A5067262349- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Climate variability and models
- Meteorological Phenomena and Simulations
- Atmospheric chemistry and aerosols
- Spectroscopy and Laser Applications
- Groundwater and Isotope Geochemistry
- Oceanographic and Atmospheric Processes
- Geophysics and Gravity Measurements
- Air Quality Monitoring and Forecasting
- Advanced Clustering Algorithms Research
- Scientific Computing and Data Management
- Data Management and Algorithms
- Marine and coastal ecosystems
- Advanced Data Storage Technologies
- Time Series Analysis and Forecasting
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Distributed and Parallel Computing Systems
- Advanced Chemical Sensor Technologies
- Anomaly Detection Techniques and Applications
- AI-based Problem Solving and Planning
- Coal Properties and Utilization
- Research Data Management Practices
- Environmental Monitoring and Data Management
Karlsruhe Institute of Technology
2016-2024
Université Côte d'Azur
2013
Technical University of Munich
2009
Abstract. The objective of this study is to derive methane (CH4) emissions from three landfills, which are found be the most significant CH4 sources in metropolitan area Madrid Spain. We enhancements observed by spaceborne and ground-based instruments. apply satellite-based measurements TROPOspheric Monitoring Instrument (TROPOMI) Infrared Atmospheric Sounding Interferometer (IASI) together with COllaborative Carbon Column Observing Network (COCCON) In 2018, a 2-week field campaign for...
Abstract. IASI (Infrared Atmospheric Sounding Interferometer) is the core instrument of currently three Metop (Meteorological operational) satellites EUMETSAT (European Organization for Exploitation Meteorological Satellites). The MUSICA processing has been developed in framework European Research Council project (MUlti-platform remote Sensing Isotopologues investigating Cycle water). processor performs an optimal estimation vertical distributions water vapour (H2O), ratio between two...
This paper describes the achievements of H2020 project INDIGO-DataCloud. The has provided e-infrastructures with tools, applications and cloud framework enhancements to manage demanding requirements scientific communities, either locally or through enhanced interfaces. middleware developed allows federate hybrid resources, easily write, port run cloud. In particular, we have extended existing PaaS (Platform as a Service) solutions, allowing public private e-infrastructures, including those...
Abstract. Volume mixing ratio water vapour profiles have been retrieved from IASI (Infrared Atmospheric Sounding Interferometer) spectra using the MUSICA (MUlti-platform remote Sensing of Isotopologues for investigating Cycle water) processor. The retrievals are done observations that coincide with Vaisala RS92 radiosonde measurements performed in framework GCOS (Global Climate Observing System) Reference Upper-Air Network (GRUAN) three different climate zones: tropics (Manus Island, 2° S),...
Abstract We present a Lagrangian framework for identifying mechanisms that control the isotopic composition of mid‐tropospheric water vapor in Sahel region during West African Monsoon 2016. In this mixing between contrasting air masses, strong convective activity, as well surface and rain evaporation lead to high variability distribution stable isotopologues. Using backward trajectories based on high‐resolution isotope‐enabled model data, we obtain information not only about source regions...
Abstract. Due to its dryness, the subtropical free troposphere plays a critical role in radiative balance of Earth's climate system. But complex interactions dynamical and physical processes controlling variability moisture budget this sensitive region atmosphere are still not fully understood. Stable water isotopes can provide important information about several latter processes, namely subsidence drying, turbulent mixing, dry moist convective moistening. In study, we use high-resolution...
Abstract. In early 2020, an international team set out to investigate trade-wind cumulus clouds and their coupling the large-scale circulation through field campaign EUREC4A: ElUcidating RolE of Clouds-Circulation Coupling in ClimAte. Focused on western tropical Atlantic near Barbados, EUREC4A deployed a number innovative observational strategies, including large network water isotopic measurements collectively known as EUREC4A-iso, study shallow convective environment. The goal was...
Abstract. This work presents the methane (CH4) and nitrous oxide (N2O) products as generated by IASI (Infrared Atmospheric Sounding Interferometer) processor developed during project MUSICA (MUlti-platform remote Sensing of Isotopologues for investigating Cycle water). The retrieves CH4 N2O with different water vapour isotopologues (as well HNO3) uses a single priori data set all retrievals (no variation in space time). Firstly, characteristics errors are analytically described. Secondly,...
Abstract. We present a global and multi-annual space-borne dataset of tropospheric {H2O, δD} pairs that is based on radiance measurements from the nadir thermal infrared sensor IASI (Infrared Atmospheric Sounding Interferometer) board Metop satellites EUMETSAT (European Organisation for Exploitation Meteorological Satellites). This an posteriori processed extension MUSICA (MUlti-platform remote Sensing Isotopologues investigating Cycle water) full product as presented in Schneider et al....
Abstract Recent satellite techniques have uncovered detailed tropospheric water vapor isotope patterns on a daily basis, yet the significance of isotopes weather forecasting has remained largely unknown. Here, we perform proof‐of‐concept observing system simulation experiment to show that mid‐tropospheric observed by Infrared Atmospheric Sounding Interferometer (IASI) can substantially improve forecasts through non‐local impacts convective heating structure and large‐scale circulation....
