A5056950659- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Coal Properties and Utilization
- Air Quality Monitoring and Forecasting
- Methane Hydrates and Related Phenomena
- Vehicle emissions and performance
- Wind and Air Flow Studies
- Spectroscopy and Laser Applications
- Oil Spill Detection and Mitigation
- Atmospheric Ozone and Climate
- Air Quality and Health Impacts
- Meteorological Phenomena and Simulations
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Coal and Coke Industries Research
- Mining and Gasification Technologies
- Industrial and Mining Safety
- Oil, Gas, and Environmental Issues
- Reservoir Engineering and Simulation Methods
- Groundwater flow and contamination studies
- Maritime Transport Emissions and Efficiency
- Groundwater and Isotope Geochemistry
- Global Energy and Sustainability Research
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2018-2023
Abstract. A severe reduction of greenhouse gas emissions is necessary to reach the objectives Paris Agreement. The implementation and continuous evaluation mitigation measures requires regular independent information on two main anthropogenic gases, carbon dioxide (CO2) methane (CH4). Our aim employ an observation-based method determine regional-scale emission estimates with high accuracy. We use aircraft- ground-based in situ observations CH4, CO2, monoxide (CO), wind speed from research...
Abstract. Tunable laser direct absorption spectroscopy is a widely used technique for the in situ sensing of atmospheric composition. Aircraft deployment poses challenging operating environment instruments measuring climatologically relevant gases Earth's atmosphere. Here, we demonstrate successful adaption commercially available continuous wave quantum cascade (QCL) and interband (ICL) based spectrometer airborne trace gas measurements with local to regional focus. The instrument measures...
Abstract. Abundant mining and industrial activities located in the Upper Silesian Coal Basin (USCB) lead to large emissions of potent greenhouse gas (GHG) methane (CH4). The strong localization CH4 emitters (mostly confined known coal mine ventilation shafts) 448 720 kt yr−1 reported European Pollutant Release Transfer Register (E-PRTR 2017) Emissions Database for Global Atmospheric Research (EDGAR v4.3.2), respectively, make USCB a prime research target validating improving flux estimation...
Abstract In the last decade, much work has been done to better understand methane (CH 4 ) emissions from oil and gas (O&G) industry in United States. Ethane (C 2 H 6 ), a that is co‐emitted with thermogenic sources of CH , emitted US predominantly by O&G sector. this study, we perform an inverse analysis on 200 h atmospheric boundary layer C measurements estimate Measurements were collected 2017 2019 as part Atmospheric Carbon Transport (ACT) America aircraft campaign encompass...
Agricultural greenhouse gas (GHG) release is the most dominant anthropogenic emission sector of methane (CH4) and nitrous oxide (N2O), therefore contribute significantly to global warming. However, there are large uncertainties in both, top-down bottom-up estimates especially on regional scale. Process models have difficulties properly reproduce complexity underlying GHG formation processes. In addition, complicated measurement conditions, such as areas, strong temporal variability spatial...
Abstract. In September 2022, the METHANE-To-Go Africa (MTGA) scientific aircraft campaign, part of UNEP’s IMEO Methane Science Studies, conducted first CH₄ emissions measurements from offshore oil and gas sector in West Africa. This study provides independent empirical data on this previously unstudied region. Emissions Angolan facilities were quantified using an aircraft-based mass balance method, estimating total assessing 30 individual 10 facility groups. Our findings show consistent...
Abstract. Methane is the second most important greenhouse gas in terms of anthropogenic radiative forcing. Since pre-industrial times, globally averaged dry mole fraction methane atmosphere has increased considerably. Emissions from coal mining are one primary sources. However, our knowledge about different sources and sinks still subject to great uncertainties. Comprehensive measurement campaigns reliable chemistry–climate models, required fully understand global budget further develop...
Abstract The ACT‐America project is a NASA Earth Venture Suborbital‐2 mission designed to study the transport and fluxes of greenhouse gases. open freely available data sets provide airborne in situ measurements atmospheric carbon dioxide, methane, trace gases, aerosols, clouds, meteorological properties, remote sensing aerosol backscatter, boundary layer height columnar content tower‐based measurements, modeled mole fractions regional gases over Central Eastern United States. We conducted...
Abstract The densely farmed U.S. Midwest is a prominent source of nitrous oxide (N 2 O) but top‐down and bottom‐up N O emission estimates differ significantly. We quantify emissions by combining observations from the Atmospheric Carbon Transport‐America campaign with model simulations to scale Emissions Database for Global Research (EDGAR). In October 2017, we scaled agricultural EDGAR v4.3.2 v5.0 factors 6.3 3.5, respectively, resulting in 0.42 nmol m −2 s −1 emissions. June/July 2019,...
