Ms. Carmen Ullwer Profile

Carmen Ullwer

at Fraunhofer IOSB

SPIE Involvement:

Author

Publications (14)

Proceedings Article | 22 November 2024 Presentation

Comparative analysis of atmospheric aerosol models for quantifying aerosol loading and characterizing visibility in West Africa

Thomas Kociok, Carmen Ullwer, Karin Stein, Alexander M. van Eijk

Proceedings Volume 13194, 131940B (2024) https://doi.org/10.1117/12.3031852

KEYWORDS: Atmospheric modeling, Aerosols, Solar radiation models, Visibility, Atmospheric particles, Solar radiation, Optical properties, Data acquisition, Meteorology

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Proceedings Article | 19 November 2024 Paper

Comparison of mixing length scale parametrization for the investigation of turbulence relevant for ground to satellite communication

D. Sprung, C. Ullwer, A. M. van Eijk

Proceedings Volume 13194, 1319408 (2024) https://doi.org/10.1117/12.3034040

KEYWORDS: Turbulence, Satellite communications, Wind speed, Data modeling, Atmospheric modeling, Signal attenuation, Satellites, Meteorology, Laser frequency, Laser applications

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Proceedings Article | 19 October 2023 Presentation + Paper

Sensitivity study on the number of height levels used in a numerical weather model to determine the vertical profile of Cn2

Carmen Ullwer, Detlev Sprung, Karin Stein, A. M. van Eijk

Proceedings Volume 12731, 127310M (2023) https://doi.org/10.1117/12.2684371

KEYWORDS: Simulations, Optical turbulence, Troposphere, Data modeling, Wind speed, Stratosphere, Atmospheric modeling, Modeling, Interpolation, Turbulence

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Proceedings Article | 19 October 2023 Presentation + Paper

An electrooptical propagation and signature experiment in a humid environment

Christian Eisele, Dirk Seiffer, Erik Sucher, Carmen Ullwer, Peter Großmann, Berndt Bartos

Proceedings Volume 12731, 1273104 (2023) https://doi.org/10.1117/12.2675880

KEYWORDS: Simulations, Sensors, Turbulence, Electro optics, Electro optical modeling, Atmospheric propagation, Thermal modeling

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Proceedings Article | 15 March 2023 Presentation + Paper

Investigating the integrated optical turbulence over the sea by different measurement techniques and mesoscale model simulations

Erik Sucher, Sven van Binsbergen, Carmen Ullwer, Alexander M. van Eijk, Karin Stein, Detlev Sprung

Proceedings Volume 12266, 1226604 (2023) https://doi.org/10.1117/12.2638774

KEYWORDS: Simulations, Turbulence, Beam wander, Atmospheric propagation, Atmospheric modeling, Optical turbulence, Beam path, Equipment, Atmospheric optics, Transmitters

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Proceedings Article | 26 October 2022 Presentation

Characteristics of optical turbulence over the sea

Erik Sucher, Sven Binsbergen, Carmen Ullwer, Detlev Sprung, Alexander van Eijk, Karin Stein

Proceedings Volume 12266, 1226605 (2022) https://doi.org/10.1117/12.2636241

KEYWORDS: Turbulence, Optical turbulence, Wave propagation, Ultrasonics, Refraction, Data acquisition

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Proceedings Article | 12 September 2021 Presentation + Paper

Investigation of vertical profiles of optical turbulence from mesoscale simulations runs and radiosonde data

Detlev Sprung, Carmen Ullwer, Alexander M. van Eijk, Karin Stein

Proceedings Volume 11860, 1186008 (2021) https://doi.org/10.1117/12.2600251

KEYWORDS: Atmospheric modeling, Meteorology, Optical turbulence, Refractive index, Humidity, Atmospheric optics, Turbulence, Data modeling, Troposphere

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Proceedings Article | 12 September 2021 Presentation + Paper

