced blood lead levels, and cognitive decline from Roman-era mining and smelting Open
Ancient texts and archaeological evidence indicate substantial lead exposure during antiquity that potentially impacted human health. Although lead exposure routes were many and included the use of glazed tablewares, paints, cosmetics, and…
View article: A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF6 for the period 2005–2021
A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF6 for the period 2005–2021 Open
We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modelling. The inversion is based on 50 d backward simulations with the Lagrangian particle dispers…
View article: A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF <sub>6</sub> for the period 2005–2021
A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF <sub>6</sub> for the period 2005–2021 Open
We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modelling. The inversion is based on 50 d backward simulations with the Lagrangian particle dispers…
View article: FLEXPART version 11: improved accuracy, efficiency, and flexibility
FLEXPART version 11: improved accuracy, efficiency, and flexibility Open
Numerical methods and simulation codes are essential for the advancement of our understanding of complex atmospheric processes. As technology and computer hardware continue to evolve, the development of sophisticated code is vital for accu…
View article: Measurement Report: Changes of ammonia emissions since the 18 <sup>th</sup> century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice core record
Measurement Report: Changes of ammonia emissions since the 18 <sup>th</sup> century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice core record Open
To investigate the historical levels of atmospheric ammonia (NH3) pollution in south-eastern Europe, a 182 m long ice core was extracted from Mount Elbrus in the Caucasus, Russia. This ice core contains a record of ammonium (NH4+) levels f…
View article: FLEXPART version 11: Improved accuracy, efficiency, and flexibility
FLEXPART version 11: Improved accuracy, efficiency, and flexibility Open
Numerical methods and simulation codes are essential for the advancement of our understanding of complex atmospheric processes. As technology and computer hardware continue to evolve, the development of sophisticated code is vital for accu…
View article: Comment on egusphere-2024-811
Comment on egusphere-2024-811 Open
Abstract. We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modeling. The inversion is based on 50-day backward simulations with the Lagrangian Parti…
View article: Comment on egusphere-2024-811
Comment on egusphere-2024-811 Open
Abstract. We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modeling. The inversion is based on 50-day backward simulations with the Lagrangian Parti…
View article: A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF <sub>6</sub> for the period 2005–2021
A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF <sub>6</sub> for the period 2005–2021 Open
We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modeling. The inversion is based on 50-day backward simulations with the Lagrangian Particle Disper…
View article: FLEXPART-11: Advancements in a Lagrangian Atmospheric Model for Enhanced Accuracy, Efficiency, and Flexibility
FLEXPART-11: Advancements in a Lagrangian Atmospheric Model for Enhanced Accuracy, Efficiency, and Flexibility Open
Numerical methods and advanced simulation codes play a crucial role in helping us understand complex atmospheric processes. As technology progresses, it's important to develop sophisticated code for accurate and efficient simulations. In t…
View article: Evaluation of historical SO2 emissions based on an inversion of ice core records using atmospheric transport modeling
Evaluation of historical SO2 emissions based on an inversion of ice core records using atmospheric transport modeling Open
Sulfur dioxide (SO2) is an air pollutant which can have harmful effects on both human health and the environment. Furthermore, SO2 also contributes to climate change — SO2 emissions form sulfate aerosols that act as cloud condensatio…
View article: Pollen in Polar Ice Implies Eastern Canadian Forest Dynamics Diverged From Climate After European Settlement
Pollen in Polar Ice Implies Eastern Canadian Forest Dynamics Diverged From Climate After European Settlement Open
Rapid warming and human exploitation threaten boreal forests. Understanding links among vegetation, climate, and people in this vast biome requires highly resolved long‐term records that integrate regional inputs. We developed an 850‐year …
View article: Holocene black carbon in New Zealand lake sediment records
Holocene black carbon in New Zealand lake sediment records Open
Black carbon emitted from incomplete combustion of biomass and fossil fuel burning is an important aerosol; however, available long-term black carbon data are limited to remote polar and high-alpine ice cores from few geographic regions. B…
View article: A Two‐Fold Increase of Phosphorus in Alpine Ice Over the Twentieth Century: Contributions From Dust, Primary Biogenic Emissions, Coal Burning, and Pig Iron Production
A Two‐Fold Increase of Phosphorus in Alpine Ice Over the Twentieth Century: Contributions From Dust, Primary Biogenic Emissions, Coal Burning, and Pig Iron Production Open
Phosphorus (P) is a key nutrient for many organisms but its global atmospheric budget is largely unconstrained. Estimates of major emissions sources such as fossil‐fuel combustion range from ∼0.02 to 1.1 Tg yr −1 , and primary biogenic emi…
View article: Consistent histories of anthropogenic western European air pollution preserved in different Alpine ice cores
Consistent histories of anthropogenic western European air pollution preserved in different Alpine ice cores Open
Individual high-Alpine ice cores have been proven to contain a well-preserved history of past anthropogenic air pollution in western Europe. The question of how representative one ice core is with respect to the reconstruction of atmospher…
View article: Author's response to RC1 and RC2 on egusphere-2022-1019
Author's response to RC1 and RC2 on egusphere-2022-1019 Open
Abstract. The main research goal of this paper is to identify the most likely source regions of pollution events at Beromünster, Switzerland. Trace gas concentration and flux observations are essential to investigate emission source region…
View article: Lagrangian modeling used for improving ice core interpretation
Lagrangian modeling used for improving ice core interpretation Open
Atmospheric transport modeling with the Lagrangian Particle Dispersion Model (LPDM) FLEXPART has been used for the interpretation of ice core records in several studies in the recent past. Here we present (1) the methodology and results of…
View article: Recent heavy metal pollution from the territory of the former Soviet Union (FSU) – ice core records and emission estimates
Recent heavy metal pollution from the territory of the former Soviet Union (FSU) – ice core records and emission estimates Open
Atmospheric heavy metal pollution caused by metal smelting, mining, waste incineration and fossil fuel combustion presents a significant issue for human health and the environment. Anthropogenic emissions from the territory of the former S…