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20 Research products, page 1 of 2

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  • Atmospheric Measurement Techniques (AMT)

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  • Open Access English
    Authors: 
    Reum, Friedemann; Göckede, Mathias; Lavric, Jost V.; Kolle, Olaf; Zimov, Sergey; Zimov, Nikita; Pallandt, Martijn; Heimann, Martin;
    Project: EC | PAGE21 (282700), EC | PERCCOM (333796), EC | INTAROS (727890)

    Sparse data coverage in the Arctic hampers our understanding of its carbon cycle dynamics and our predictions of the fate of its vast carbon reservoirs in a changing climate. In this paper, we present accurate measurements of atmospheric carbon dioxide (CO2) and methane...

  • Open Access English
    Authors: 
    Sellitto, Pasquale; Guermazi, Henda; Carboni, Elisa; Siddans, Richard; Burton, Mike;
    Project: EC | STRATOCLIM (603557)

    We developed an optimal-estimation algorithm to simultaneously retrieve, for the first time, coexisting volcanic gaseous SO2 and sulfate aerosols (SA) from ground-based Fourier transform infrared (FTIR) observations. These effluents, both linked to magmatic degassing pr...

  • Open Access English
    Authors: 
    Bessardon, Geoffrey Elie Quentin; Fosu-Amankwah, Kwabena; Petersson, Anders; Brooks, Barbara Jane;
    Project: EC | DACCIWA (603502)

    Sparv Embedded, Sweden (http://windsond.com, last access: 22 February 2019), has answered the call for less expensive but accurate reusable radiosondes by producing a reusable sonde primarily intended for boundary-layer observations collection: the Windsond S1H2. To eva...

  • Open Access English
    Authors: 
    Reum, Friedemann; Gerbig, Christoph; Lavric, Jost V.; Rella, Chris W.; Göckede, Mathias;
    Project: EC | PAGE21 (282700), EC | PERCCOM (333796), EC | INTAROS (727890)

    Measurements of dry air mole fractions of atmospheric greenhouse gases are used in inverse models of atmospheric tracer transport to quantify their sources and sinks. The measurements have to be calibrated to a common scale to avoid bias in the inferred fluxes. For this...

  • Open Access English
    Authors: 
    Alam, Mohammed S.; Zeraati-Rezaei, Soheil; Liang, Zhirong; Stark, Christopher; Xu, Hongming; MacKenzie, A. Rob; Harrison, Roy M.;
    Project: EC | FASTER (320821)

    Airborne particles and vapours, like many other environmental samples including water, soils and sediments, contain complex mixtures of hydrocarbons, often deriving from crude oil either before or after fractionation into fuels, lubricants and feedstocks. Comprehensive ...

  • Open Access English
    Authors: 
    Bansmer, Stephan E.; Baumert, Arne; Sattler, Stephan; Knop, Inken; Leroy, Delphine; Schwarzenboeck, Alfons; Jurkat-Witschas, Tina; Voigt, Christiane; Pervier, Hugo; Esposito, Biagio;
    Project: EC | HAIC (314314)

    Beyond its physical importance in both fundamental and climate research, atmospheric icing is considered as a severe operational condition in many engineering applications like aviation, electrical power transmission and wind-energy production. To reproduce such icing c...

  • Open Access English
    Authors: 
    Tsekeri, Alexandra; Amiridis, Vassilis; Marenco, Franco; Nenes, Athanasios; Marinou, Eleni; Solomos, Stavros; Rosenberg, Phil; Trembath, Jamie; Nott, Graeme J.; Allan, James; +5 more
    Project: UKRI | An airborne dual ionisati... (NE/E018092/1), EC | ACTRIS-2 (654109), EC | EUFAR (227159), EC | BEYOND (316210)

    We present the In situ/Remote sensing aerosol Retrieval Algorithm (IRRA) that combines airborne in situ and lidar remote sensing data to retrieve vertical profiles of ambient aerosol optical, microphysical and hygroscopic properties, employing the ISORROPIA II model for...

  • Open Access English
    Authors: 
    Lorente, Alba; Folkert Boersma, K.; Yu, Huan; Dörner, Steffen; Hilboll, Andreas; Richter, Andreas; Liu, Mengyao; Lamsal, Lok N.; Barkley, Michael; Smedt, Isabelle; +10 more
    Project: EC | QA4ECV (607405)

    Air mass factor (AMF) calculation is the largest source of uncertainty in NO2 and HCHO satellite retrievals in situations with enhanced trace gas concentrations in the lower troposphere. Structural uncertainty arises when different retrieval methodologies are applied wi...

  • Open Access English
    Authors: 
    Fuchs, Hendrik; Novelli, Anna; Rolletter, Michael; Hofzumahaus, Andreas; Pfannerstill, Eva Y.; Kessel, Stephan; Edtbauer, Achim; Williams, Jonathan; Michoud, Vincent; Dusanter, Sebastien; +35 more
    Project: UKRI | Measurement of the OH che... (NE/D004756/1), ANR | Cappa (ANR-11-LABX-0005), NSF | Resolving Issues of Hydro... (1450838), EC | PIMMS (287382), EC | SARLEP (681529)

    Hydroxyl (OH) radical reactivity (kOH) has been measured for 18 years with different measurement techniques. In order to compare the performances of instruments deployed in the field, two campaigns were conducted performing experiments in the atmospheric simulation cham...

  • Open Access English
    Authors: 
    Langowski, Martin P.; Savigny, Christian; Burrows, John P.; Fussen, Didier; Dawkins, Erin C. M.; Feng, Wuhu; Plane, John M. C.; Marsh, Daniel R.;
    Project: EC | CODITA (291332), NSERC

    During the last decade, several limb sounding satellites have measured the global sodium (Na) number densities in the mesosphere and lower thermosphere (MLT). Datasets are now available from Global Ozone Monitoring by Occultation of Stars (GOMOS), the SCanning Imaging A...