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    Academic Journals

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• Enhancing MAX-DOAS atmospheric state retrievals by multispectral polarimetry - studies using synthetic data.

  Authors:Jan-Lukas Tirpitz, Udo Frieß, Robert Spurr, and Ulrich PlattFrom:Atmospheric Measurement Techniques (Vol. 15, Issue 7) Peer-Reviewed

  Apr. 5, 2022406 words Brief article Ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) is a widely used measurement technique for the remote detection of atmospheric aerosol and trace gases. The technique relies on the analysis...

• Retrieval algorithm for OClO from TROPOMI (TROPOspheric Monitoring Instrument) by differential optical absorption spectroscopy.

  Authors:JÄnis PuÄ·Ä«te, Christian Borger, Steffen Dörner, Myojeong Gu, Udo Frieß, Andreas Carlos Meier, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 12) Peer-Reviewed

  Dec. 7, 2021247 words Brief article Here we present a new retrieval algorithm of the slant column densities (SCDs) of chlorine dioxide (OClO) by differential optical absorption spectroscopy (DOAS) from measurements performed by TROPOspheric Monitoring...

• Intercomparison of MAX-DOAS vertical profile retrieval algorithms: studies using synthetic data

  Authors:Udo Friess, Steffen Beirle, Leonardo Alvarado Bonilla, Tim Bosch, Martina M. Friedrich, Francois Hendrick, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 4) Peer-Reviewed

  Apr. 10, 201968 words Author abstract, Bri... Byline: Udo FrieÃ,Ÿ,, Steffen Beirle, Leonardo Alvarado Bonilla, Tim Bö,sch, Martina M. Friedrich, FranÃ,§,ois Hendrick, Ankie Piters, Andreas Richter, Michel van Roozendael, Vladimir V. Rozanov,...

• Validation of tropospheric NO.sub.2 column measurements of GOME-2A and OMI using MAX-DOAS and direct sun network observations.

  Authors:Gaia Pinardi, Michel Van Roozendael, François Hendrick, Nicolas Theys, Nader Abuhassan, Alkiviadis Bais, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 11) Peer-Reviewed

  Nov. 18, 2020261 words Brief article Multi-axis differential optical absorption spectroscopy (MAX-DOAS) and direct sun NO.sub.2 vertical column network data are used to investigate the accuracy of tropospheric NO.sub.2 column measurements of the GOME-2...

• Observation of halogen species in the Amundsen Gulf, Arctic, by active long-path differential optical absorption spectroscopy

  Authors:Denis Pohler, Leif Vogel, Udo Friess, and Ulrich PlattFrom:Proceedings of the National Academy of Sciences of the United States (Vol. 107, Issue 15) Peer-Reviewed

  Apr. 13, 2010229 words Author abstract, Rep...

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• Is a scaling factor required to obtain closure between measured and modelled atmospheric O.sub.4 absorptions? An assessment of uncertainties of measurements and radiative transfer simulations for 2 selected days during the MAD-CAT campaign

  Authors:Thomas Wagner, Steffen Beirle, Nuria Benavent, Tim Bosch, Ka Lok Chan, Sebastian Donner, et al.From:Atmospheric Measurement Techniques (Vol. 12, Issue 5) Peer-Reviewed

  May 14, 2019587 words Author abstract, Bri...

  In this study the consistency between MAX-DOAS measurements and radiative transfer simulations of the atmospheric O.sub.4 absorption is investigated on 2 mainly cloud-free days during the MAD-CAT campaign in Mainz,...

• Time-dependent 3D simulations of tropospheric ozone depletion events in the Arctic spring using the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem).

  Authors:Maximilian Herrmann, Holger Sihler, Udo Frieß, Thomas Wagner, Ulrich Platt, and Eva GutheilFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 10) Peer-Reviewed

  May 20, 2021345 words Brief article Tropospheric bromine release and ozone depletion events (ODEs) as they commonly occur in the Arctic spring are studied using a regional model based on the open-source software package Weather Research and Forecasting...

• Inter-comparison of MAX-DOAS measurements of tropospheric HONO slant column densities and vertical profiles during the CINDI-2 campaign.

  Authors:Yang Wang, Arnoud Apituley, Alkiviadis Bais, Steffen Beirle, Nuria Benavent, Alexander Borovski, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 9) Peer-Reviewed

  Sept. 29, 2020514 words Article We present the inter-comparison of delta slant column densities (SCDs) and vertical profiles of nitrous acid (HONO) derived from measurements of different multi-axis differential optical absorption spectroscopy...

• Concurrent multiaxis differential optical absorption spectroscopy system for the measurement of tropospheric nitrogen dioxide

  Authors:Roland J. Leigh, Gary K. Corlett, Udo Friess, and Paul S. MonksFrom:Applied Optics (Vol. 45, Issue 28) Peer-Reviewed

  Oct. 1, 2006133 words Author abstract 60L

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• Intercomparison of MAX-DOAS vertical profile retrieval algorithms: studies on field data from the CINDI-2 campaign.

  Authors:Jan-Lukas Tirpitz, Udo Frieß, François Hendrick, Carlos Alberti, Marc Allaart, Arnoud Apituley, et al.From:Atmospheric Measurement Techniques (Vol. 14, Issue 1) Peer-Reviewed

  Jan. 4, 2021593 words Article The second Cabauw Intercomparison of Nitrogen Dioxide measuring Instruments (CINDI-2) took place in Cabauw (the Netherlands) in September 2016 with the aim of assessing the consistency of multi-axis differential optical...

• Intercomparison of NO.sub.2, O.sub.4, O.sub.3 and HCHO slant column measurements by MAX-DOAS and zenith-sky UV-visible spectrometers during CINDI-2.

  Authors:Karin Kreher, Michel Van Roozendael, Francois Hendrick, Arnoud Apituley, Ermioni Dimitropoulou, Udo Frieß, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 5) Peer-Reviewed

  May 6, 2020443 words Article In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for a period of 17 d during the Second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring...