气候变化领域集成服务门户(CCPortal): On the Differences in Precipitation Type Between the Arctic, Antarctica and Tibetan Plateau

CCPortal

DOI	10.3389/feart.2021.607487
	On the Differences in Precipitation Type Between the Arctic, Antarctica and Tibetan Plateau
	Yang, Diyi; Ding, Minghu; Dou, Tingfeng; Han, Wei; Liu, Weigang; Zhang, Jianyong; Du, Zhiheng; Xiao, Cunde
通讯作者	Ding, MH (通讯作者)，Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China. ; Ding, MH (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China.
发表日期	2021
EISSN	2296-6463
卷号	9
英文摘要	Under the effect of global warming, more precipitation will shift to rainfall in cryospheric regions. Considering the influence of the precipitation type on surface energy and mass cycles, it is important to determine the specific precipitation features and to classify the precipitation type in key areas correctly. We analyzed the monthly distribution, variations in each precipitation type's annual days, and trends based on daily precipitation and air temperature observations from six tripolar stations. The results indicated that snow dominated the precipitation type at Zhongshan station (69.4 degrees S, 76.4 degrees E) throughout the year, while the Greatwall station (62.2 degrees S, 59.0 degrees W) exhibited a relatively diverse precipitation type distribution and significant seasonal cycles. Compared to the Greatwall station, every precipitation type was less frequently encountered at the Barrow (71.3 degrees N, 156.8 degrees W), Coral Harbour (64.2 degrees N, 83.4 degrees W), Linzhi (29.6 degrees N, 94.5 degrees E), and Maqu stations (34 degrees N, 102.1 degrees E), in which all the sites demonstrated classical reverse seasonal variation. A consistent trend across the years was found regarding the trends of the different precipitation types, except at the Greatwall and Coral Harbour stations. Due to snow/rain conditions partly converting into sleet conditions, which may be related to air temperature changes and synoptic atmospheric activities, inconsistent increasing trends of the sleet days were observed compared to the snow/rain days. Furthermore, a hyperbolic parameterized model was also fitted to determine the air temperature threshold of precipitation type transitions in this paper. According to the threshold comparison results, a warm bias in the temperature threshold was found at the warm stations. We also proposed that high relative humidity and low freezing levels were the likely reasons for the ERA5 reanalysis datasets. Finally, this paper's fitted parameterized model was proven to perform better than the ERA5 reanalysis datasets through validation. This preliminary research provides observational evidence and possible interpretation of the mechanism of precipitation type changes in tripolar areas.
英文关键词	precipitation types; tri-polar regions; single temperature threshold; precipitation trend; freezing level
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000625814900001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254177
作者单位	[Yang, Diyi; Ding, Minghu] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; [Yang, Diyi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China; [Ding, Minghu; Dou, Tingfeng; Du, Zhiheng; Xiao, Cunde] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou, Peoples R China; [Dou, Tingfeng] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; [Han, Wei] Beijing Meteorol Observ Ctr, Beijing, Peoples R China; [Liu, Weigang] China Meteorol Adm, Inst Arid Meteorol, Lanzhou, Peoples R China; [Zhang, Jianyong] Meteorol Bur Gannan Tibetan Autonomous Prefecture, Hezuo, Peoples R China; [Xiao, Cunde] Beijing Normal Univ, State Key Lab Earth Surface & Resource Ecol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Diyi,Ding, Minghu,Dou, Tingfeng,et al. On the Differences in Precipitation Type Between the Arctic, Antarctica and Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,9.
APA	Yang, Diyi.,Ding, Minghu.,Dou, Tingfeng.,Han, Wei.,Liu, Weigang.,...&Xiao, Cunde.(2021).On the Differences in Precipitation Type Between the Arctic, Antarctica and Tibetan Plateau.FRONTIERS IN EARTH SCIENCE,9.
MLA	Yang, Diyi,et al."On the Differences in Precipitation Type Between the Arctic, Antarctica and Tibetan Plateau".FRONTIERS IN EARTH SCIENCE 9(2021).