Articles | Volume 18, issue 4
https://doi.org/10.5194/amt-18-953-2025
https://doi.org/10.5194/amt-18-953-2025
Research article
 | 
26 Feb 2025
Research article |  | 26 Feb 2025

Cluster analysis of vertical polarimetric radio occultation profiles and corresponding liquid and ice water paths from Global Precipitation Measurement (GPM) microwave data

Jonas E. Katona, Manuel de la Torre Juárez, Terence L. Kubar, F. Joseph Turk, Kuo-Nung Wang, and Ramon Padullés

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Subject: Others (Wind, Precipitation, Temperature, etc.) | Technique: Remote Sensing | Topic: Validation and Intercomparisons
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Cited articles

Ao, C. O., Waliser, D. E., Chan, S. K., Li, J.-L., Tian, B., Xie, F., and Mannucci, A. J.: Planetary boundary layer heights from GPS radio occultation refractivity and humidity profiles, J. Geophys. Res.-Atmos., 117, D16117, https://doi.org/10.1029/2012JD017598, 2012. a
Atkinson, K. E.: An Introduction to Numerical Analysis, Wiley, New York, ISBN 978-0471624899, 1988. a, b
Bean, B. and Dutton, E.: Radio Meteorology, no. 92 in (National Bureau of Standards), U.S. Govt. Print. Off., https://api.semanticscholar.org/CorpusID:124549052 (last access: 28 April 2024), 1966. a, b
Biondi, R., Randel, W. J., Ho, S.-P., Neubert, T., and Syndergaard, S.: Thermal structure of intense convective clouds derived from GPS radio occultations, Atmos. Chem. Phys., 12, 5309–5318, https://doi.org/10.5194/acp-12-5309-2012, 2012. a
Bretherton, C. S., Peters, M. E., and Back, L. E.: Relationships between Water Vapor Path and Precipitation over the Tropical Oceans, J. Climate, 17, 1517–1528, https://doi.org/10.1175/1520-0442(2004)017<1517:rbwvpa>2.0.co;2, 2004. a
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Polarimetric radio occultations (PROs) use polarized radio signals from satellites to detect moisture and precipitation in Earth's atmosphere. By applying nonlinear regression and k-means cluster analysis to over 2 years of PRO and non-PRO data, this study shows how deviations from a refractivity model relate to vertical profiles of water vapor pressure (moisture) and that differences between components of PRO signals correlate directly with vertical profiles of water path (precipitation).
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