Abstracts

See attached file

See attached file

<p>A robust result of climate model simulations is the moistening of the stratosphere.<br>Many models show their strongest changes in stratospheric water vapor in the extratropical lowermost stratosphere, a change which could have substantial climate feedbacks (e.g. Banerjee et al [...]

<p>To improve our knowledge of the coupling of atmospheric circulation, composition and regional climate change, and to provide the urgently needed observations of the on-going changes and processes involved, we have recently proposed the Changing-Atmosphere Infra-Red Tomography Explorer (CAIRT) to ESA as Earth Explorer 11 candidate. CAIRT will be the first limb-sounder with imaging Fourier-transform infrared technology in space [...]

<p>We present trace gas measurements obtained by the airborne imaging limb sounder GLORIA&#160;(Gimballed Limb Observer for Radiance Imaging of the Atmosphere) that has been operated onboard the German HALO (High Altitude and Long Range) research aircraft above the South Atlantic during the SouthTRAC campaign between September and November 2019. We show retrieval results as two-dimensional trace-gas distributions derived from GLORIA observations in the UTLS (Upper Troposphere Lower Stratosphere) region above South America and the Atlantic Ocean [...]

Proximity effects in superconductor(S)/ferromagnet(F) heterostructures with perpendicular magnetic anisotropy can manifest in various forms such as domain-wall-superconductivity [1] and the generation of long-ranged spin-triplet Cooper pairs [2]. Understanding the origin of such phenomena is the key for an application in fluxonic devices and in spintronics, respectively [3, 4]. [...]

Topological quantum materials have attracted enormous attention since their discovery due to the observed anomalous transport effects (ATE), which originate from the non-zero Berry curvature. Mn3Ge has gained special attention because anomalous transport effects can be studied below the Néel temperature (365 K), down to 2 K [1]. [...]

<p>Chlorinated very short-lived substances (Cl-VSLS) are not controlled by the Montreal Protocol but the recent emission increase of the Cl-VSLS CH₂Cl₂ (Dichloromethane) and CHCl₃ (Chloroform) is believed to significantly increase the stratospheric chlorine loading from VSLS. Provided efficient transport of Cl-VSLS from the source region into the stratosphere further emission increases could ultimately even cause a significant delay of the predicted recovery date of the ozone layer to pre-1980 values [...]

<p>Knowing the stratospheric lifetime of an Ozone Depleting Substance (ODS), and its potential depletion of ozone during that time, is vital to reliably monitor and control the use of ODSs. Here, we present improved policy-relevant parameters: Fractional Release Factors (FRFs), Ozone Depletion Potentials (ODPs), and stratospheric lifetimes, for four understudied long-lived CFCs: CFC-13 (CClF₃), CFC-114 (CClF₂CCCLF₂), CFC-114a (CCl₂FCF₃), and CFC-115 (C₂ClF₅) [...]

<p>We report on measurements of total bromine (Br^tot) in the upper troposphere and lower stratosphere (UTLS) taken from the German High Altitude and LOng range research aircraft (HALO) over the North Atlantic, Norwegian Sea and north-western Europe in September/ October 2017 during the WISE (Wave-driven ISentropic Exchange) research campaign. Br^tot is calculated from measured total organic bromine (Br^org) (i.e., the sum of bromine contained in CH₃Br, the halons and the major very short-lived brominated substances) added to inorganic bromine (Br_y^inorg), evaluated from measured BrO and photochemical modelling [...]