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    Academic Journals

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• Increasing formability in hole-flanging through the use of punch rotation based on temperature and strain rate dependent forming limit curves.

  Authors:Lemopi Isidore Besong, Johannes Buhl, and Markus BambachFrom:International Journal of Material Forming (Vol. 15, Issue 3) Peer-Reviewed

  May 2022297 words Report, Brief articl...

   Abstract Only

• Assimilating spaceborne lidar dust extinction can improve dust forecasts.

  Authors:Jerónimo Escribano, Enza Di Tomaso, Oriol Jorba, Martina Klose, Maria Gonçalves Ageitos, Francesca Macchia, et al.From:Atmospheric Chemistry and Physics (Vol. 22, Issue 1) Peer-Reviewed

  Jan. 14, 2022472 words Article Atmospheric mineral dust has a rich tri-dimensional spatial and temporal structure that is poorly constrained in forecasts and analyses when only column-integrated aerosol optical depth (AOD) is assimilated. At present,...

• Hemispheric contrasts in ice formation in stratiform mixed-phase clouds: disentangling the role of aerosol and dynamics with ground-based remote sensing.

  Authors:Martin Radenz, Johannes Bühl, Patric Seifert, Holger Baars, Ronny Engelmann, Boris Barja González, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 23) Peer-Reviewed

  Dec. 8, 2021360 words Brief article Multi-year ground-based remote-sensing datasets were acquired with the Leipzig Aerosol and Cloud Remote Observations System (LACROS) at three sites. A highly polluted central European site (Leipzig, Germany), a polluted...

• Wildfire smoke, Arctic haze, and aerosol effects on mixed-phase and cirrus clouds over the North Pole region during MOSAiC: an introduction.

  Authors:Ronny Engelmann, Albert Ansmann, Kevin Ohneiser, Hannes Griesche, Martin Radenz, Julian Hofer, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 17) Peer-Reviewed

  Sept. 9, 2021441 words Article An advanced multiwavelength polarization Raman lidar was operated aboard the icebreaker Polarstern during the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition to continuously...

• Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106.

  Authors:Hannes J. Griesche, Patric Seifert, Albert Ansmann, Holger Baars, Carola Barrientos Velasco, Johannes Bühl, et al.From:Atmospheric Measurement Techniques (Vol. 13, Issue 10) Peer-Reviewed

  Oct. 9, 2020382 words Brief article From 25 May to 21 July 2017, the research vessel Polarstern performed the cruise PS106 to the high Arctic in the region north and northeast of Svalbard. The mobile remote-sensing platform OCEANET was deployed aboard...

• Automated time-height-resolved air mass source attribution for profiling remote sensing applications.

  Authors:Martin Radenz, Patric Seifert, Holger Baars, Athena Augusta Floutsi, Zhenping Yin, and Johannes BühlFrom:Atmospheric Chemistry and Physics (Vol. 21, Issue 4) Peer-Reviewed

  Mar. 1, 2021281 words Brief article Height-resolved air mass source attribution is crucial for the evaluation of profiling ground-based remote sensing observations, especially when using lidar (light detection and ranging) to investigate different aerosol...

• The dual-field-of-view polarization lidar technique: a new concept in monitoring aerosol effects in liquid-water clouds - case studies.

  Authors:Cristofer Jimenez, Albert Ansmann, Ronny Engelmann, David Donovan, Aleksey Malinka, Patric Seifert, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 23) Peer-Reviewed

  Dec. 8, 2020379 words Brief article In a companion article (Jimenez et al., 2020), we introduced a new lidar method to derive microphysical properties of liquid-water clouds (cloud extinction coefficient, droplet effective radius, liquid-water content,...

• Smoke of extreme Australian bushfires observed in the stratosphere over Punta Arenas, Chile, in January 2020: optical thickness, lidar ratios, and depolarization ratios at 355 and 532 nm.

  Authors:Kevin Ohneiser, Albert Ansmann, Holger Baars, Patric Seifert, Boris Barja, Cristofer Jimenez, et al.From:Atmospheric Chemistry and Physics (Vol. 20, Issue 13) Peer-Reviewed

  July 10, 2020359 words Brief article We present particle optical properties of stratospheric smoke layers observed with multiwavelength polarization Raman lidar over Punta Arenas (53.2.sup."  S, 70.9.sup."  W), Chile, at the southernmost tip...

• Ice-nucleating particle versus ice crystal number concentrationin altocumulus and cirrus layers embedded in Saharan dust:a closure study.

