Cloudnet IWC during PS106 ...

• Main Authors: Griesche, Hannes, Seifert, Patric, Engelmann, Ronny, Radenz, Martin, Bühl, Johannes
• Format: Dataset
• Language: English
• Published: PANGAEA 2020
• Subjects: Cloudnet; OCEANET-ATMOSPHERE; PASCAL; Polarstern; PS106; TROPOS; Event label; DATE/TIME; File name; File format; File size; Uniform resource locator/link to file; Cloud Radar; PS106/1; Arctic Amplification AC3; Arctic
• Online Access: https://dx.doi.org/10.1594/pangaea.919452; https://doi.pangaea.de/10.1594/PANGAEA.919452

The dataset contains daily nc-files of the Cloudnet ice water content during Polarstern cruise PS106 based on:- 35.5 GHz Cloud radar MIRA.The data is retrieved using the instrument synergystic approach Cloudnet (Illingworth, 2007 doi:10.1175/BAMS-88-6-883 ).This variable was calculated from the 35.5-GHz radar reflectivity factor after correction for gaseous attenuation, and temperature taken from a forecast model, using the following empirical formula:log10(iwc[g m-3]) = 0.000242Z[dBZ]T[degC] + 0.0699Z[dBZ] + -0.0186T[degC] + -1.63 (Hogan, 2006 doi:10.1175/JAM2340.1 ).In this formula Z is taken to be defined such that all frequencies of radar would measure the same Z in Rayleigh scattering ice. However, the radar is more likely to have been calibrated such that all frequencies would measure the same Z in Rayleigh scattering liquid cloud at 0 degrees C. The measured Z is therefore multiplied by|K(liquid,0degC,35GHz)|^2/0.93 = 0.9441before applying this formula.The formula has been used where the ... : This is an updated version of this data set: https://doi.pangaea.de/10.1594/PANGAEA.900246 ...