Overview of Cloud Microphysical Measurements during the SENS4ICE Airborne Test Campaigns: Contrasting Icing Frequencies from Climatological Data to First Results from Airborne Observations

Technical Paper

2023-01-1491

ISSN: 0148-7191, e-ISSN: 2688-3627

DOI: https://doi.org/10.4271/2023-01-1491

Published June 15, 2023 by SAE International in United States

Sector:

Aerospace

Event: International Conference on Icing of Aircraft, Engines, and Structures

Language: English

Abstract

The European Union’s Horizon 2020 programme has funded the SENS4ICE (Sensors for Certifiable Hybrid Architectures for Safer Aviation in Icing Environment) project [1], an innovative approach for the development and testing of new sensors for the detection of supercooled large droplets (SLD). SLD may impinge behind the protected surfaces of aircraft and therefore represents a threat to aviation safety. The newly developed sensors will be tested in combination with an indirect detection method on two aircraft, in two parallel flight programs: One on the Embraer Phenom 300 in the U.S. and one on the ATR-42 in Europe.

In this framework the Deutsches Zentrum für Luft- und Raumfahrt (German Aerospace Center) is in charge of the airborne measurements and data evaluation of the microphysical properties of clouds encountered during the SENS4ICE field campaigns in February, March and April 2023. We present the instrumentation that is used in the flight experiments for the characterization of icing environments and for the validation and performance assessment of new sensors for the detection and discrimination of Appendix O and Appendix C conditions [2, 3].

Further, with partners from Centre Europeen De Recherche Et De Formation Avancee En Calcul Scientifique (CERFACS), the German Weather Service (DWD), the Italian Aerospace Research Center (CIRA) and Leading Edge Atmospherics (LEA), we present the considerations that were undertaken to find the best campaign location with highest frequency of icing occurrence on a climatological basis, taking into account the safety requirements of the aircraft. Four data sets of icing conditions based on various meteorological input data (model and observations) have been analyzed to provide an overview of the occurrence of icing. The data give a good impression on the geographical and vertical distribution of icing conditions above Europe and the Northern U.S. in general and specifically at higher altitudes (> 750 hPa or 8000ft) for the European campaign. We find enhanced icing frequencies between 1 to 5% at altitudes between 2 and 6 km even in the spring, summer and autumn months above Europe.

We show highlights from selected individual cases from the North American test campaign performed in February and March 2023. The analysis gives a first impression of the extensive data set of icing conditions made available by the SENS4ICE project for sensor evaluation and for validation of satellite observations and model forecasts.

