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Article: A rational method for estimating maximum discharge of a landslide-induced debris flow: A case study from southwestern China

TitleA rational method for estimating maximum discharge of a landslide-induced debris flow: A case study from southwestern China
Authors
KeywordsChina
Debris flow
Landslide
Maximum discharge
Peak discharge
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geomorph
Citation
Geomorphology, 2007, v. 84 n. 1-2, p. 44-58 How to Cite?
AbstractThis paper presents a rational method for estimating the maximum discharge of a landslide-induced debris flow. The method has five basic principles or steps: (a) to identify and measure representative bends and straight zones along a channel through which a debris flow went down; (b) to evaluate peak debris flow velocity in the bends; (c) to assess peak debris flow velocity in the straight channel zones; (d) to use the peak velocities to estimate the distribution of peak discharge along the entire channel; and (e) to find the maximum velocity and discharge of the debris flow. The method is illustrated with a case study of a landslide-induced debris flow at a mountainous region near Chengdu, southwestern China. The results show that the peak debris velocity was between 2.4 and 4.7 m s - 1 and the peak debris discharge was between 6.7 and 35.7 m 3 s - 1. The peak discharge initially increased at the upper portion of the channel, then decreased at the lower portion, indicating that the upper channel experienced erosion but the lower channel experienced deposition. The location with the maximum debris flow discharge corresponds to the point where the volume of the debris flow started to decrease. The method presented in this paper can help to prevent or mitigate debris flow hazards. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/71429
ISSN
2015 Impact Factor: 2.813
2015 SCImago Journal Rankings: 1.441
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChen, NShen_HK
dc.contributor.authorYue, ZQen_HK
dc.contributor.authorCui, Pen_HK
dc.contributor.authorLi, ZLen_HK
dc.date.accessioned2010-09-06T06:31:54Z-
dc.date.available2010-09-06T06:31:54Z-
dc.date.issued2007en_HK
dc.identifier.citationGeomorphology, 2007, v. 84 n. 1-2, p. 44-58en_HK
dc.identifier.issn0169-555Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/71429-
dc.description.abstractThis paper presents a rational method for estimating the maximum discharge of a landslide-induced debris flow. The method has five basic principles or steps: (a) to identify and measure representative bends and straight zones along a channel through which a debris flow went down; (b) to evaluate peak debris flow velocity in the bends; (c) to assess peak debris flow velocity in the straight channel zones; (d) to use the peak velocities to estimate the distribution of peak discharge along the entire channel; and (e) to find the maximum velocity and discharge of the debris flow. The method is illustrated with a case study of a landslide-induced debris flow at a mountainous region near Chengdu, southwestern China. The results show that the peak debris velocity was between 2.4 and 4.7 m s - 1 and the peak debris discharge was between 6.7 and 35.7 m 3 s - 1. The peak discharge initially increased at the upper portion of the channel, then decreased at the lower portion, indicating that the upper channel experienced erosion but the lower channel experienced deposition. The location with the maximum debris flow discharge corresponds to the point where the volume of the debris flow started to decrease. The method presented in this paper can help to prevent or mitigate debris flow hazards. © 2006 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/geomorphen_HK
dc.relation.ispartofGeomorphologyen_HK
dc.rightsGeomorphology. Copyright © Elsevier BV.en_HK
dc.subjectChinaen_HK
dc.subjectDebris flowen_HK
dc.subjectLandslideen_HK
dc.subjectMaximum dischargeen_HK
dc.subjectPeak dischargeen_HK
dc.titleA rational method for estimating maximum discharge of a landslide-induced debris flow: A case study from southwestern Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0169-555X&volume=84&spage=44&epage=58&date=2006&atitle=A+rational+method+for+estimating+maximum+discharge+of+a+landslide-induced+debris+flow:+A+case+study+from+southwestern+Chinaen_HK
dc.identifier.emailYue, ZQ:yueqzq@hkucc.hku.hken_HK
dc.identifier.authorityYue, ZQ=rp00209en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.geomorph.2006.07.007en_HK
dc.identifier.scopuseid_2-s2.0-33846330935en_HK
dc.identifier.hkuros125801en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846330935&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume84en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage44en_HK
dc.identifier.epage58en_HK
dc.identifier.isiWOS:000251891500003-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridChen, NSh=36909495900en_HK
dc.identifier.scopusauthoridYue, ZQ=7102782735en_HK
dc.identifier.scopusauthoridCui, P=7004791566en_HK
dc.identifier.scopusauthoridLi, ZL=8726157100en_HK

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