气候变化领域集成服务门户(CCPortal): Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area

CCPortal

DOI	10.1007/s11069-020-04401-1
	Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area
	Li D.; Zhang M.; Wen Z.; Chen B.; Xue K.; Li A.
发表日期	2021
ISSN	0921030X
起始页码	2307
结束页码	2326
卷号	105 期号:2
英文摘要	The climate change is significantly changing the hydro-thermal state of active layer at Qinghai–Tibet Plateau (QTP), which endangers permafrost environment. The degradation of permafrost would damage the linear engineering in cold regions; furthermore, the alternation of soil hydro-thermal state in the area of rugged terrain would lead to geo-hazards and then threaten the safety of local people. Global warming is widely accepted as a big threat to the ecological environment of arctic, subarctic and alpine regions, while the changing trend of precipitation around the world is still in dispute. Furthermore, the role of precipitation accompanied with global warming is unknown. Hence, in this study, the localized monitoring data from Beiluhe permafrost monitoring station at QTP, including atmospheric and soil hydro-thermal data, were utilized for further processing and comparative analysis. Firstly, the changing trend of precipitation here was investigated through the atmospheric data from 2003 to 2013. Thereafter, the hydro-thermal change of active layer was analyzed combined with precipitation events during this period. However, the raining pattern in QTP is characterized with continuity, short duration and small amount, basically referring to thawed season. The hydro-thermal change affected by corresponding raining event could be influenced by temporally nearby event in timescale. To differentiate the effect, the characteristic precipitation event (CPE) was selected through an elaborate algorithm. Subsequently, the hydro-thermal changes of active layer were reanalyzed in response to CPEs. Representative outcomes were chosen for the specific analysis under the influence from CPEs. Hence, under the circumstance of global warming, the effect from precipitation on the hydro-thermal properties of active layer was also obtained, and the possible harmful consequence induced by that was also discussed. Graphic abstract: [Figure not available: see fulltext.] © 2020, Springer Nature B.V.
关键词	Freezing/thawing index Global warming Increasing precipitation Permafrost degradation Rainwater infiltration Regional climate change
英文关键词	active layer; climate change; freeze-thaw cycle; global warming; hydrothermal activity; infiltration; permafrost; precipitation (climatology); precipitation intensity; quantitative analysis; rainwater; regional climate; terrain; China; Qinghai-Xizang Plateau
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206360
作者单位	State Key Laboratory of Ocean Engineering, School of Naval Architecture F, Ocean and Civil Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD. Minhang District, Shanghai, China; Department of Civil Engineering, Lanzhou University of Technology, Lanzhou, China; State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environmental and Resources, CAS, Lanzhou, China; School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, China; College of Civil Engineering, Sichuan Agricultural University, Chengdu, China; College of Civil Engineering, Shaoxing University, Shaoxing, China
推荐引用方式 GB/T 7714	Li D.,Zhang M.,Wen Z.,等. Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area[J],2021,105(2).
APA	Li D.,Zhang M.,Wen Z.,Chen B.,Xue K.,&Li A..(2021).Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area.Natural Hazards,105(2).
MLA	Li D.,et al."Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area".Natural Hazards 105.2(2021).