DOI: 10.1007/s11069-020-04401-1
论文题名: Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area
作者: Li D. ; Zhang M. ; Wen Z. ; Chen B. ; Xue K. ; Li A.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 105, 期: 2 起始页码: 2307
结束页码: 2326
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169159
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Li D.,Zhang M.,Wen Z.,et al. Quantitative evaluation of characteristic precipitation event (CPE)’s effect on hydro-thermal state of active layer in Beiluhe area[J]. Natural Hazards,2021-01-01,105(2)