气候变化领域集成服务门户(CCPortal): Spatiotemporal distributions of cloud properties over China based on Himawari-8 advanced Himawari imager data

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DOI	10.1016/j.atmosres.2020.104927
	Spatiotemporal distributions of cloud properties over China based on Himawari-8 advanced Himawari imager data
	Yang Y.; Zhao C.; Fan H.
发表日期	2020
ISSN	0169-8095
卷号	240
英文摘要	Using the Himawari-8 cloud product, this study investigated the seasonal, monthly, diurnal variations as well as spatial and vertical distributions of cloud properties over four typical regions, which are northwest (NW), north (N), southeast (SE) China and Tibetan Plateau (TP). The results show that the cloud occurs most frequently in spring and summer, and the seasonal average cloud top height (CTH) has clear seasonal differences while the cloud top temperature (CTT) is negatively correlated with CTH. A unimodal structure is found for the vertical distribution of occurrence frequency of CTH over SE and TP. By dividing clouds into four types, they show large differences in the probability of occurrence. The study also shows that the monthly cloud fraction (CF) is larger in summer and less in winter except in SE, the monthly CTH changes are relatively small in SE and TP, while the monthly CTT variation is the largest in TP. The total CF increases by 22%, 8%, 3%, and 16% from morning to afternoon in four study areas, respectively. The proportion of four types of cloud families has weak diurnal variation except over TP. In TP, the proportions of high cloud (HC) and low cloud (LC) have a diurnal variation of 30% and 22%, respectively. Note that the relative CF contribution (RCFC) of LC reaches the maximum values in the morning. With the enhancement of convection, the RCFC of DCC and HC increases rapidly. Associated with more active convections, the diurnal variations of CTH and CTT are larger in TP than those in other regions. The clouds in SE have a larger COT and smaller CTH than in other regions, implying more sufficient water supply with low clouds. © 2020 Elsevier B.V.
关键词	Earth atmosphere Meteorology Cloud fraction Cloud optical thickness Cloud top heights Cloud-top temperatures Diurnal variation Himawari-8 Water supply cloud cover diurnal variation height optical property satellite data seasonal variation spatial distribution temperature temporal distribution China Qinghai-Xizang Plateau
语种	英语
来源机构	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132493
推荐引用方式 GB/T 7714	Yang Y.,Zhao C.,Fan H.. Spatiotemporal distributions of cloud properties over China based on Himawari-8 advanced Himawari imager data[J]. Atmospheric Research,2020,240.
APA	Yang Y.,Zhao C.,&Fan H..(2020).Spatiotemporal distributions of cloud properties over China based on Himawari-8 advanced Himawari imager data.,240.
MLA	Yang Y.,et al."Spatiotemporal distributions of cloud properties over China based on Himawari-8 advanced Himawari imager data".240(2020).