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    Academic Journals

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• Controlled-release experiment to investigate uncertainties in UAV-based emission quantification for methane point sources.

  Authors:Randulph Morales, Jonas Ravelid, Katarina Vinkovic, Piotr KorbeÅ, Béla Tuzson, Lukas Emmenegger, et al.From:Atmospheric Measurement Techniques (Vol. 15, Issue 7) Peer-Reviewed

  Apr. 11, 2022431 words Article Mapping trace gas emission plumes using in situ measurements from unmanned aerial vehicles (UAVs) is an emerging and attractive possibility to quantify emissions from localized sources. Here, we present the results of an...

• Swiss halocarbon emissions for 2019 to 2020 assessed from regional atmospheric observations.

  Authors:Dominique Rust, Ioannis Katharopoulos, Martin K. Vollmer, Stephan Henne, Simon O'Doherty, Daniel Say, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 4) Peer-Reviewed

  Feb. 23, 2022422 words Article Halocarbons contribute to global warming and stratospheric ozone depletion. They are emitted to the atmosphere by various anthropogenic activities. To determine Swiss national halocarbon emissions, we applied top-down...

• A compact QCL spectrometer for mobile, high-precision methane sensing aboard drones.

  Authors:Béla Tuzson, Manuel Graf, Jonas Ravelid, Philipp Scheidegger, André Kupferschmid, Herbert Looser, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 9) Peer-Reviewed

  Sept. 7, 2020241 words Brief article A compact and lightweight mid-infrared laser absorption spectrometer has been developed as a mobile sensing platform for high-precision atmospheric methane measurements aboard small unmanned aerial vehicles (UAVs). The...

• Recent advances in measurement techniques for atmospheric carbon monoxide and nitrous oxide observations.

  Authors:Christoph Zellweger, Rainer Steinbrecher, Olivier Laurent, Haeyoung Lee, Sumin Kim, Lukas Emmenegger, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 11) Peer-Reviewed

  Nov. 8, 2019283 words Brief article

  Carbon monoxide (CO) and nitrous oxide (N.sub.2 O) are two key parameters in the observation of the atmosphere, relevant to air quality and climate change, respectively. For CO, various analytical techniques have been...

• Assessment of recent advances in measurement techniques for atmospheric carbon dioxide and methane observations

  Authors:Christoph Zellweger, Lukas Emmenegger, Mohd Firdaus, Juha Hatakka, Martin Heimann, Elena Kozlova, et al.From:Atmospheric Measurement Techniques (Vol. 9, Issue 9) Peer-Reviewed

  Sept. 26, 2016228 words Brief article Until recently, atmospheric carbon dioxide (CO.sub.2) and methane (CH.sub.4) measurements were made almost exclusively using nondispersive infrared (NDIR) absorption and gas chromatography with flame ionisation...

• Mid-IR spectrometer for mobile, real-time urban NO.sub.2 measurements

  Authors:P. Morten Hundt, Markus Mangold, Philipp Scheidegger, Herbert Looser, and Lukas EmmeneggerFrom:Atmospheric Measurement Techniques (Vol. 11, Issue 5) Peer-Reviewed

  May 7, 2018391 words Author abstract, Bri... Detailed knowledge about the urban NO.sub.2 concentration field is a key element for obtaining accurate pollution maps and individual exposure estimates. These are required for improving the understanding of...

• Attribution of N.sub.2O sources in a grassland soil with laser spectroscopy based isotopocule analysis

  Authors:Erkan Ibraim, Benjamin Wolf, Eliza Harris, Rainer Gasche, Jing Wei, Longfei Yu, et al.From:Biogeosciences (Vol. 16, Issue 16) Peer-Reviewed

  Aug. 29, 2019479 words Author abstract, Bri...

  Nitrous oxide (N.sub.2 O) is the primary atmospheric constituent involved in stratospheric ozone depletion and contributes strongly to changes in the climate system through a positive radiative forcing mechanism. The...

• In situ observations of the isotopic composition of methane at the Cabauw tall tower site

  Authors:Simon Eyer, Carina van der Veen, Maria E. Popa, Guillaume Monteil, Sander Houweling, Eliza Harris, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 16) Peer-Reviewed

  Aug. 19, 2016355 words Brief article High-precision analyses of the isotopic composition of methane in ambient air can potentially be used to discriminate between different source categories. Due to the complexity of isotope ratio measurements, such...

• PathfinderTURB: an automatic boundary layer algorithm. Development, validation and application to study the impact on in situ measurements at the Jungfraujoch

  Authors:Yann Poltera, Giovanni Martucci, Martine Collaud Coen, Maxime Hervo, Lukas Emmenegger, Stephan Henne, et al.From:Atmospheric Chemistry and Physics (Vol. 17, Issue 16) Peer-Reviewed

  Aug. 28, 2017396 words Author abstract, Bri... We present the development of the PathfinderTURB algorithm for the analysis of ceilometer backscatter data and the real-time detection of the vertical structure of the planetary boundary layer. Two aerosol layer heights...

