A new radiation infrastructure for the Modular Earth Submodel System (MESSy, based on version 2.51) [PDF]
Geoscientific Model Development, 2016 The Modular Earth Submodel System (MESSy) provides an interface to couple submodels to a base model via a highly flexible data management facility (Jöckel et al., 2010).
S. Dietmüller +10 more
doaj +1 more source
A technical description of the Balloon Lidar Experiment (BOLIDE) [PDF]
Atmospheric Measurement Techniques, 2020 The Balloon Lidar Experiment (BOLIDE) was the first high-power lidar flown and operated successfully on board a balloon platform. As part of the PMC Turbo payload, the instrument acquired high-resolution backscatter profiles of polar mesospheric clouds ...
B. Kaifler +5 more
doaj +1 more source
Evaluation of methods for gravity wave extraction from middle-atmospheric lidar temperature measurements [PDF]
Atmospheric Measurement Techniques, 2015 This study evaluates commonly used methods of extracting gravity-wave-induced temperature perturbations from lidar measurements. The spectral response of these methods is characterized with the help of a synthetic data set with known ...
B. Ehard +3 more
doaj +1 more source
Determining stages of cirrus evolution: a cloud classification scheme [PDF]
Atmospheric Measurement Techniques, 2017 Cirrus clouds impose high uncertainties on climate prediction, as knowledge on important processes is still incomplete. For instance it remains unclear how cloud microphysical and radiative properties change as the cirrus evolves. Recent studies classify
B. Urbanek +3 more
doaj +1 more source
Measurement report: In-flight and ground-based measurements of nitrogen oxide emissions from latest-generation jet engines and 100 % sustainable aviation fuel [PDF]
Atmospheric Chemistry and PhysicsNitrogen oxides, emitted from air traffic, are of concern due to their impact on climate by changing atmospheric ozone and methane levels. Using the DLR research aircraft Falcon, total reactive nitrogen (NOy) in-flight measurements were carried out at ...
T. Harlass +28 more
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An inconsistency in aviation emissions between CMIP5 and CMIP6 and the implications for short-lived species and their radiative forcing [PDF]
Geoscientific Model Development, 2023 We report on an inconsistency in the latitudinal distribution of aviation emissions between the data products of phases 5 and 6 of the Coupled Model Intercomparison Project (CMIP).
R. N. Thor +10 more
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Validation of the Aeolus L2B wind product with airborne wind lidar measurements in the polar North Atlantic region and in the tropics [PDF]
Atmospheric Measurement Techniques, 2022 During the first 3 years of the European Space Agency's Aeolus mission, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) performed four airborne campaigns deploying two different Doppler wind lidars (DWL) on board the DLR ...
B. Witschas +8 more
doaj +1 more source
Geophysical Research Letters, 2023 Horizontal wavenumber spectra across the middle atmosphere are investigated based on density measurements with the Airborne Lidar for Middle Atmosphere research (ALIMA) in the vicinity of the Southern Andes, the Drake passage and the Antarctic peninsula ...
Stefanie Knobloch +3 more
doaj +1 more source
COVID-19 induced lower-tropospheric ozone changes
Environmental Research Letters, 2021 The recent COVID-19 pandemic with its countermeasures, e.g. lock-downs, resulted in decreases in emissions of various trace gases. Here we investigate the changes of ozone over Europe associated with these emission reductions using a coupled global ...
Mariano Mertens +5 more
doaj +1 more source
Data assimilation of generic boundary layer flows for wind turbine applications – an LES study [PDF]
Wind Energy ScienceProviding date- and site-specific turbulent inflow fields for large-eddy simulations (LESs) of the flow through wind turbines becomes increasingly important for reliable estimates of power production.
L. Wrba +4 more
doaj +1 more source