Abstract. Anthropogenic emissions are the primary source of increase in atmospheric methane (CH4) levels. However, estimates anthropogenic CH4 still show large uncertainties at global and regional scales. Differences isotopic signatures δ13C δ2H can help to constrain different contributions (e.g., fossil, waste, agriculture). The Upper Silesian Coal Basin (USCB) represents one largest European emission regions, with more than 500 Gg yr−1 released from 50 coal mine ventilation shafts,...
Abstract. A severe reduction of greenhouse gas emissions is necessary to reach the objectives Paris Agreement. The implementation and continuous evaluation mitigation measures requires regular independent information on two main anthropogenic gases, carbon dioxide (CO2) methane (CH4). Our aim employ an observation-based method determine regional-scale emission estimates with high accuracy. We use aircraft- ground-based in situ observations CH4, CO2, monoxide (CO), wind speed from research...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Science. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Atmospheric Carbon Transport – America (ACT-America) Datasets: Description, Management,...
Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Journal of Geophysical Research - Atmospheres. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Analysis Oil Gas Ethane Methane Emissions in Southcentral Eastern United States Using Four Seasons Continuous Aircraft...
Atmospheric methane (CH4) concentrations have more than doubled since the beginning of industrial age, making CH4 second most important anthropogenic greenhouse gas after carbon dioxide (CO2). The oil and (O&G) sectors are one major sources accounting for 22% global emissions. METHANE-To-Go Africa (MTGA) scientific aircraft campaign in September 2022 was conducted as part UNEP’s International Methane Emissions Observatory (IMEO). During campaign, we first large scale...
Abstract. Methane is the second most important greenhouse gas in terms of anthropogenic radiative forcing. Since pre-industrial times, globally averaged dry mole fraction methane atmosphere has increased considerably. Emissions from coal mining are one primary sources. However, our knowledge about different sources and sinks still subject to great uncertainties. Comprehensive measuring campaigns, as well reliable chemistry climate models, required fully understand global budget further...
<p>The Upper Silesian Coal Basin (USCB) represents one of the largest European CH<sub>4</sub> emission source regions, with a total sum 500 Gg CH<sub>4</sub>/a released by individual coal mine ventilation shafts. During CoMet (Carbon Dioxide and Methane Mission) campaign in late spring 2018, airborne in-situ measurements were carried out aboard DLR research aircraft Cessna Caravan. The was equipped cavity ring-down quantum...
Abstract. Abundant mining and industrial activities located in the Upper Silesian Coal Basin (USCB) lead to large emissions of potent greenhouse gas (GHG) methane (CH4). The strong localization CH4 emitters (mostly confined known coal mine ventilation shafts) 448/720 kt yr−1 reported European Pollutant Release Transfer Register (E-PRTR 2017) Emissions Database for Global Atmospheric Research (EDGAR v4.3.2) make USCB a prime research target validating improving flux estimation techniques....
<p>Emissions from fossil fuels are one of the primary sources atmospheric methane (CH<sub>4</sub>) growth. However, estimates anthropogenic CH<sub>4</sub> emissions still show large uncertainties on global and regional scales. Differences in isotopic source signatures δ<sup>13</sup>C δD can help to constrain different contributions (e.g. fossil, thermogenic, or...
Methane (CH4) is after carbon dioxide the second most important anthropogenic greenhouse gas. Due to its comparatively short lifetime of ~10 years, a significant reduction in CH4 emissions would help reduce atmospheric concentration within decade with near term temperature benefits. However, development efficient mitigation strategies needs be informed by identifying, locating and quantifying from different sectors. A large part global oil gas sector expected arise offshore production, which...
Abstract. Anthropogenic emissions are the primary source of atmospheric methane (CH4) growth. However, estimates anthropogenic CH4 still show large uncertainties on global and regional scales. Differences in isotopic signatures δ13C δ2H can help to constrain different contributions (e.g. fossil, waste, agriculture, etc.). The Upper Silesian Coal Basin (USCB) represents one largest European emission regions, with more than 500 Gg yr-1 released from 50 coal mine ventilation shafts other...
Abstract. Achieving an improved understanding of the anthropogenic influence on climate due to man made greenhouse gas emissions is major interest for global civilization. Sources, sinks and transport climatologically-relevant gases in Earth's atmosphere are still insufficiently understood, implying a fundamental need accurate, spatially temporally dense observations. Tunable diode laser absorption spectroscopy widely used technique situ sensing atmospheric composition. Mid-infrared...