文章基本信息

标题：Comparison of aircraft observations with ensemble forecast model results in terms of the microphysical characteristics of stratiform precipitation
本地全文：下载
作者：Yuan FU ; Hengchi LEI ; Jiefan YANG 等
期刊名称：Atmospheric and Oceanic Science Letters
印刷版ISSN：1674-2834
电子版ISSN：2376-6123
出版年度：2020
卷号：13
期号：5
页码：452-461
DOI：10.1080/16742834.2020.1780902
语种：English
出版社：Taylor and Francis Ltd
摘要：The prediction of the particle number concentration and liquid/ice water content of cloud is significant for many aspects of atmospheric science. However, given the uncertainties in the initial and boundary conditions and imperfections of microphysical schemes, the accurate prediction of these microphysical properties of cloud is still a big challenge. The ensemble approach may be a viable way to reduce forecast uncertainties. In this paper, a large-scale stratiform cloud precipitation process is studied by comparing results of a 10-member ensemble forecast model with aircraft observation data. By means of the ensemble average, the prediction of bulk parameters such as liquid water content and ice water content can be improved in comparison with the control member, but the particle number concentrations are still one to two orders of magnitude less than those from observations. Intercomparison of raindrop size spectra reveals a big distinction between observations and predictions for particles with a diameter less than 1000 μm.
关键词：Aircraft observation;ensemble forecast model;particle number concentration;liquid/ice water content;飞机观测;集合模式;粒子数浓度;液态含水量/冰水含量