The localized role of base level lowering on channel adjustment of tributary streams in the Trinity River basin downstream of Livingston Dam, Texas, USA

Musselman, Zachary A.

doi:10.1016/j.geomorph.2010.12.021

Cited by 20 publications

(13 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fish and Wildlife Service, personal commun.). Bank widening decreased upstream, which implies an upstream distance decay of response to a lowered base level, similar to that noted by other researchers (such as Musselman, 2011). The similarity in bank width between 1994 and 2010 suggests the lower White River may have entered a period of equilibrium relative to the changes that accompanied the anthropogenic modifications of the early 20th century.…”

Section: Interpretation Of Geomorphic Analysessupporting

confidence: 82%

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

King¹,

Keim²,

Hupp³

et al. 2016

Open-File Report

View full text Add to dashboard Cite

show abstract

Section: Interpretation Of Geomorphic Analysessupporting

confidence: 82%

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

King¹,

Keim²,

Hupp³

et al. 2016

Open-File Report

View full text Add to dashboard Cite

show abstract

“…However, Unde and Dhakal [54] argued that since the grain size for very large tributaries is likely to be similar in both channels, the effect of the tributary sediment input may be reduced. Other artificial factors that have been highlighted for their impacts on the confluence sediment transport include the construction of dams, sluice gates, bridges, and other additional restrictions of flow and sediment upstream [68][69][70]. The sediment influxes also affect the morphology of the confluence, with large debris fans capable of rerouting the main channel, while significant sediment inputs change the main channel slope [64,68,69].…”

Section: Sediment Transportmentioning

confidence: 99%

Flow, Sediment, and Morpho-Dynamics of River Confluence in Tidal and Non-Tidal Environments

Bilal

Xie

Zhai

2020

JMSE

View full text Add to dashboard Cite

River confluences are the key features of the drainage basins, as their hydrological, geomorphological, and ecological nature strongly influences the downstream river characteristics. The river reaches near the coastal zones, which also makes them under the influence of tidal currents in addition to their runoff. This causes a bi-directional flow and makes the study of confluences more interesting and complex in these areas. There is a reciprocal adjustment of flow, sediment, and morphology at a confluence, and its behaviors, differ greatly in tidal and non-tidal environments. Existing studies of the river junctions provide a good account of information about the hydrodynamics and bed morphology of the confluent areas, especially the unidirectional ones. The main factors which affect the flow field include the angle of confluence, flow-related ratios (velocity, discharge, and momentum) of the merging streams, and bed discordance. Hydraulically, six notable zones are identified for unidirectional confluences. However, for bi-directional (tidal) junctions, hydrodynamic zones always remain in transition but repeat in a cycle and make four different arrangements of flow features. This study discusses the hydrodynamics, sediment transport, morphological changes, and the factors affecting these processes and reviews the recent research about the confluences for these issues. All of these studies provide insights into the morpho-dynamics in tidal and non-tidal confluent areas.

show abstract

“…This has been documented on the Sabine River downstream of Toledo Bend dam (Phillips, ; Heitmuller, ); on the Trinity below Livingston Dam (Phillips et al ., ); and on Loco Bayou downstream of Lake Nacogdoches (Phillips, ). Incision also sometimes occurs in downstream tributaries due to the lowered base level of the main channel, as Musselman () documented for the Trinity River.…”

Section: Fluvial Tipping Pointsmentioning

confidence: 99%

Tipping points in Texas rivers

Phillips

2018

Earth Surf Processes Landf

View full text Add to dashboard Cite

Anticipating geomorphic tipping points requires that we learn from the past. Major geomorphic changes in coastal plain rivers of Texas resulting in river metamorphosis or regime shifts were identified and the major driving factors determined. Eleven such transformations – possible tipping points – were identified from contemporary observations, historical records, and Quaternary reconstructions. Two of the tipping points (between general aggrading and degrading valley states) are associated with reversals in a fundamental system control (sea‐level). One (stable or aggrading versus degrading channels) is associated with an abrupt change in sediment supply due to dam construction, and two others (changes from meandering to anastomosing channel patterns, and different anastomosis styles) are similarly related to changes in sediment supply and/or transport capacity, but with additional elements of historical contingency. Three tipping points are related to avulsions. One, from a regime dominated by re‐occupation of former channels to one dominated by progradation into flood basins, is driven by progressive long‐term filling of incised valleys. Another, nodal avulsions, is triggered by disturbances associated with tectonic uplift or listric faults. The third, avulsions and related valley metamorphosis in unfilled incised valleys, is due to fundamental dynamical instabilities within the fluvial system. This synthesis and analysis suggests that geomorphic tipping points are sometimes associated with general extrinsic or intrinsic (to the fluvial system) environmental change, independent of any disturbances or instabilities. Others are associated with natural (e.g. tectonic) or human (dams) disturbances, and still others with intrinsic geomorphic instabilities. This suggests future tipping points will be equally diverse with respect to their drivers and dynamics. Copyright © 2018 John Wiley & Sons, Ltd.

show abstract

The localized role of base level lowering on channel adjustment of tributary streams in the Trinity River basin downstream of Livingston Dam, Texas, USA

Cited by 20 publications

References 53 publications

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

Altered hydrologic and geomorphic processes and bottomland hardwood plant communities of the lower White River Basin

Flow, Sediment, and Morpho-Dynamics of River Confluence in Tidal and Non-Tidal Environments

Tipping points in Texas rivers

Contact Info

Product

Resources

About