Volume changes of Alpine sediment stores in a state of post-event disequilibrium and the implications for downstream hydrology and bed load transport
Volume changes of Alpine sediment stores in a state of post-event disequilibrium and the implications for downstream hydrology and bed load transport
复制标题
事件后不平衡状态下高山沉积物储量的变化及其对下游水文和底质输送的影响
DOI:
10.1080/00291950802095079
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Kutschera
中科院分区:
文献类型:
--
作者:
Morche;Schmidt;Sahling;Herkommer;Kutschera
The cascading system of a catchment in the Bavarian Alps is in a state of disequilibrium after an extreme dambreak flood event. Large parts of talus cones were undercut by fluvial erosion and act as additional sediment sources for fluvial sediment transport, demonstrating the geomorphic coupling between individual subsystems of a sediment cascade. Using terrestrial laser scanning (TLS), high resolution budgeting of sediment input from a talus cone was possible in the post-event field season. Further investigations of changes in the main sediment sources and direct measurements of bed load transport in the river enabled the authors to calculate a preliminary sediment balance. Total bed load flux leaving the catchment in the first post-event field season (year 2006) wasc.7900 tons (one-third of the mass exported by the dambreak flood). The input from the main sediment sources wasc.5061 t. Hence, the sediment balance has become negative; more sediment was exported from the catchment than stored within.
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DOI:
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发表时间:
2008
期刊:
影响因子:
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作者:
D. Morche;Markus Witzsche;K. Schmidt
通讯作者:
K. Schmidt
DOI:
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发表时间:
1979
期刊:
影响因子:
--
作者:
W. Emmett
通讯作者:
W. Emmett
DOI:
--
发表时间:
2006
期刊:
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作者:
Tobias Heckmann;David Morche;F. Haas;V. Wichmann;M. Becht
通讯作者:
M. Becht
DOI:
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发表时间:
2005
期刊:
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作者:
D. Hetherington;D. Milan
通讯作者:
D. Milan
DOI:
--
发表时间:
2006
期刊:
影响因子:
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作者:
L. Schrott;J. Götz;M. Geilhausen;D. Morche
通讯作者:
D. Morche