Analysis of event stratigraphy and hydrological reconstruction of low-frequency flooding: A case study on the Fenhe River, China

Li, Y; Huang, C; Ngo, HH; Yin, S; Dong, Z; Zhang, Y; Chen, Y; Lu, Y; Guo, W

Analysis of event stratigraphy and hydrological reconstruction of low-frequency flooding: A case study on the Fenhe River, China

Li, Y Huang, C Ngo, HH Yin, S Dong, Z Zhang, Y Chen, Y Lu, Y Guo, W

Permalink

Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of Hydrology, 2021, 603, pp. 127083-127083
Issue Date:: 2021-12-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

The embargo period expires on 31 Dec 2023

Adobe PDF

Download Accepted manuscriptAdobe PDF (11.05 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Li, Y
dc.contributor.author	Huang, C
dc.contributor.author	Ngo, HH
dc.contributor.author	Yin, S
dc.contributor.author	Dong, Z
dc.contributor.author	Zhang, Y
dc.contributor.author	Chen, Y
dc.contributor.author	Lu, Y
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858
dc.date.accessioned	2021-12-06T06:19:16Z
dc.date.available	2021-12-06T06:19:16Z
dc.date.issued	2021-12-01
dc.identifier.citation	Journal of Hydrology, 2021, 603, pp. 127083-127083
dc.identifier.issn	0022-1694
dc.identifier.uri	http://hdl.handle.net/10453/152151
dc.description.abstract	Low-frequency but high-magnitude flooding is becoming more frequent and can be well-documented by event stratigraphy. Low-frequency flooding deposits (LFDs) were discovered during a field investigation in the Holocene loess-palaeosol profile at Xucun (FHXC), which is situated at the front of the second terrace (T2) along the middle Fenhe River. A multi-prong approach combining geochemical and sedimentological indexes (i.e. concentrations of Cr, V, Ni, Co, Cu, Zn, Rb, Mn, Pb, and Sr, magnetic susceptibility, and particle size distribution) was used to distinguish the sedimentary characteristics and environmental dynamics of LFDs. These proxies show that LFDs were well sorted clayey silt and carried in suspension during high-energy extreme flooding currents with: firstly, a high water level; and secondly, the river having a relatively stagnant environment. Based on the flooding stage indicators, magnitudes of the low-frequency flooding discharges at the site were reconstructed to be 13,480–13,590 m3/s. The timing of the identified low-frequency flooding cluster episode was dated to 4200–3900 a BP by the Optically Stimulated Luminescence (OSL) dating technique. It agreed well with stratigraphic correlations of other existing well-dated flooding profiles in the middle reaches of the Yellow River. This case study presents long-term low-frequency flooding records and their sedimentary dynamics based on high spatial–temporal resolution systematic event stratigraphy, which advances understanding low-frequency flooding generation mechanism and improves upon predictions for occurrences and magnitudes of future extreme flooding.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of Hydrology
dc.relation.isbasedon	10.1016/j.jhydrol.2021.127083
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Engineering
dc.title	Analysis of event stratigraphy and hydrological reconstruction of low-frequency flooding: A case study on the Fenhe River, China
dc.type	Journal Article
utslib.citation.volume	603
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2023-12-31T00:00:00+1000Z
dc.date.updated	2021-12-06T06:19:14Z
pubs.publication-status	Accepted
pubs.volume	603

Abstract:

Low-frequency but high-magnitude flooding is becoming more frequent and can be well-documented by event stratigraphy. Low-frequency flooding deposits (LFDs) were discovered during a field investigation in the Holocene loess-palaeosol profile at Xucun (FHXC), which is situated at the front of the second terrace (T2) along the middle Fenhe River. A multi-prong approach combining geochemical and sedimentological indexes (i.e. concentrations of Cr, V, Ni, Co, Cu, Zn, Rb, Mn, Pb, and Sr, magnetic susceptibility, and particle size distribution) was used to distinguish the sedimentary characteristics and environmental dynamics of LFDs. These proxies show that LFDs were well sorted clayey silt and carried in suspension during high-energy extreme flooding currents with: firstly, a high water level; and secondly, the river having a relatively stagnant environment. Based on the flooding stage indicators, magnitudes of the low-frequency flooding discharges at the site were reconstructed to be 13,480–13,590 m3/s. The timing of the identified low-frequency flooding cluster episode was dated to 4200–3900 a BP by the Optically Stimulated Luminescence (OSL) dating technique. It agreed well with stratigraphic correlations of other existing well-dated flooding profiles in the middle reaches of the Yellow River. This case study presents long-term low-frequency flooding records and their sedimentary dynamics based on high spatial–temporal resolution systematic event stratigraphy, which advances understanding low-frequency flooding generation mechanism and improves upon predictions for occurrences and magnitudes of future extreme flooding.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/152151