1–20 of 24 hits
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    Large-Amplitude Mountain Waves in the Mesosphere Accompanying Weak Cross-Mountain Flow During DEEPWAVE Research Flight RF22

    Free access
    Fritts, David C. / Vosper, Simon B. / Williams, Bifford P. et al. | German Aerospace Center (DLR) | 2018
    and the German Aerospace Center Falcon. The measurements were obtained during Falcon flights FF9 and FF10 and GV Research Flight RF22 of the ...

    Magnetic Properties of Asteroid (162173) Ryugu

    Free access
    Hercik, D. / Auster, H-U. / Constantinescu, D. et al. | German Aerospace Center (DLR) | 2020
    Observations of the magnetization state of asteroids indicate diverse properties. Values between 1.9 × 10−6 Am2/kg (Eros) and 10−2Am2/kg ...

    Gravity-Wave-Driven Seasonal Variability of Temperature Differences Between ECMWF IFS and Rayleigh Lidar Measurements in the Lee of the Southern Andes

    Free access
    Gisinger, Sonja / Polichtchouk, Inna / Dörnbrack, Andreas et al. | German Aerospace Center (DLR) | 2022
    Long-term high-resolution temperature data of the Compact Rayleigh Autonomous Lidar (CORAL) is used to evaluate temperature and gravity ...

    Mesospheric Mountain Wave Activity in the Lee of the Southern Andes

    Free access
    Pautet, P.-D. / Taylor, M. / Fritts, David C. et al. | German Aerospace Center (DLR) | 2021
    during several recent observation campaigns, but many questions remain concerning their impacts on the upper atmosphere, and the effects of the ...

    Impact of parametrizing microphysical processes in the jet and vortex phase on contrail cirrus properties and radiative forcing

    Free access
    Bier, Andreas / Burkhardt, Ulrike | German Aerospace Center (DLR) | 2022
    impact on the properties and the life cycle of contrail cirrus. For current soot number emissions, ice nucleation is controlled by the number of ...

    Not all clear air turbulence is Kolmogorov - The fine-scale nature of atmospheric turbulence

    Free access
    Rodriguez Imazio, Paola / Mininni, Pablo / Godoy, Alejandro et al. | German Aerospace Center (DLR) | 2023
    We study a strong clear air turbulence (CAT) event experienced by the German High-Altitude Long-Range research aircraft (HALO) during the ...

    High-Cadence Lidar Observations of Middle Atmospheric Temperature and Gravity Waves at the Southern Andes Hot Spot

    Free access
    Reichert, Robert / Kaifler, Bernd / Kaifler, Natalie et al. | German Aerospace Center (DLR) | 2021
    . Exceptional wave events were observed in winter, resulting in temperature deviations from the monthly mean of 25K to 55K. GW potential energies show ...

    The idea of Space Weather – A historical perspective

    Kane, R.P. | Elsevier | 2006
    one to have introduced the term seems to be Thomas Gold of Harvard College Observatory, in a 1959 publication in the Journal of ...

    Reply to Comment on 'Nucleation of mesospheric cloud particles: Sensitivities and limits'

    Free access
    Wilms, Henrike / Rapp, Markus / Kirsch, Annekatrin | German Aerospace Center (DLR) | 2019
    The nucleation process of noctilucent clouds (NLCs) is not yet understood in detail. Furthermore, there seems to be disagreement on how the ...
    Keywords: Sensitivity of NLC

    Response of OH, O2 and OI5577 airglow emissions to the mesospheric bore in the equatorial region of Brazil

    Medeiros, A.F. / Fechine, J. / Buriti, R.A. et al. | Elsevier | 2005
    complementary effects suggested by Dewan and Picard [E.M. Dewan, R.H. Picard, Mesospheric bores. Journal of Geophysical Research 103, 6295–6305, 1998 ...

    Far‐Ranging Impact of Mountain Waves Excited Over Greenland on Stratospheric Dehydration and Rehydration

    Free access
    Kivi, Rigel / Dörnbrack, Andreas / Sprenger, Michael et al. | German Aerospace Center (DLR) | 2020
    In situ observations of reduced stratospheric water vapor combined with those of ice particle formation are rarely conducted. On the one ...

    High‐Resolution Aircraft Observations of Turbulence and Waves in the Free Atmosphere and Comparison With Global Model Predictions

    Free access
    Dörnbrack, Andreas / Bechtold, Peter / Schumann, Ulrich | German Aerospace Center (DLR) | 2022
    . Here we find a slightly better correlation of the CAT prediction with the HALO research aircraft observations compared to those of commercial ...

    On the formation of Io’s inner torus

    Cowee, M.M. / Wang, Y.-L. / Russell, C.T. et al. | Elsevier | 2005
    outer torus. The [Wang, Y.-L., Russell, C.T., Raeder, J. The Io mass loading disk: model calculations. Journal of Geophysical Research 106 ...

    Lidar observations of stratospheric gravity waves from 2011 to 2015 at McMurdo (77.84°S, 166.69°E), Antarctica: 1. Vertical wavelengths, periods, and frequency and vertical wave number spectra

    Free access
    Zhao, Jian / Chu, Xinzhao / Chen, Cao et al. | German Aerospace Center (DLR) | 2017
    Five years of atmospheric temperature data, collected with an Fe Boltzmann lidar by the University of Colorado group from 2011 to 2015 at ...

    Mapping and Interpretation of Sinlap Crater on Titan Using Cassini VIMS and Radar Data

    Free access
    Le Mouélic, Stephane / Paillou, Philippe / Janssen, Michael et al. | German Aerospace Center (DLR) | 2008

    Clear Air Turbulence Observed Across a Tropopause Fold Over the Drake Passage—A Case Study

    Free access
    Rodriguez Imazio, Paola / Dörnbrack, Andreas / Urzua, Rodrigo Delgado et al. | German Aerospace Center (DLR) | 2022
    profiles of a near-simultaneous radiosonde profile and numerical results from global and regional numerical weather prediction (NWP) models ...

    Mesospheric temperature during the extreme mid-latitude noctilucent cloud event on 18/19 July 2016

    Free access
    Kaifler, Natalie / Kaifler, Bernd / Wilms, Henrike et al. | German Aerospace Center (DLR) | 2018
    CORAL Rayleigh lidar. Strong southward winds due to a quasi 2-day planetary wave allowed for the influx of mesospheric polar air to mid ...

    Secondary Gravity Waves Generated by Breaking Mountain Waves Over Europe

    Free access
    Heale, Chistopher J. / Bossert, K. / Vadas, S. L. et al. | German Aerospace Center (DLR) | 2020
    representing opposite tidal phases. The aim of the simulation is to investigate the breaking of the mountain wave and subsequent generation of ...

    Variability in Contrail Ice Nucleation and Its Dependence on Soot Number Emissions

    Free access
    Bier, Andreas / Burkhardt, Ulrike | German Aerospace Center (DLR) | 2019
    on microphysical processes, optical properties, lifetime, and, therefore, on the climate impact of contrail cirrus. We study contrail ice ...

    Does Strong Tropospheric Forcing Cause Large-Amplitude Mesospheric Gravity Waves? A DEEPWAVE Case Study

    Free access
    Bramberger, Martina / Dörnbrack, Andreas / Bossert, Katrina et al. | German Aerospace Center (DLR) | 2017
    On 4 July 2014, during the Deep Propagating Gravity Wave Experiment (DEEPWAVE), strong low-level horizontal winds of up to 35 m s−1 over ...