  Authors:Albert Ansmann, Rodanthi-Elisavet Mamouri, Johannes Bühl, Patric Seifert, Ronny Engelmann, Julian Hofer, et al.From:Atmospheric Chemistry and Physics (Vol. 19, Issue 23) Peer-Reviewed

  Dec. 13, 2019492 words Article For the first time, a closure study of the relationship between the ice-nucleating particle concentration (INP; INPC) and ice crystal number concentration (ICNC) in altocumulus and cirrus layers, solely based on...

• Designing value through less by integrating sustainability strategies into lifestyles

  Authors:Christa Liedtke, Johannes Buhl, and Najine AmeliFrom:International Journal of Sustainable Design (Vol. 2, Issue 2) Peer-Reviewed

  Oct. 14, 2013149 words Author abstract, Rep...

   Abstract Only

• Measurement report: Balloon-borne in situ profiling of Saharan dust over Cyprus with the UCASS optical particle counter.

  Authors:Maria Kezoudi, Matthias Tesche, Helen Smith, Alexandra Tsekeri, Holger Baars, Maximilian Dollner, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 9) Peer-Reviewed

  May 5, 2021377 words Brief article This paper presents measurements of mineral dust concentration in the diameter range from 0.4 to 14.0 µm with a novel balloon-borne optical particle counter, the Universal Cloud and Aerosol Sounding System (UCASS). The...

• Aerosol particle depolarization ratio at 1565 nm measured with a Halo Doppler lidar.

  Authors:Ville Vakkari, Holger Baars, Stephanie Bohlmann, Johannes Bühl, Mika Komppula, Rodanthi-Elisavet Mamouri, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 8) Peer-Reviewed

  Apr. 19, 2021242 words Brief article The depolarization ratio is a valuable parameter for lidar-based aerosol categorization. Usually, the aerosol particle depolarization ratio is determined at relatively short wavelengths of 355 nm and/or 532 nm, but some...

• Ice crystal number concentration from lidar, cloud radar and radar wind profiler measurements.

  Authors:Johannes Bühl, Patric Seifert, Martin Radenz, Holger Baars, and Albert AnsmannFrom:Atmospheric Measurement Techniques (Vol. 12, Issue 12) Peer-Reviewed

  Dec. 13, 2019196 words Brief article A new method for the retrieval of ice crystal number concentration (ICNC) from combined active remote-sensing measurements of Raman lidar, cloud radar and radar wind profiler is presented. We exploit - for the first time...

• Influence of low-level blocking and turbulence on the microphysics of a mixed-phase cloud in an inner-Alpine valley.

  Authors:Fabiola Ramelli, Jan Henneberger, Robert O. David, Annika Lauber, Julie T. Pasquier, Jörg Wieder, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 6) Peer-Reviewed

  Apr. 1, 2021396 words Brief article Previous studies that investigated orographic precipitation have primarily focused on isolated mountain barriers. Here we investigate the influence of low-level blocking and shear-induced turbulence on the cloud...

• Combining cloud radar and radar wind profiler for a value added estimate of vertical air motion and particle terminal velocity within clouds

  Authors:Martin Radenz, Johannes Buhl, Volker Lehmann, Ulrich Gorsdorf, and Ronny LeinweberFrom:Atmospheric Measurement Techniques (Vol. 11, Issue 10) Peer-Reviewed

  Oct. 26, 2018210 words Author abstract, Bri...

  Vertical-stare observations from a 482 MHz radar wind profiler and a 35 GHz cloud radar are combined on the level of individual Doppler spectra to measure vertical air motions in clear air, clouds and precipitation....

• peakTree: a framework for structure-preserving radar Doppler spectra analysis

  Authors:Martin Radenz, Johannes Buhl, Patric Seifert, Hannes Griesche, and Ronny EngelmannFrom:Atmospheric Measurement Techniques (Vol. 12, Issue 9) Peer-Reviewed

  Sept. 10, 2019205 words Brief article, Case ...

  Clouds are frequently composed of more than one particle population even at the smallest scales. Cloud radar observations frequently contain information on multiple particle species in the observation volume when...

• Microphysical investigation of the seeder and feeder region of an Alpine mixed-phase cloud.

  Authors:Fabiola Ramelli, Jan Henneberger, Robert O. David, Johannes Bühl, Martin Radenz, Patric Seifert, et al.From:Atmospheric Chemistry and Physics (Vol. 21, Issue 9) Peer-Reviewed

  May 4, 2021362 words Brief article The seeder-feeder mechanism has been observed to enhance orographic precipitation in previous studies. However, the microphysical processes active in the seeder and feeder region are still being understood. In this...