Spatial–temporal fluvial morphology analysis in the Quelite river: It’s impact on communication systems

Ramos, Judith; Gracia, JesÃos

doi:10.1016/j.jhydrol.2011.05.007

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…However, whether there is blocking phenomena in the propagation process of the natural stimuli inside the river remains unknown. Previous fluvial geomorphology studies have found that upstream channel adjustment tends to transfer downstream (Ramos and Gracia 2012), and could lead to downstream riverbed deformation, such as the main stream migration, translocation of the main and secondary branches, scouring and silting of the point bar and central bar, and substantial riparian collapse (Jun et al 2012;Zhang et al 2015;Reid and Brierley 2015;Mossa 2016). In other words, the downstream river regime always corresponds to the specially appointed upstream river regime, thus the river interior adjustment will trigger a chain reaction over quite a long river reaches downstream.…”

Section: Introductionmentioning

confidence: 94%

“…Alluvial rivers are characterised by water and sediment transport channels that undergo constant change. River self-adjustment describes a fluvial process of riverbed deformation in response to sediment transport equilibrium failure caused by an artificial disturbance (Ramos and Gracia 2012). The reasons for river regime adjustment include both artificial and natural stimuli.…”

Section: Introductionmentioning

confidence: 99%

“…Artificial stimuli mainly include road or bridge construction (Armaş et al 2012), dam building, sand mining (Henshaw et al 2013), dredging, and canalisation (Hajdukiewicz et al 2016). Natural stimuli include storm flooding and riparian vegetation change (Ramos and Gracia 2012), channel avulsion (Cserkész-Nagy et al 2010;Kiss et al 2011), bedrock uplift caused by tectonic movement (Roy and Sahu 2015), river diversion caused by volcaniclastic sediments (Umazano et al 2014), etc. Implementation of measures to stabilise the river regime has always been the focus of river regulation and management (Greenwood et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…For example, the upper reach of the Quelite River in Mexico was a single-thread meandering river in 1986, whose thalweg experienced a chute cutoff during 1986-2003, whereby the curvature gradually decreased and the reach became a braided river accompanied by main channel avulsion in 2007. However, the lower reach flowed through the old river and formed a braided river in 1996-1999, before becoming a single-thread river in 2003 (Ramos and Gracia 2012). Another example is the Ahr River in Italy.…”

Section: Introductionmentioning

confidence: 99%

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Phenomena and characteristics of barrier river reaches in the middle and lower Yangtze River, China

You

Tang

2017

J Earth Syst Sci

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Alluvial river self-adjustment describes the mechanism whereby a river that was originally in an equilibrium state of sediment transport encounters some disturbance that destroys the balance and results in responses such as riverbed deformation. A systematic study of historical and recent aerial photographs and topographic maps in the Middle and Lower Reaches of the Yangtze River (MLYR) shows that river self-adjustment has the distinguishing feature of transferring from upstream to downstream, which may affect flood safety, waterway morphology, bank stability, and aquatic environmental safety over relatively long reaches downstream. As a result, it is necessary to take measures to control or block this transfer. Using the relationship of the occurrence time of channel adjustments between the upstream and downstream, 34 single-thread river reaches in the MLYR were classified into four types: corresponding, basically corresponding, basically not corresponding, not corresponding. The latter two types, because of their ability to prevent upstream channel adjustment from transferring downstream, are called barrier river reaches in this study. Statistics indicate that barrier river reaches are generally single thread and slightly curved, with a narrow and deep cross-sectional morphology, and without flow deflecting nodes in the upper and middle parts of reaches. Moreover, in the MLYR, barrier river reaches have a hydrogeometric coefficient of <4, a gradient >1.2‱, a silty clay content of the concave bank >9.5%, and a median diameter of the bed sediment >0.158 mm. The barrier river reach mechanism lies in that can effectively centralise the planimetric position of the main stream from different upstream directions, meaning that no matter how the upper channel adjusts, the main stream shows little change, providing relatively stable inflow conditions for the lower reaches. Regarding river regulation, it is necessary to optimise the benefits of barrier river reaches; long river reaches without barrier properties should be systematically planned and regulated; drastic bank collapse and sandbar shrinking should be urgently controlled to prevent the loss of barrier effects.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phenomena and characteristics of barrier river reaches in the middle and lower Yangtze River, China

You

Tang

2017

J Earth Syst Sci

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“…The Quelite River originates in the Sierra del Espinazo del Diablo ridge around 1,050 m.a.s.l. running through Los Naranjos village and six kilometers downstream through El Quelite village, from which this river takes its name (Ramos and Gracia, 2012).…”

Section: Quelite River Watershedmentioning

confidence: 99%

A proposal to integrate the legal definition and official delineation of watersheds in Mexico: eight model case studies

et al. 2019

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A hydrological basin is established as a geographic frame to officially determine surface water availability and is basic to confer or deny water rights. In Mexico, the legal definition of a hydrological basin is confusing and inconsistent with the official basin delineation published by the authority. This situation is demonstrated through the analysis of eight study cases located in Hydrological Region 10 Sinaloa. A proposal to define the legal term of hydrological basin, ensuring its consistency with official delineation of hydrological basins is presented. Geographic analysis was performed using QGIS software, by using official sources of Mexico and worldwide data bases. By law, in Mexico a water parting is defined as a borderline of maximum elevation. Nevertheless, the legal definition fails to explain hydrologic basin official boundaries where the basin limit is the location of a hydrometric station. Besides, the presence of this equipment does not mean that a waterbody exists in a hydrological basin, or that the delimited basin is an autonomous differentiated unit, as it is required by the legal definition. Other inconsistencies are presented dealing with the presence of inland water bodies as watershed limits and with groups of independent watersheds incongruously considered as a single basin. An amendment is proposed to harmonize this situation, with a minimum of changes in policy documents. The method proposed can be useful to analyze similar situations in other countries where discrepancies between the legal and official definitions of watershed delineation are also observed, or in countries where no official watershed definition has been established.

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Spatiotemporal variability of erosion and accretion in Ganges River using GIS and RS: a comparative study overlapping Rennell’s map of 1760s

Ety

Rashid

2019

Environ Dev Sustain

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Spatial–temporal fluvial morphology analysis in the Quelite river: It’s impact on communication systems

Cited by 9 publications

References 4 publications

Phenomena and characteristics of barrier river reaches in the middle and lower Yangtze River, China

Phenomena and characteristics of barrier river reaches in the middle and lower Yangtze River, China

A proposal to integrate the legal definition and official delineation of watersheds in Mexico: eight model case studies

Spatiotemporal variability of erosion and accretion in Ganges River using GIS and RS: a comparative study overlapping Rennell’s map of 1760s

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