Compared Radar Reflectivity with Heavy Rain Droplet Size Distribution
نویسندگان
چکیده
2. Chinese Academy of Meteorological Sciences, Beijing,10086 Abstract Using OTT-Parsivel Laser Particle Spectrometer at Nanjing in East China, several times heavy rain droplet scale & velocity spectral data aquatic from Mt. Lushan weather stations (elevation 1300meters) Compared to the plain deep convective clouds heavy precipitation, the rain droplet size distribution (DSD) with two elevation of deep convective cloud precipitations were significant features which spectrum width is wider than plain. As the Lushan station located at 1300 meters above sea level on an isolated hilltop, at the observation moments, the authors felt was the development of a strong convective cloud, the sky darkened can hear thunder, clouds with strong wind enveloped in the station. It can be observed in large-scale rain droplets and captured by digital camera. The pictures using digital camera directly show the big rain particles. It can be judged, the DSD information of observed the precipitation is almost the bottle of the heavy raining cumulus clouds. General DSD observations on the surface station is that the droplets in clouds fall running thought after several kilometers with cloud outside the dry air environment, warming and melting, touching and broken, evaporation, etc., after the whereabouts of the status of the process. Contrast these two types of DSD data for the study of deep convective clouds in the rain system, we compare Radar observation with OTT out put reflectivity data which were calculated by Rain DSD, the distribution of particle structure is very useful.
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