Assessment of morphological changes of Taleghan river in upstream of Taleghan dam

Khaleghi, Somaiyeh; Sadough, S H; Khodayari, Mahnaz

doi:10.52547/sustainearth.1.1.38

Cited by 1 publication

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, human intervention in natural conditions and the riparian zone intensifies bank erosion [17][18][19][20][21]. As a result of human intervention, dam construction affects the downstream, which can seriously change the hydro-morphological characteristics such as sediment transport pattern and flow discharge, which cause riverbed run narrowing and bank erosion [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Characterization and Analysis of River Morphology Using Long-Term Landsat Imagery and Stream Power

Arfa-Fathollahkhani

Ayyoubzadeh

Shafizadeh-Moghadam

et al. 2022

Water

View full text Add to dashboard Cite

Meandering rivers are among the most dynamic Earth-surface systems, which generally appear in fertile valleys, the most valuable lands for agriculture and human settlement. Landsat time series and morphological parameters are complementary tools for exploring river dynamics. Karun River is the most effluent and largest meandering river in Iran, which keeps the Karun’s basin economy, agriculture, and industrial sections alive; hence, investigating morphological changes in this river is essential. The morphological characteristics of Karun have undergone considerable changes over time due to several tectonic, hydrological, hydraulic, and anthropogenic factors. This study has identified and analyzed morphological changes in Karun River using a time series of Landsat imagery from 1985–2015. On that basis, morphological dynamics, including the river’s active channel width, meander’s neck length, water flow length, sinuosity index, and Cornice central angle, were quantitatively investigated. Additionally, the correlation between the stream power and morphological factors was explored using the data adopted from the hydrometric stations. The results show that the dominant pattern of the Karun River, due to the sinuosity coefficient, is meandering, and the majority of the river falls in the category of developed meander rivers. Moreover, the number of arteries reduced in an anabranch pattern, and the river has been migrating towards the downstream and eastern sides since 1985. This phenomenon disposes a change in the future that can be hazardous to the croplands and demands specific considerations for catchment management.

show abstract