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AMT | Articles | Volume 12, issue 3
Atmos. Meas. Tech., 12, 1815–1839, 2019
https://doi.org/10.5194/amt-12-1815-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 12, 1815–1839, 2019
https://doi.org/10.5194/amt-12-1815-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 20 Mar 2019

Research article | 20 Mar 2019

Calibration of a 35 GHz airborne cloud radar: lessons learned and intercomparisons with 94 GHz cloud radars

Florian Ewald 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
Agilent Technologies: Noise Figure Measurement Accuracy – The Y-Factor Method, Application Note 57-2, available at: http://literature.cdn.keysight.com/litweb/pdf/5952-3706E.pdf (last access: 10 March 2019), October 2004. a
Apel, J. R.: An improved model of the ocean surface wave vector spectrum and its effects on radar backscatter, J. Geophys. Res.-Oceans, 99, 16269–16291, https://doi.org/10.1029/94JC00846, 1994. a
Atlas, D.: Radar Calibration: Some Simple Approaches, B. Am. Meteorol. Soc., 83, 1313–1316, https://doi.org/10.1175/1520-0477(2002)083<1313:RCSSA>2.3.CO;2, 2002. a
Barrick, D. E., Headrick, J. M., Bogle, R. W., and Crombie, D. D.: Sea backscatter at HF: Interpretation and utilization of the echo, Proc. IEEE, 62, 673–680, https://doi.org/10.1109/PROC.1974.9507, 1974. a
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This study gives a summary of lessons learned during the absolute calibration of the airborne, high-power Ka-band cloud radar HAMP MIRA on board the German research aircraft HALO. The first part covers the internal calibration of the instrument where individual instrument components are characterized in the laboratory. In the second part, the internal calibration is validated with external reference sources like the ocean surface backscatter and different air- and spaceborne cloud radars.
This study gives a summary of lessons learned during the absolute calibration of the airborne,...
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