IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Understanding the rapidity of subsurface storm flow response from a fracture-oriented shallow vadose through a new perspective
Peng, Zhao1,3; Pei, Zhao2,3; Chuan, Liang1; Li Tianyang1; Zhou Baojia1
Corresponding AuthorZhao Pei ; Liang Chuan
2017
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
Volume544Pages:628-639
SubtypeArticle
AbstractVelocity and celerity in hydrologic systems are controlled by different mechanisms. Efforts were made through joint sample collection and the use of hydrographs and tracers to understand the rapidity of the subsurface flow response to rainstorms on hourly time scales. Three deep subsurface flows during four natural rainstorm events were monitored. The results show that (1) deeper discharge was observed early in responding rainfall events and yielded a high hydrograph amplitude; (2) a ratio index, k, reflecting the dynamic change of the rainfall perturbation intensity in subsurface flow, might reveal inner causal relationships between the flow index and the tracer signal index. Most values of It were larger than 1 at the perturbation stage but approximated 1 at the no-perturbation stage; and (3) for statistical analysis of tracer signals in subsurface flows, the total standard deviation was 17.2, 11.9, 7.4 and 3.5 at perturbation stages and 4.4, 2.5, 1.1, and 0.95 at the non-perturbation stage for observed events. These events were 37 times higher in the former rather than the later, reflecting that the variation of tracer signals primarily occurred under rainfall perturbation. Thus, we affirmed that the dynamic features of rainfall have a key effect on rapid processes because, besides the gravity, mechanical waves originating from dynamic rainfall features are another driving factor for conversion between different types of rainfall mechanical energy. A conceptual model for pressure wave propagation was proposed, in which virtual subsurface flow processes in a heterogeneous vadose zone under rainfall are analogous to the water hammer phenomenon in complex conduit systems. Such an analogy can allow pressure in a shallow vadose to increase and decrease and directly influence the velocity and celerity of the flow reflecting a mechanism for rapid subsurface hydrologic response processes in the shallow vadose zone. (C) 2016 Published by Elsevier B.V.
KeywordSubsurface Flow Fast Response Mechanism Pressure Wave Celerity Velocity Shallow Vadose Zone
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.jhydrol.2016.12.007
WOS Subject ExtendedEngineering ; Geology ; Water Resources
Indexed BySCI
WOS KeywordPREFERENTIAL FLOW ; CATCHMENT HYDROLOGY ; WATER-FLOW ; HILLSLOPE ; TRANSPORT ; HYDROGRAPH ; MACROPORES ; RUNOFF ; MODEL ; ZONE
Language英语
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000392767000053
Funding OrganizationNational Natural Science Foundation of China(41471188 ; National Basic Research Program of the Ministry of Science and Technology of China(2013CB036401) ; 41271045)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18453
Collection山地表生过程与生态调控重点实验室
Affiliation1.Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610065, Peoples R China
2.Shangluo Univ, Coll Urban Rural Planning & Architectural Engn, Shangluo 726000, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Peng, Zhao,Pei, Zhao,Chuan, Liang,et al. Understanding the rapidity of subsurface storm flow response from a fracture-oriented shallow vadose through a new perspective[J]. JOURNAL OF HYDROLOGY,2017,544:628-639.
APA Peng, Zhao,Pei, Zhao,Chuan, Liang,Li Tianyang,&Zhou Baojia.(2017).Understanding the rapidity of subsurface storm flow response from a fracture-oriented shallow vadose through a new perspective.JOURNAL OF HYDROLOGY,544,628-639.
MLA Peng, Zhao,et al."Understanding the rapidity of subsurface storm flow response from a fracture-oriented shallow vadose through a new perspective".JOURNAL OF HYDROLOGY 544(2017):628-639.
Files in This Item:
File Name/Size DocType Version Access License
Understanding the ra(3278KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Peng, Zhao]'s Articles
[Pei, Zhao]'s Articles
[Chuan, Liang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Peng, Zhao]'s Articles
[Pei, Zhao]'s Articles
[Chuan, Liang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Peng, Zhao]'s Articles
[Pei, Zhao]'s Articles
[Chuan, Liang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Understanding the rapidity of subsurface storm flow response from a fracture-oriented shallow vadose through a new perspective.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.