Investigation of the atmosphere above the sea regarding laser performance

Detlev Sprung, Carmen Ullwer, Erik Sucher, Peter Grossmann, Thomas Kociok, Alexander M. van Eijk, Karin Stein

Proceedings Volume 11860, 1186007 (2021) https://doi.org/10.1117/12.2600229

KEYWORDS: Turbulence, Visibility, Meteorology, Laser beam propagation, Atmospheric propagation, Signal attenuation, Optical turbulence, Ocean optics, Refractive index

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Proceedings Article | 20 September 2020 Presentation + Paper

Investigation of optical turbulence over an urban area: comparison between experimental results and simulation

Detlev Sprung, Carmen Ullwer, Erik Sucher, Thomas Kociok, Alexander M. van Eijk, Karin Stein

Proceedings Volume 11532, 1153205 (2020) https://doi.org/10.1117/12.2572997

KEYWORDS: Optical turbulence, Atmospheric optics, Refractive index, Thermal effects, Wireless communications, Optical testing, Turbulence

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Proceedings Article | 20 September 2020 Presentation + Paper

Turbulence magnitude of West Africa: a virtual measuring campaign

Thomas Kociok, Carmen Ullwer, Detlev Sprung, Alexander M. J. van Eijk, Karin Stein

Proceedings Volume 11532, 1153204 (2020) https://doi.org/10.1117/12.2571061

KEYWORDS: Turbulence, Atmospheric modeling, Solar radiation models, Data modeling, Atmospheric monitoring, Atmospheric optics, Satellites, Humidity, Solar radiation, Aerosols

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Proceedings Article | 9 October 2019 Paper

Near-surface turbulence effects on electro-optical propagation in an arid environment

Christian Eisele, Dirk Seiffer, Erik Sucher, Carmen Ullwer, Thomas Kociok, Detlev Sprung, Sven van Binsbergen, Piet Bijl

Proceedings Volume 11153, 1115302 (2019) https://doi.org/10.1117/12.2531009

KEYWORDS: Turbulence, Electro optics, Atmospheric propagation, Algorithm development, Modulation transfer functions, Atmospheric sensing, Optical sensors, Detector development, Detection and tracking algorithms, Electro optical systems

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Proceedings Article | 6 September 2019 Paper

Global simulations of Cn2 using the Weather Research and Forecast Model WRF and comparison to experimental results

Carmen Ullwer, Detlev Sprung, Erik Sucher, Thomas Kociok, Peter Grossmann, Alexander M. van Eijk, Karin Stein

Proceedings Volume 11133, 111330I (2019) https://doi.org/10.1117/12.2530280

KEYWORDS: Electro optical modeling, Systems modeling, Databases, Data modeling, Electro optical sensors, Electro optical systems, Laser systems engineering, Atmospheric optics, Atmospheric sensing, Optical turbulence

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Proceedings Article | 10 October 2018 Paper

Optical turbulence in the coastal area over False Bay, South Africa: comparison of measurements and modeling results

Detlev Sprung, Alexander M. van Eijk, Carmen Ullwer, Willi Gunter, Christian Eisele, Dirk Seiffer, Erik Sucher, Karin Stein

Proceedings Volume 10787, 1078703 (2018) https://doi.org/10.1117/12.2325609

KEYWORDS: Optical turbulence, Turbulence, Heat flux, Meteorology, Atmospheric propagation, Ultrasonics, Atmospheric modeling, Wave propagation, Atmospheric optics, Humidity

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Proceedings Article | 10 October 2017 Paper

Inhomogeneity of optical turbulence over False Bay (South Africa)

Carmen Ullwer, Detlev Sprung, Alexander M. van Eijk, Willi Gunter, Karin Stein

Proceedings Volume 10425, 1042509 (2017) https://doi.org/10.1117/12.2279381

KEYWORDS: Optical turbulence, Data modeling, Ultrasonics, Turbulence, Meteorology, Refractive index, Temperature metrology, Transmitters, Optical testing, Ocean optics

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Showing 5 of 14 publications

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