Abstract. This work employs ground- and space-based observations, together with model data, to study columnar abundances of atmospheric trace gases (XH2O, XCO2, XCH4 XCO) in two high-latitude Russian cities, St. Petersburg Yekaterinburg. Two portable COllaborative Column Carbon Observing Network (COCCON) spectrometers were used for continuous measurements at these locations during 2019 2020. Additionally, a subset data special interest (a strong gradient XCO was detected) collected the...
Abstract. The thermal infrared nadir spectra of IASI (Infrared Atmospheric Sounding Interferometer) are successfully used for retrievals different atmospheric trace gas profiles. However, these offer generally reduced information about the lowermost tropospheric layer due to lack contrast close surface. Spectra scattered solar radiation observed in near-infrared and/or shortwave infrared, instance by TROPOMI (TROPOspheric Monitoring Instrument), higher sensitivity near ground and retrieval...
Objectives/Goals: This research aims to modify an existing regulatory benchmarking framework, initially designed for medical products, assess cosmetic product regulations in different countries. tool will provide qualitative and quantitative comparisons of global approaches cosmetics. Methods/Study Population: The World Health Organization’s (GBT) was selected as a suitable template the adapted methodology. GBT contains comprehensive set functions, indicators, sub-indicators defining high...
Abstract. The thermal infrared nadir spectra of IASI (Infrared Atmospheric Sounding Interferometer) are successfully used for retrievals different atmospheric trace gas profiles. However, these offer generally reduced information about the lowermost tropospheric layer due to lack contrast close surface. Spectra scattered solar radiation observed in near and/or short wave infrared, instance by TROPOMI (TROPOspheric Monitoring Instrument) higher sensitivity ground and retrieval total column...
Abstract. In this paper, we compare column-averaged dry-air mole fractions of water vapor (XH2O) retrievals from the COllaborative Carbon Column Observing Network (COCCON) with two co-located high-resolution Fourier transform infrared (FTIR) spectrometers as references at boreal sites, Kiruna, Sweden, and Sodankylä, Finland, 6 March 2017 to 20 September 2019. framework for Detection Atmospheric Composition Change (NDACC), an FTIR spectrometer is operated Kiruna. The H2O product derived these...
Emerging challenged networks require new protocols and strategies to cope with a high degree of mobility, delays unknown, possibly non-existing routes within the network. Researchers have proposed different store-carry-and-forward for data delivery in networks. These been complemented appropriate drop scheduling policies that deal limitations nodes' buffers limited duration opportunistic encounters these Nevertheless, vast majority are designed end-to-end transmissions. Yet, paradigm shift...
Abstract. Intensive coal mining activities in the Upper Silesian Coal Basin (USCB) southern Poland are resulting large amounts of methane (CH4) emissions. Annual CH4 emissions reached 448 kt according to European Pollutant Release and Transfer Register (E-PRTR, 2017). As a emission hotspot Europe, it is importance investigate its sources make accurate estimates. In this study, we use satellite-based total column-averaged dry-air mole fraction (XCH4) from TROPOspheric Monitoring Instrument...
Abstract. IASI (Infrared Atmospheric Sounding Interferometer) is the core instrument of currently three Metop (Meteorological operational) satellites EUMETSAT (European Organization for Exploitation Meteorological Satellites). The MUSICA processing has been developed in framework European Research Council project (MUlti-platform remote Sensing Isotopologues investigating Cycle water). processor performs an optimal estimation vertical distributions water vapour (H2O), ratio between two...
Abstract. In early 2020, an international team set out to investigate trade wind cumulus and their coupling the large-scale circulation through field campaign EUREC4A: ElUcidating RolE of Clouds‐Circulation Coupling in ClimAte. Focused on western tropical Atlantic near Barbados, EUREC4A deployed a number innovative observational strategies, including large network water isotopic measurements, study shallow convective environment. The goal measurements was elucidate processes that regulate...
Abstract. The West African Monsoon (WAM) represents the main source of rainfall over Africa and thus has important socio-economic impacts. However, complex interactions large-scale circulation, convective dynamics microphysical processes pose a substantial challenge to reliably quantify atmospheric branches hydrological cycle in observations models. Making use recent advances retrieving isotopic composition tropospheric water vapour from space, we promote paired analysis H2O HDO investigate...
With the increasing acceptance of multiple authentication mechanisms, federated infrastructures need to provide means keeping consistency between user identities. Although current and authorization are designed support ways (SAML, OpenID Connect, X.509), they missing unified protocols interfaces harmonize This article introduces concept identity harmonization for cloud services. Our approach is based on standardized System Cross-domain Identity Management (SCIM) protocol. We add account...
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]A Lagrangian perspective on stable water isotopes during West African MonsoonAuthorsChristopher JohannesDiekmanniDMatthiasSchneideriDPeterKnippertziDAndries...