A Framework for the Quantitative Testing of Landform Evolution Models

2013 ◽  
pp. 195-216 ◽  
Author(s):  
Garry R. Willgoose ◽  
Gregory R. Hancock ◽  
George Kuczera
Keyword(s):  
Landform Evolution

scholarly journals Geomorphic effects of recurrent outburst superfloods in the Yigong River on the southeastern margin of Tibet

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kaiheng Hu ◽  
Chaohua Wu ◽  
Li Wei ◽  
Xiaopeng Zhang ◽  
Qiyuan Zhang ◽  
...  
Keyword(s):  
Landslide Dam ◽  
Upstream Migration ◽  
One Dimensional ◽  
Landform Evolution ◽  
Outburst Floods ◽  
Stepwise Method ◽  
Large Landslide ◽  
Southeastern Margin ◽  
Channel Slope ◽  
The One

AbstractLandslide dam outburst floods have a significant impact on landform evolution in high mountainous areas. Historic landslide dams on the Yigong River, southeastern Tibet, generated two outburst superfloods > 105 m3/s in 1902 and 2000 AD. One of the slackwater deposits, which was newly found immediately downstream of the historic dams, has been dated to 7 ka BP. The one-dimensional backwater stepwise method gives an estimate of 225,000 m3/s for the peak flow related to the paleo-stage indicator of 7 ka BP. The recurrence of at least three large landslide dam impoundments and super-outburst floods at the exit of Yigong Lake during the Holocene greatly changed the morphology of the Yigong River. More than 0.26 billion m3 of sediment has been aggraded in the dammed lake while the landslide sediment doubles the channel slope behind the dam. Repeated landslide damming may be a persistent source of outburst floods and impede the upstream migration of river knickpoints in the southeastern margin of Tibet.

scholarly journals Geomorphological evolution of the polish part of the Sudetes - a review of results of recent research

Geografie ◽  
2003 ◽  
Vol 108 (3) ◽  
pp. 191-201
Author(s):  
Piotr Migoń
Keyword(s):  
Mountain Range ◽  
Joint Research ◽  
Landform Evolution ◽  
Geomorphic Evolution ◽  
Synthetic View ◽  
Geomorphological Evolution

This paper presents results of selected geomorphological studies published originally in Poland in the last decade and attempts to show the extent to which they complement or diverge from research carried out in the Czechia. It focuses on long-term landform evolution, the role of planation and differential tectonics, glacial and periglacial processes and identifies the scope for joint research efforts, which ultimately may lead towards a comprehensive, synthetic view of geomorphic evolution of the whole mountain range.

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