Articles | Volume 12, issue 6
Research article
24 Jun 2019
Research article |  | 24 Jun 2019

Evaluation of differential absorption radars in the 183 GHz band for profiling water vapour in ice clouds

Alessandro Battaglia and Pavlos Kollias

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Cited articles

Aires, F., Prigent, C., Buehler, S. A., Eriksson, P., Milz, M., and Crewell, S.: Towards more realistic hypotheses for the information content analysis of cloudy/precipitating situations – Application to a hyperspectral instrument in the microwave, Q. J. Roy. Meteor. Soc., 145, 1–14,, 2019. a
Anderson, E.: Statement of guidance for global numerical weather prediction (NWP), Tech. rep., World Meteorological Organization, available at: (last access: 20 June 2019), 2014. a
Bailey, M. P. and Hallett, J.: A Comprehensive Habit Diagram for Atmospheric Ice Crystals: Confirmation from the Laboratory, AIRS II, and Other Field Studies, J. Atmos. Sci., 66, 2888–2899,, 2009. a, b
Battaglia, A. and Delanöe, J.: Synergies and complementarities of CloudSat-CALIPSO snow observations, J. Geophys. Res., 118, 721–731,, 2013. a
Battaglia, A. and Kollias, P.: Error Analysis of a Conceptual Cloud Doppler Stereoradar with Polarization Diversity for Better Understanding Space Applications, J. Atmos. Ocean. Tech., 32, 1298–1319,, 2014. a, b
Short summary
This work investigates the potential of an innovative differential absorption radar for retrieving relative humidity inside ice clouds. The radar exploits the strong spectral dependence of the water vapour absorption for frequencies close to the 183 GHz water vapour band. Results show that observations from a system with 4–6 frequencies can provide novel information for understanding the formation and growth of ice crystals.