首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Microphysical and radiative properties of mixed-phase altocumulus: A model evaluation of glaciation effects
Authors:Kenneth Sassen  Vitaly I Khvorostyanov  
Institution:aGeophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA;bCentral Aerological Observatory, Dolgoprudny, Moscow, Russian Federation, Russia
Abstract:Using a cloud model with explicit microphysics and radiation, we evaluate the microphysical changes in a supercooled liquid altocumulus cloud with increasing ice content, until glaciation occurs. The properties of the ice and water particle constituents are resolved independently, revealing the relative radiative contributions from the water phase source cloud versus the ice phase virga. Cloud contents are also converted to millimeter-wave radar reflectivities to shed light on the ability of such radars to study these ubiquitous clouds. The results show that the radiative and radar backscattering properties of mixed-phase clouds are dominated by the cloud droplets and ice crystals they contain, respectively.
Keywords:Microphysical properties  Radiative properties  Altocumulus
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号