Articles | Volume 13, issue 11
Atmos. Meas. Tech., 13, 5799–5825, 2020
https://doi.org/10.5194/amt-13-5799-2020
Atmos. Meas. Tech., 13, 5799–5825, 2020
https://doi.org/10.5194/amt-13-5799-2020

Research article 03 Nov 2020

Research article | 03 Nov 2020

Evaluation of the reflectivity calibration of W-band radars based on observations in rain

Alexander Myagkov et al.

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Acquistapace, C., Kneifel, S., Löhnert, U., Kollias, P., Maahn, M., and Bauer-Pfundstein, M.: Optimizing observations of drizzle onset with millimeter-wavelength radars, Atmos. Meas. Tech., 10, 1783–1802, https://doi.org/10.5194/amt-10-1783-2017, 2017. a
Alku, L., Moisseev, D., Aittomäki, T., and Chandrasekar, V.: Identification and Suppression of Nonmeteorological Echoes Using Spectral Polarimetric Processing, IEEE Trans. Geosci. Remote Sens., 53, 3628–3638, https://doi.org/10.1109/TGRS.2014.2380476, 2015. a
Angulo-Martínez, M., Beguería, S., Latorre, B., and Fernández-Raga, M.: Comparison of precipitation measurements by OTT Parsivel2 and Thies LPM optical disdrometers, Hydrol. Earth Syst. Sci., 22, 2811–2837, https://doi.org/10.5194/hess-22-2811-2018, 2018. a, b, c, d
Atlas, D.: RADAR CALIBRATION, B. Am. Meteorol. Soc., 83, 1313–1316, https://doi.org/10.1175/1520-0477-83.9.1313, 2002. a
Aydin, K. and Lure, Y.-M.: Millimeter wave scattering and propagation in rain – A computational study at 94 and 140 GHz for oblate spheroidal and spherical raindrops, IEEE Trans. Geosci. Remote Sens., 29, 593–601, https://doi.org/10.1109/36.135821, 1991. a, b, c, d
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Short summary
This study shows two methods for evaluating the reflectivity calibration of W-band cloud radars. Both methods use natural rain as a reference target. The first method is based on spectral polarimetric observations and requires a polarimetric cloud radar with a scanner. The second method utilizes disdrometer observations and can be applied to scanning and vertically pointed radars. Both methods show consistent results and can be applied for operational monitoring of measurement quality.