Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-1847-2017 |
Effects of atmospheric dynamics and aerosols on the fraction of supercooled water clouds | |
Li, Jiming1; Lv, Qiaoyi1; Zhang, Min1; Wang, Tianhe1; Kawamoto, Kazuaki2; Chen, Siyu1; Zhang, Beidou1 | |
2017-02-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Japan |
英文摘要 | Based on 8 years of (January 2008-December 2015) cloud phase information from the GCM-Oriented Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) Cloud Product (GOCCP), aerosol products from CALIPSO and meteorological parameters from the ERA-Interim products, the present study investigates the effects of atmospheric dynamics on the supercooled liquid cloud fraction (SCF) during nighttime under different aerosol loadings at global scale to better understand the conditions of supercooled liquid water gradually transforming to ice phase. Statistical results indicate that aerosols' effect on nucleation cannot fully explain all SCF changes, especially in those regions where aerosols' effect on nucleation is not a first-order influence (e.g., due to low ice nuclei aerosol frequency). By performing the temporal and spatial correlations between SCFs and different meteorological factors, this study presents specifically the relationship between SCF and different meteorological parameters under different aerosol loadings on a global scale. We find that the SCFs almost decrease with increasing of aerosol loading, and the SCF variation is closely related to the meteorological parameters but their temporal relationship is not stable and varies with the different regions, seasons and isotherm levels. Obviously negative temporal correlations between SCFs versus vertical velocity and relative humidity indicate that the higher vertical velocity and relative humidity the smaller SCFs. However, the patterns of temporal correlation for lower-tropospheric static stability, skin temperature and horizontal wind are relatively more complex than those of vertical velocity and humidity. For example, their close correlations are predominantly located in middle and high latitudes and vary with latitude or surface type. Although these statistical correlations have not been used to establish a certain causal relationship, our results may provide a unique point of view on the phase change of mixed-phase cloud and have potential implications for further improving the parameterization of the cloud phase and determining the climate feedbacks. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395126900001 |
WOS关键词 | OBSERVATIONAL CONSTRAINTS ; RADIATIVE PROPERTIES ; LIDAR MEASUREMENTS ; DUST AEROSOLS ; ICE CRYSTALS ; PHASE ; CLIMATE ; MODEL ; MODIS ; PATH |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30577 |
专题 | 地球科学 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Peoples R China; 2.Nagasaki Univ, Grad Sch Fisheries Sci & Environm Studies, Nagasaki, Japan |
推荐引用方式 GB/T 7714 | Li, Jiming,Lv, Qiaoyi,Zhang, Min,et al. Effects of atmospheric dynamics and aerosols on the fraction of supercooled water clouds[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(3). |
APA | Li, Jiming.,Lv, Qiaoyi.,Zhang, Min.,Wang, Tianhe.,Kawamoto, Kazuaki.,...&Zhang, Beidou.(2017).Effects of atmospheric dynamics and aerosols on the fraction of supercooled water clouds.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(3). |
MLA | Li, Jiming,et al."Effects of atmospheric dynamics and aerosols on the fraction of supercooled water clouds".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.3(2017). |
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