Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD028381 |
Cloud Top Phase Distributions of Simulated Deep Convective Clouds | |
Hoose, C.; Karrer, M.; Barthlott, C. | |
2018-09-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:18页码:10464-10476 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Space-based observations of the thermodynamic cloud phase are frequently used for the analysis of aerosol indirect effects and other regional and temporal trends of cloud properties; yet they are mostly limited to the cloud top layers. This study addresses the information content in cloud top phase distributions of deep convective clouds during their growing stage. A cloud-resolving model with grid spacings of 300 m and lower is used in two different setups, simulating idealized and semiidealized isolated convective clouds of different strengths. It is found that the cloud top phase distribution is systematically shifted to higher temperatures compared to the in-cloud phase distribution due to lower vertical velocities and a resultingly stronger Wegener-Bergeron-Findeisen process at the cloud top. Sensitivity studies show that heterogeneous freezing can modify the cloud top glaciation temperature (where the ice pixel fraction reaches 50%) and ice multiplication via rime splintering is visible in an early ice onset at temperatures around -10 degrees C. However, if the analyses are repeated with a coarsened horizontal resolution (above 1 km, similar to many satellite data sets), a significant part of this signal is lost, which limits the detectability of these microphysical fingerprints in the observable cloud top phase distribution. In addition, variation in the cloud dynamics also impacts the cloud phase distribution but cannot be quantified easily. |
英文关键词 | deep convective clouds ice formation phase partitioning |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447807300026 |
WOS关键词 | NUMERICAL WEATHER PREDICTION ; VERTICAL WIND SHEAR ; MIXED-PHASE ; THERMODYNAMIC PHASE ; MODEL DESCRIPTION ; CLIMATE MODELS ; COSMO MODEL ; ICE NUCLEI ; AEROSOL ; PARAMETERIZATION |
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/32329 |
专题 | 气候变化 |
作者单位 | Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Hoose, C.,Karrer, M.,Barthlott, C.. Cloud Top Phase Distributions of Simulated Deep Convective Clouds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(18):10464-10476. |
APA | Hoose, C.,Karrer, M.,&Barthlott, C..(2018).Cloud Top Phase Distributions of Simulated Deep Convective Clouds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(18),10464-10476. |
MLA | Hoose, C.,et al."Cloud Top Phase Distributions of Simulated Deep Convective Clouds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.18(2018):10464-10476. |
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