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References

Schwarz , C.W. The SENS4ICE EU Project - SENSors and Certifiable Hybrid Architectures for Safer Aviation in ICing Environment - A Project Midterm Overview 6th International Conference Prospects of Civil Avionics Development 2021
Federal Aviation Administration
European Aviation Safety Agency 2018
Christoph Deiler , F.S. Design and Testing of an Indirect Ice Detection Methodology SAE International Conference on Icing of Aircraft, Engines, and Structures 2023
Schwarz , C. SENS4ICE EU Project Preliminary Results SAE International Conference on Icing of Aircraft, Engines, and Structures 2023
Lucke J. , Jurkat-Witschas T. , Heller R. , Hahn V. , Hamman M. , Breitfuss W. , Bora V.R. , Moser M. Voigt C. Icing Wind Tunnel Measurements of Supercooled Large Droplets Using the 12 mm Total Water Content Cone of the Nevzorov Probe: Measurement Data 2022
Jurkat-Witschas , T. , Voigt , C. , Braga , R. , Rosenfeld , D. et al. Impact of Aerosol on Droplet Number at Cloud Baseand on the Altitude of Freezing in Convective Clouds SAE International Conference on Icing of Aircraft, Engines, and Structures 2019 2019
Bernstein , B.C. , Wolff , C.A. , and McDonough , F. An Inferred Climatology of Icing Conditions Aloft, Including Supercooled Large Drops. Part I: Canada and the Continental United States Journal of Applied Meteorology and Climatology 46 2007 1857 1878
Bernstein , B. , DiVito , S. , Riley , J.T. , Landolt , S. et al. 2021
Cober , S.G. and Isaac , G.A. Characterization of Aircraft Icing Environments with Supercooled Large Drops for Application to Commercial Aircraft Certification Journal of Applied Meteorology and Climatology 51 2 2012 265 284
Kalinka , F. , Roloff , K. , Tendel , J. , and Hauf , T. The In-Flight Icing Warning System ADWICE for European Airspace-Current Structure, Recent Improvements and Verification Results Meteorologische Zeitschrift 26 2017 441 455
Le Bot , C. SIGMA: System of Icing Geographic identification in Meteorology for Aviation 11th Conference on 1th Conference on Aviation Range and Aerospace Meteorology Hyannis, MA 2004
Bernstein , B.C. and LeBot , C. An Inferred Climatology of Icing Conditions Aloft, Including Supercooled Large Drops. Part II: Europe, Asia, and the Globe Journal of Applied Meteorology and Climatology 48 2009 1503 1526
Zollo , A.L. In-Flight Icing: A Remote Detection Tool Based on Satellite Data General Assembly Meeting of the European Geosciences Union (EGU) 2022
Lilie , L.E. , Bouley , D. , Sivo , C.P. Ratvasky , T.P. 2021
Korolev , A.V. , Strapp , J.W. , Isaac , G.A. , and Nevzorov , A.N. The Nevzorov Airborne Hot-Wire LWC–TWC Probe: Principle of Operation and Performance Characteristics Journal of Atmospheric and Oceanic Technology 15 1998 1495 1510
Baumgardner , D. , Jonsson , H. , Dawson , W. , O’Connor , D. et al. The Cloud, Aerosol and Precipitation Spectrometer: A New Instrument for Cloud Investigations Atmospheric Research 59-60 2001 251 264
Esposito , B.M. , Bachalo , W.D. , Leroy , D. , Schwarzenboeck , A. et al. Wind Tunnel Measurements of Simulated Glaciated Cloud Conditions to Evaluate Newly Developed 2D Imaging Probes SAE Technical Paper 2019-01-1981 2019 https://doi.org/10.4271/2019-01-1981
De La Torre Castro , E. , Jurkat-Witschas , T. , Afchine , A. , Grewe , V. et al. 2023
Beswick K. , Baumgardner D. , Gallagher M. , Volz-Thomas A. , Nedelec P. , Wang K.-Y. Lance S. The Backscatter Cloud Probe - A Compact Low-Profile Autonomous Optical Spectrometer Atmospheric Measurement Techniques 7 1443 1457 2014
Lucke , J. , Jurkat-Witschas , T. , Baumgardner , D. , Kalinka , F. et al. Characterization of Atmospheric Icing Conditions during the HALO-(AC) 3 Campaign with the Nevzorov Probe and the Backscatter Cloud Probe with Polarization Detection SAE International Conference on Icing of Aircraft 2023
Jaron , O. , Bernstein , B. , Schwartz , C. Vie , B. 2023
De La Torre Castro , E. , Jurkat-Witschas , T. , Afchine , A. , Grewe , V. et al. 2023
Bernstein , B.C. Regional and Local Influences on Freezing Drizzle, Freezing Rain,and Ice Pellet Events Weather and Forecasting 15 5 2000 485 508
Korolev , A. Reconstruction of the Sizes of Spherical Particles from Their Shadow Images. Part I: Theoretical Considerations Journal of Atmospheric and Oceanic Technology 24 3 2007 376 389

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Overview of Cloud Microphysical Measurements during the SENS4ICE Airborne Test Campaigns: Contrasting Icing Frequencies from Climatological Data to First Results from Airborne Observations

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