The question whether or not the presence of warm hydrometeors in clouds may play a significant role nucleation new ice particles has been debated for several decades. While early works Fukuta and Lee (1986) Baker (1991) indicated that it might be irrelevant, more recent study Prabhakaran et al. (2019) [arXiv:1906.06129] suggested otherwise. In this work, we are aiming to quantify ice-nucleating...

An effective filtering technique is required for rainfall rate measurement by weather radar. A Jensen–Shannon Distance (JSD) based thresholding filter proposed to mitigate non-meteorological signals, either in clear air or rain situations. This algorithm classifies range-Doppler bins into two classes, hydrometeors and non-hydrometeors, on spectral polarimetric variable features. The resu...

Abstract. Mid-level stratiform precipitations during the passage of warm fronts were detailedly observed on two occasions (light and moderate rain) by a 355 nm polarization lidar water vapor Raman lidar, both equipped with waterproof transparent roof windows. The hours-long precipitation streaks shown in signal (X) volume depolarization ratio (δv) reveal some ubiquitous features microphysical p...