Anna Luebke
A5059968392- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Arctic and Antarctic ice dynamics
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Calibration and Measurement Techniques
- Icing and De-icing Technologies
- Geophysics and Gravity Measurements
- Infrared Target Detection Methodologies
- Climate variability and models
- Solar Radiation and Photovoltaics
- Spacecraft and Cryogenic Technologies
- Ionosphere and magnetosphere dynamics
- Remote Sensing in Agriculture
- nanoparticles nucleation surface interactions
- Cryospheric studies and observations
- Nutrition, Health and Food Behavior
- Scientific Research and Discoveries
- Aeolian processes and effects
- Combustion and Detonation Processes
- Nuclear reactor physics and engineering
- Physics and Engineering Research Articles
- Adaptive optics and wavefront sensing
- Astro and Planetary Science
Leipzig University
2021-2024
Max Planck Institute for Meteorology
2018-2021
Laboratoire atmosphères, milieux, observations spatiales
2018
Institut Pierre-Simon Laplace
2018
Laboratoire de Météorologie Dynamique
2018
Sorbonne Université
2018
Centre National de la Recherche Scientifique
2018
Forschungszentrum Jülich
2010-2017
Laboratory for Atmospheric and Space Physics
2012-2016
FZI Research Center for Information Technology
2014
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, climate impact of natural cirrus aircraft-induced contrail cirrus. Direct observations properties their variability are still incomplete, currently limiting our understanding clouds’ on climate. Also, dynamical effects clouds feedbacks not adequately represented in today’s weather prediction models. Here, we present...
Abstract. The microphysical and radiative properties of cirrus clouds continue to be beyond understanding thus still represent one the largest uncertainties in prediction Earth's climate (IPCC, 2013). Our study aims provide a guide microphysics, which is compiled from an extensive set model simulations, covering broad range atmospheric conditions for formation evolution. results are portrayed same parameter space as field measurements, i.e., Ice Water Content-Temperature (IWC-T) space. We...
Abstract The goal of this chapter is to synthesize information about what now known one the three main types clouds, cirrus, and identify areas where more knowledge needed. Cirrus composed ice particles, form in upper troposphere, temperatures are generally below −30°C. Satellite observations show that maximum-occurrence frequency cirrus near tropics, with a large latitudinal movement seasonally. In situ measurements obtained over wide range types, formation mechanisms, temperatures,...
Abstract. The radiative role of ice clouds in the atmosphere is known to be important, but uncertainties remain concerning magnitude and net effects. However, through measurements microphysical properties cirrus clouds, we can better characterize them, which ultimately allow for their more accurately ascertained. Recently, two types differing by formation mechanism have been classified – situ liquid origin cirrus. In this study, present observational evidence show that distinct do exist....
Abstract. The degree of glaciation mixed-phase clouds constitutes one the largest uncertainties in climate prediction. In order to better understand cloud glaciation, spectrometer observations are presented this paper, which were made temperature regime between 0 and −38 °C (273 235 K), where particles can either be frozen or liquid. extensive data set covers four airborne field campaigns providing a total 139 000 1 Hz points (38.6 h within clouds) over Arctic, midlatitude tropical regions....
Abstract. As part of the EUREC4A (Elucidating role cloud–circulation coupling in climate) field campaign, German research aircraft HALO (High Altitude and Long Range Research Aircraft), configured as a cloud observatory, conducted 15 flights trade-wind region east Barbados January February 2020. Narrative text, state data, metadata describing HALO's operation during campaign are provided. Each flight is segmented by timestamp intervals into standard elements to aid consistent analysis data....
Abstract. Global warming is amplified in the Arctic. However, numerical models struggle to represent key processes that determine Arctic weather and climate. To collect data help constrain models, HALO–(𝒜𝒞)3 aircraft campaign was conducted over Norwegian Greenland seas, Fram Strait, central Ocean March April 2022. The focused on one specific challenge posed by namely reasonable representation of transformations air masses during their meridional transport into out via northward moist-...
Abstract. The global warming is amplified in the Arctic. To collect data that help to constrain weather and climate models, which often do not realistically represent enhanced Arctic warming, HALO-(AC)³ aircraft campaign was conducted March April 2022 over Norwegian Greenland Seas, Fram Strait, central Ocean. Observations were made areas of open ocean, marginal sea ice zone, ice. Two low-flying one long-range, high-altitude research have been employed. Whenever possible, three flown...
In May 2024 the EarthCARE satellite mission was launched. For first time, combines a high spectral resolution lidar and cloud radar with doppler capability as key instruments on one single platform. addition, it is equipped multi imager broadband radiometer. This unique combination makes most complex to study aerosol, clouds, precipitation, radiation. To fully use these new advanced data for science applications, careful validation of measurements products required. We have implemented an...
Abstract. The HALO–(𝒜𝒞)3 aircraft campaign was carried out in March and April 2022 over the Norwegian Greenland seas, Fram Strait, central Arctic Ocean. Three research – High Altitude Long Range Research Aircraft (HALO), Polar 5, 6 performed 54 partly coordinated flights on 23 flight days areas of open ocean, marginal sea ice zone (MIZ), ice. general objective to quantify evolution air mass properties during moist warm-air intrusions (WAIs) cold-air outbreaks (CAOs). To obtain a...
