Articles | Volume 15, issue 5
https://doi.org/10.5194/amt-15-1491-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-1491-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
VELOX – a new thermal infrared imager for airborne remote sensing of cloud and surface properties
Michael Schäfer
CORRESPONDING AUTHOR
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Kevin Wolf
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
now at: Institut Pierre-Simon Laplace, Sorbonne Université, Paris, France
André Ehrlich
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Christoph Hallbauer
enviscope GmbH, Frankfurt am Main, Germany
Evelyn Jäkel
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Friedhelm Jansen
Max Planck Institute for Meteorology, Hamburg, Germany
Anna Elizabeth Luebke
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Joshua Müller
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Jakob Thoböll
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
Timo Röschenthaler
enviscope GmbH, Frankfurt am Main, Germany
Bjorn Stevens
Max Planck Institute for Meteorology, Hamburg, Germany
Manfred Wendisch
Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
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Cited
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- Flower trade‐wind clouds are shallow mesoscale convective systems T. Dauhut et al. https://doi.org/10.1002/qj.4409
- Overview: quasi-Lagrangian observations of Arctic air mass transformations – introduction and initial results of the HALO–(𝒜 𝒞)3 aircraft campaign M. Wendisch et al. https://doi.org/10.5194/acp-24-8865-2024
- Thermodynamic and cloud evolution in a cold-air outbreak during HALO-(AC)3: quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses B. Kirbus et al. https://doi.org/10.5194/acp-24-3883-2024
- A comprehensive in situ and remote sensing data set collected during the HALO–(𝒜 𝒞)3 aircraft campaign A. Ehrlich et al. https://doi.org/10.5194/essd-17-1295-2025
- Quasi-Lagrangian observations of cloud transitions during the initial phase of marine cold air outbreaks in the Arctic – Part 2: Vertical cloud structure A. Weber et al. https://doi.org/10.5194/acp-26-8001-2026
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- High-density Au nanoshells assembled onto Fe3O4 nanoclusters for integrated enrichment and photothermal/colorimetric dual-mode detection of SARS-CoV-2 nucleocapsid protein X. Li et al. https://doi.org/10.1016/j.bios.2023.115688
- Cloud liquid water path detectability and retrieval accuracy from airborne passive microwave observations over Arctic sea ice N. Risse et al. https://doi.org/10.5194/amt-19-2197-2026
9 citations as recorded by crossref.
- High-resolution maps of Arctic surface skin temperature and type retrieved from airborne thermal infrared imagery collected during the HALO–(𝒜 𝒞)3 campaign J. Müller et al. https://doi.org/10.5194/amt-18-4695-2025
- Flower trade‐wind clouds are shallow mesoscale convective systems T. Dauhut et al. https://doi.org/10.1002/qj.4409
- Overview: quasi-Lagrangian observations of Arctic air mass transformations – introduction and initial results of the HALO–(𝒜 𝒞)3 aircraft campaign M. Wendisch et al. https://doi.org/10.5194/acp-24-8865-2024
- Thermodynamic and cloud evolution in a cold-air outbreak during HALO-(AC)3: quasi-Lagrangian observations compared to the ERA5 and CARRA reanalyses B. Kirbus et al. https://doi.org/10.5194/acp-24-3883-2024
- A comprehensive in situ and remote sensing data set collected during the HALO–(𝒜 𝒞)3 aircraft campaign A. Ehrlich et al. https://doi.org/10.5194/essd-17-1295-2025
- Quasi-Lagrangian observations of cloud transitions during the initial phase of marine cold air outbreaks in the Arctic – Part 2: Vertical cloud structure A. Weber et al. https://doi.org/10.5194/acp-26-8001-2026
- Persistent EarthCARE underflight studies of the ITCZ and organized convection (PERCUSION): contribution to EarthCARE validation S. Groß et al. https://doi.org/10.5194/amt-19-3933-2026
- High-density Au nanoshells assembled onto Fe3O4 nanoclusters for integrated enrichment and photothermal/colorimetric dual-mode detection of SARS-CoV-2 nucleocapsid protein X. Li et al. https://doi.org/10.1016/j.bios.2023.115688
- Cloud liquid water path detectability and retrieval accuracy from airborne passive microwave observations over Arctic sea ice N. Risse et al. https://doi.org/10.5194/amt-19-2197-2026
Saved (final revised paper)
Latest update: 04 Sep 2026
Short summary
The new airborne thermal infrared imager VELOX is introduced. It measures two-dimensional fields of spectral thermal infrared radiance or brightness temperature within the large atmospheric window. The technical specifications as well as necessary calibration and correction procedures are presented. Example measurements from the first field deployment are analysed with respect to cloud coverage and cloud top altitude.
The new airborne thermal infrared imager VELOX is introduced. It measures two-dimensional fields...