Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2019.05.021 |
A modelling study of the continuous ice formation in an autumnal Arctic mixed-phase cloud case | |
Fu, Shizuo1; Deng, Xin2; Shupe, Matthew D.3,4; Xue, Huiwen1 | |
2019-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 228页码:77-85 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | An autumnal Arctic mixed-phase cloud case from the Mixed-Phase Arctic Cloud Experiment is simulated with the Weather Research and Forecasting model with a prognostic ice-nucleating particle (INP) formulation to investigate the mechanisms sustaining the continuous ice formation. When the model is run with only primary ice production (PIP) processes, it needs 100 times the observed INP concentration to reproduce the observations. When a secondary ice production (SIP) process, i.e., droplet shattering when supercooled droplets freeze heterogeneously, is added, the model needs 50 times the observed INP concentration to reproduce the observations. Two factors are found to reduce the INP concentration required to reproduce the observations. First, as the cloud moves over the open ocean, the cloud top rises quickly, resulting in a cloud top entrainment rate of similar to 3.0 cm s(-1), which is 4 times as large as that in previous large-eddy simulations of the same case. More INPs can hence be entrained into the cloud. Second, INPs are recycled when ice crystals are completely sublimated below the cloud base. Sensitivity tests show that INP recycling reduces the required INP concentration by a factor of 4. In addition, offline tests show that another two SIP processes, i.e., droplet shattering when supercooled droplets collect small ice crystals and breakup during ice-ice collision, do not substantially contribute to the ice formation in this case. |
英文关键词 | Arctic mixed-phase cloud Ice formation Cloud top entrainment Ice-nucleating particle recycling Secondary ice production |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477686700007 |
WOS关键词 | LARGE-EDDY SIMULATION ; BULK MICROPHYSICS PARAMETERIZATION ; BOUNDARY-LAYER ; PART I ; SURFACE ; NUCLEATION ; PARTICLES ; NUCLEI ; PRECIPITATION ; SNOW |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187886 |
专题 | 地球科学 |
作者单位 | 1.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Beijing, Peoples R China; 2.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou, Fujian, Peoples R China; 3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 4.NOAA, Earth Syst Res Lab, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Fu, Shizuo,Deng, Xin,Shupe, Matthew D.,et al. A modelling study of the continuous ice formation in an autumnal Arctic mixed-phase cloud case[J]. ATMOSPHERIC RESEARCH,2019,228:77-85. |
APA | Fu, Shizuo,Deng, Xin,Shupe, Matthew D.,&Xue, Huiwen.(2019).A modelling study of the continuous ice formation in an autumnal Arctic mixed-phase cloud case.ATMOSPHERIC RESEARCH,228,77-85. |
MLA | Fu, Shizuo,et al."A modelling study of the continuous ice formation in an autumnal Arctic mixed-phase cloud case".ATMOSPHERIC RESEARCH 228(2019):77-85. |
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