Coincident In-situ and Triple-Frequency Radar Airborne Observations in the Arctic

• DOI: 10.5194/amt-2021-148
• Publication Date: 2021-07-22T11:56:04Z
• Authors: Cuong M. Nguyen; Mengistu Wolde; Alessandro Battaglia; Leonid Nichman; Natalia Bliankins...; Samuel Haimov; Kenny Bala; Dirk Schuettemeyer
• Keywords: Particle (ecology)

Abstract. The dataset collected during the Radar Snow Experiment (RadSnowExp) presents first-ever triple-frequency radar reflectivities combined with almost perfectly co-located and coincident airborne in situ microphysics probes on board National Research Council Canada (NRC) Convair-580 aircraft. Over 12 hours of flight data mixed phased glaciated clouds more than 3.4 non-Rayleigh regions for at least one frequencies provide a unique opportunity studying relationship between cloud microphysical properties signals. particle imagery this study include from CPI probe, which provides high resolution allow accurate identification types including level riming within DFR plane. are analysed grouped based dominant compositions processes (level aggregation riming). results consistent main findings previous modelling studies specific dual-frequency ratio (DFR) plane associated scattering different ice habits, especially where signal is dominated by large aggregates. Moreover, analysis shows that close relationships signatures particles’ bulk density, aggregations characteristic size distribution (PSD).