• The isotopic composition of atmospheric nitrous oxide observed at the high-altitude research station Jungfraujoch, Switzerland.

  Authors:Longfei Yu, Eliza Harris, Stephan Henne, Sarah Eggleston, Martin Steinbacher, Lukas Emmenegger, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 11) Peer-Reviewed

  June 5, 2020442 words Article Atmospheric nitrous oxide (N.sub.2 O) levels have been continuously growing since preindustrial times. Mitigation requires information about sources and sinks on the regional and global scales. Isotopic composition of...

• Highly selective volatile organic compounds breath analysis using a broadly-tunable vertical-external-cavity surface-emitting laser

  Authors:Bela Tuzson, Jana Jagerska, Herbert Looser, Manuel Graf, Matthias Fill, Ferdinand Felder, et al.From:Analytical Chemistry (Vol. 89, Issue 12) Peer-Reviewed

  June 20, 201781 words Report

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• Evaluation of equivalent black carbon source apportionment using observations from Switzerland between 2008 and 2018.

  Authors:Stuart K. Grange, Hanspeter Lötscher, Andrea Fischer, Lukas Emmenegger, and Christoph HueglinFrom:Atmospheric Measurement Techniques (Vol. 13, Issue 4) Peer-Reviewed

  Apr. 14, 2020352 words Brief article Black carbon (BC) or soot is a constituent of particulate matter (PM) which is relevant for negative human health and climate effects, and despite the lack of direct legal limits, it is recognised as an important...

• COVID-19 lockdowns highlight a risk of increasing ozone pollution in European urban areas.

  Authors:Stuart K. Grange, James D. Lee, Will S. Drysdale, Alastair C. Lewis, Christoph Hueglin, Lukas Emmenegger, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 5) Peer-Reviewed

  Mar. 18, 2021299 words Brief article In March 2020, non-pharmaceutical intervention measures in the form of lockdowns were applied across Europe to urgently reduce the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus...

• Highly sensitive and fast detection of propane - butane using a 3 micro m quantum cascade laser

  Authors:Jana Jagerska, Alfredo Bismuto, Jerome Faist, Heino Prinz, Lukas Emmenegger, Bela Tuzson, et al.From:Applied Optics (Vol. 52, Issue 19) Peer-Reviewed

  July 1, 2013123 words Author abstract

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• Integration and calibration of non-dispersive infrared (NDIR) CO.sub.2 low-cost sensors and their operation in a sensor network covering Switzerland.

  Authors:Michael Müller, Peter Graf, Jonas Meyer, Anastasia Pentina, Dominik Brunner, Fernando Perez-Cruz, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 7) Peer-Reviewed

  July 15, 2020278 words Brief article More than 300 non-dispersive infrared (NDIR) CO.sub.2 low-cost sensors labelled as LP8 were integrated into sensor units and evaluated for the purpose of long-term operation in the Carbosense CO.sub.2 sensor network in...

• Validation of the Swiss methane emission inventory by atmospheric observations and inverse modelling

  Authors:Stephan Henne, Dominik Brunner, Brian Oney, Markus Leuenberger, Werner Eugster, Ines Bamberger, et al.From:Atmospheric Chemistry and Physics (Vol. 16, Issue 6) Peer-Reviewed

  Mar. 21, 2016459 words Author abstract, Bri... Atmospheric inverse modelling has the potential to provide observation-based estimates of greenhouse gas emissions at the country scale, thereby allowing for an independent validation of national emission inventories....

• Light-induced redox cycling of iron in circumneutral lakes

  Authors:Lukas Emmenegger, Rene Schonenberger, Laura Sigg, and Barbara SulzbergerFrom:Limnology and Oceanography (Vol. 46, Issue 1) Peer-Reviewed

  Jan. 2001238 words Article

   Abstract Only

• Compact and lightweight mid-infrared laser spectrometer for balloon-borne water vapor measurements in the UTLS.

  Authors:Manuel Graf, Philipp Scheidegger, André Kupferschmid, Herbert Looser, Thomas Peter, Ruud Dirksen, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 2) Peer-Reviewed

  Feb. 22, 2021341 words Brief article We describe the development, characterization, and first field deployments of a quantum cascade laser direct absorption spectrometer (QCLAS) for water vapor measurements in the upper troposphere and lower stratosphere...

• High-precision laser spectrometer for multiple greenhouse gas analysis in 1 mL air from ice core samples.

  Authors:Bernhard Bereiter, Béla Tuzson, Philipp Scheidegger, André Kupferschmid, Herbert Looser, Lars Mächler, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 11) Peer-Reviewed

  Nov. 28, 2020352 words Brief article The record of past greenhouse gas composition from ice cores is crucial for our understanding of global climate change. Future ice core projects will aim to extend both the temporal coverage (extending the timescale to...