Abstract. Ice clouds are known to be major contributors radiative forcing in the Earth's atmosphere, yet describing their microphysical properties climate models remains challenging. Among these properties, ice water content (IWC) of cirrus is particular interest both because it measurable and can directly related a number other radiatively important variables such as extinction effective radius. This study expands upon work Schiller et al. (2008), extending climatology IWC by combining...
Abstract. The HALO–(AC)3 aircraft campaign was carried out in March and April 2022 over the Norwegian Greenland Seas, Fram Strait, central Arctic Ocean. Three research aircraft, High Altitude Long Range Research Aircraft (HALO), Polar 5, 6, performed 54 partly coordinated flights on 23 flight days areas of open ocean, marginal sea ice zone (MIZ), ice. general objective to quantify evolution air mass properties during moist warm intrusions (WAIs) cold outbreaks (CAOs). To gain a comprehensive...
Abstract. The clouds in the Atlantic trade-wind region are known to have an important impact on global climate system. Acquiring a comprehensive characterization of these based observations is challenge, but it necessary for evaluation their representation models. An exploration how macrophysical and microphysical cloud properties organization field large-scale radiative forcing presented here. In situ measurements effects Broadband AirCrAft RaDiometer Instrumentation (BACARDI) board High...
Abstract. The new airborne thermal infrared (TIR) imager VELOX (Video airbornE Longwave Observations within siX channels) is introduced. commercial camera system of covers six spectral bands with center wavelengths between 7.7 µm and 12 µm. currently applied on board the German High Altitude Long Range Research Aircraft (HALO). It observes two-dimensional fields upward terrestrial radiance a horizontal spatial resolution approximately 10 m by at target distance km. Atmospheric temperature...
Abstract. The radiative role of ice clouds in the atmosphere is known to be important, but uncertainties remain concerning magnitude and net effects. However, through measurements microphysical properties cirrus clouds, we can better characterize them, which ultimately allow for their more accurately ascertained. It has recently been proposed that there are two types – situ liquid origin. In this study, present observational evidence show distinct do exist. Airborne, cloud water content...
Abstract. The new airborne thermal infrared (TIR) imager VELOX (Video airbornE Longwave Observations within siX channels) is introduced. a commercially available TIR camera system that has been adapted extensively for atmospheric applications, which are introduced in this paper. covers six spectral bands with centre wavelengths between 7.7 and 12 µm. Currently, installed on board the German High Altitude Long Range Research Aircraft (HALO) to observe cloud surface properties. It provides...
Abstract. The instrumentation of the High Altitude and Long Range (HALO) research aircraft is extended by new Broadband AirCrAft RaDiometer Instrumentation (BACARDI) to quantify radiative energy budget. Two sets pyranometers pyrgeometers are mounted measure upward downward solar (0.3–3 µm) thermal–infrared (3–100 irradiances. radiometers installed in a passively ventilated fairing reduce effects dynamic environment, e.g., fast changes altitude temperature. remaining thermal range up 20 W m−2...
Abstract. Ice clouds are known to be major contributors radiative forcing in the Earth's atmosphere, yet describing their microphysical properties climate models remains challenging. Among these properties, ice water content (IWC) of cirrus is particular interest both because it measurable and can directly related a number other radiatively important variables such as extinction effective radius. This study expands upon work Schiller et al. (2008), extending climatology IWC by combining...
Abstract. As part of the EUREC4A field campaign, German research aircraft HALO, configured as a cloud observatory, conducted 15 flights in trade wind region east Barbados January and February 2020. Narrative text, state data, meta data describing HALO's operation during campaign are provided. Each HALO flight is segmented by time-stamp intervals into standard elements to aid consistent analysis data. Photographs from cabin animated satellite images synchronized with tracks provided visually...
Abstract. The microphysical and radiative properties of cirrus clouds continue to be beyond understanding thus still represent one the largest uncertainties in prediction Earth's climate (IPCC, 2013). Our study aims provide a guide microphysics, which is compiled from an extensive set model simulations, covering broad range atmospheric conditions for formation evolution. results are portrayed same parameter space as field measurements, i.e. Ice Water Content-Temperature (IWC-T) space. We...
We use airborne radiation measurements from the research campaign on ice clouds in high latitudes (CIRRUS-HL, 31 May – 29 July 2021) collected with Spectral Modular Airborne measuRement sysTem (SMART) to evaluate performance of radiative transfer scheme ecRad Integrated Forecasting System (IFS) numerical weather prediction model developed by European Center for Medium-Range Weather Forecast (ECMWF). focus properties and effects Arctic cirrus, which compared mid-latitude cirrus is known have...
Abstract. In this case study, measured solar irradiances above and below Arctic cirrus are compared to simulations of the European Centre for Medium-Range Weather Forecasts’ Integrated Forecasting System (IFS) making use offline runs operational ecRad radiation scheme. Independent irradiances, properties derived from active remote sensing used evaluate optical microphysical parameterizations in ecRad. The data set was collected central over sea ice (81°–90° North) with High Altitude LOng...