Appraisal of hydro-ecology, geomorphology, and sediment behavior during low and high floods in the Lower Indus River Estuary

The riverine ecosystem is reliant on freshwater; however, morphological changes and sediment load destabilize the natural river system which deteriorates the ecology and geomorphology of the river ecosystem. The Lower Indus River Estuary (LIRE) geomorphological response was synthesized using satelli...

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Veröffentlicht in:Journal of water and climate change 2022-02, Vol.13 (2), p.889-907
Hauptverfasser: Boota, Muhammad Waseem, Yan, Chaode, Soomro, Shan-e-hyder, Li, Ziwei, Zohaib, Muhammad, Ijaz, Muhammad Wajid, Yousaf, Ayesha, Zafar, Muhammad Awais
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Sprache:eng
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Zusammenfassung:The riverine ecosystem is reliant on freshwater; however, morphological changes and sediment load destabilize the natural river system which deteriorates the ecology and geomorphology of the river ecosystem. The Lower Indus River Estuary (LIRE) geomorphological response was synthesized using satellite imagery (1986–2020) and evaluated against the field measurements. The estuary sinuosity index has an increasing trend from 1.84 (1986) to 1.92 (2020) and the estuary water area is increased from 101.41 km2 (1986) to 110.24 km2 (2020). The sediment load investigation at Kotri barrage indicated that the median size of bed material samples during the low-flow period falls between 0.100 and 0.203 mm and the bed material after the high flow has clay and silt (
ISSN:2040-2244
2408-9354
DOI:10.2166/wcc.2022.367