Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 11
Articles | Volume 19, issue 11
https://doi.org/10.5194/amt-19-3741-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-3741-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 11
Research article
 | 
11 Jun 2026
Research article |  | 11 Jun 2026

Rain gauges and X-band radar hourly comparison under complex orographic conditions in Reunion Island during the passage of the tropical cyclone Batsirai

Ambinintsoa Volatiana Ramanamahefa, Thiruvengadam Padmanabhan, Guillaume Lesage, and Joël Van Baelen

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Short summary
This study examines quantitative precipitation estimation (QPE) using X-band radar in Reunion, a mountainous island. Rain rate (R) was derived from reflectivity (Z) and specific differential phase (kdp) using the Z(R) and R(kdp) estimators. Z was corrected using the single-polarization Hitschfeld-Bordan (HB) and the dual-polarization philinear methods. Their strengths, limitations, and pre-processing steps were detailed. R(kdp) coefficients were calculated from radar observations. 
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