0000000000353107

AUTHOR

Klaus Pfeilsticker

showing 5 related works from this author

The ACRIDICON-CHUVA campaign: Studying tropical deep convective clouds and precipitation over Amazonia using the new German research aircraft HALO

2016

Abstract Between 1 September and 4 October 2014, a combined airborne and ground-based measurement campaign was conducted to study tropical deep convective clouds over the Brazilian Amazon rain forest. The new German research aircraft, High Altitude and Long Range Research Aircraft (HALO), a modified Gulfstream G550, and extensive ground-based instrumentation were deployed in and near Manaus (State of Amazonas). The campaign was part of the German–Brazilian Aerosol, Cloud, Precipitation, and Radiation Interactions and Dynamics of Convective Cloud Systems–Cloud Processes of the Main Precipitation Systems in Brazil: A Contribution to Cloud Resolving Modeling and to the GPM (Global Precipitatio…

ConvectionAtmospheric ScienceACRIDICON–CHUVA010504 meteorology & atmospheric sciencesMeteorologyResearch AircraftCloud computingPrecipitation Formation010502 geochemistry & geophysics01 natural sciencesMess- und Sensortechnik OPPrecipitation (meteorology)tropical deep convective cloudsRemote SensingHaloAmazoniaCloudsRange (aeronautics)ddc:550Radiative transferPrecipitation0105 earth and related environmental sciencesLidarAnthropogenic AerosolsVerkehrsmeteorologiebusiness.industryAmazon rainforestAtmosphärische SpurenstoffeDeep Convective CloudsProjektmanagement Flugexperimente OPAerosolAtmospheric ThermodynamicsEnvironmental sciencebusinessCloud Life CycleGlobal Precipitation Measurement
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ML-CIRRUS: The Airborne Experiment on Natural Cirrus and Contrail Cirrus with the High-Altitude Long-Range Research Aircraft HALO

2017

Abstract The Midlatitude Cirrus experiment (ML-CIRRUS) deployed the High Altitude and Long Range Research Aircraft (HALO) to obtain new insights into nucleation, life cycle, and climate impact of natural cirrus and aircraft-induced contrail cirrus. Direct observations of cirrus properties and their variability are still incomplete, currently limiting our understanding of the clouds’ impact on climate. Also, dynamical effects on clouds and feedbacks are not adequately represented in today’s weather prediction models. Here, we present the rationale, objectives, and selected scientific highlights of ML-CIRRUS using the G-550 aircraft of the German atmospheric science community. The first combi…

Atmospheric Science010504 meteorology & atmospheric sciencesMeteorologysatellitecontrail cirruscirrus010501 environmental sciences01 natural sciencesmodellingML-CIRRUSRange (aeronautics)ddc:550Wolkenphysik0105 earth and related environmental sciencesLidarFernerkundung der AtmosphäreVerkehrsmeteorologieAtmosphärische SpurenstoffeTrace gasAerosolLidarMiddle latitudesHALOEnvironmental scienceCirrusSatelliteHaloaircraft measurementsBulletin of the American Meteorological Society
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Overview: On the transport and transformation of pollutants in the outflow of major population centres - Observational data from the EMeRGe European …

2022

Megacities and other major population centres (MPCs) worldwide are major sources of air pollution, both locally as well as downwind. The overall assessment and prediction of the impact of MPC pollution on tropospheric chemistry are challenging. The present work provides an overview of the highlights of a major new contribution to the understanding of this issue based on the data and analysis of the EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional to Global scales) international project. EMeRGe focuses on atmospheric chemistry, dynamics, and transport of local and regional pollution originating in MPCs. Airborne measurements, taking advantage of …

PollutionAtmospheric SciencePollutantsTroposferaMeteorologypo valleyatmospheric transportmedia_common.quotation_subjectTropospheric chemistryPopulationmegacitiesmediterraneanContext (language use)Air -- Pollution -- Measurementddc:550educationairborne measurementsmajor population centresmedia_commoneducation.field_of_studyAire -- Contaminació -- MesuramentVegetationresearch aircraftPollutionMegacitiesAtmospheric polllutionEarth sciencesMegacityFlight planning:Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció [Àrees temàtiques de la UPC]Atmospheric chemistryHALOEnvironmental scienceSatellite
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Depletion of ozone and reservoir species of chlorine and nitrogen oxide in the lower Antarctic polar vortex measured from aircraft

2017

Novel airborne in situ measurements of inorganic chlorine, nitrogen oxide species, and ozone were performed inside the lower Antarctic polar vortex and at its edge in September 2012. We focus on one flight during the Transport and Composition of the LMS/Earth System Model Validation (TACTS/ESMVal) campaign with the German research aircraft HALO (High-Altitude LOng range research aircraft), reaching latitudes of 65°S and potential temperatures up to 405 K. Using the early winter correlations of reactive trace gases with N2O from the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS), we find high depletion of chlorine reservoir gases up to ∼40% (0.8 ppbv) at 12 km to 1…

OzoneDenitrification010504 meteorology & atmospheric sciences010501 environmental sciencesAtmospheric sciences01 natural scienceschemistry.chemical_compoundAltitudePolar vortexddc:550WolkenphysikStratosphereairborne measurements0105 earth and related environmental sciencesmass spectrometrydenitrificationVerkehrsmeteorologieAtmosphärische Spurenstoffechlorine depletionOzone depletionTrace gasGeophysicschemistryHALOGeneral Earth and Planetary SciencesEnvironmental scienceNitrogen oxide
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Inter-comparison of stratospheric O<sub>3</sub> and NO<sub>2</sub> abundances retrieved from …

2006

Abstract. Stratospheric O3 and NO2 abundances measured by different remote sensing instruments are inter-compared: (1) Line-of-sight absorptions and vertical profiles inferred from solar spectra in the ultra-violet (UV), visible and infrared (IR) wavelength ranges measured by the LPMA/DOAS (Limb Profile Monitor of the Atmosphere/Differential Optical Absorption Spectroscopy) balloon payload during balloon ascent/descent and solar occultation are examined with respect to internal consistency. (2) The balloon borne stratospheric profiles of O3 and NO2 are compared to collocated space-borne skylight limb observations of the Envisat/SCIAMACHY satellite instrument. The trace gas profiles are retr…

Atmospheric Science010504 meteorology & atmospheric sciencesDifferential optical absorption spectroscopyBalloonAtmospheric sciences01 natural sciencesOccultationTrace gasSCIAMACHY010309 opticsAtmosphereAltitude13. Climate action0103 physical sciencesEnvironmental scienceSatellite0105 earth and related environmental sciencesRemote sensingAtmospheric Chemistry and Physics
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