Properties of suspended sediment concentrations in the Yellow River delta based on observation

Sediment suspended in the Yellow River delta provides significant physical, geological, and biogeochemical information. A time series of waves, currents, turbidities, temperatures, and tide levels were measured over a 134-d period using a submarine deployed tripod. A static model (multiple linear re...

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Bibliographic Details
Published in:Marine georesources & geotechnology 2018-01, Vol.36 (1), p.139-149
Main Authors: Zhu, Chaoqi, Liu, Xiaolei, Shan, Hongxian, Zhang, Hong, Shen, Zhicong, Zhang, Bowen, Jia, Yonggang
Format: Article
Language:English
Subjects:
Biogeochemistry
Current velocity
Fluvial sediments
In situ observation
Interactions
Mechanical stimuli
Regression models
Rivers
Sediment
Sediment concentration
Shape
Shear stress
Static models
superposed saw-tooth model
suspended sediment concentration
Suspended sediments
Tides
Wave height
waves and currents
Yellow River subaqueous delta
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Summary:Sediment suspended in the Yellow River delta provides significant physical, geological, and biogeochemical information. A time series of waves, currents, turbidities, temperatures, and tide levels were measured over a 134-d period using a submarine deployed tripod. A static model (multiple linear regression) and a dynamic model (superposed saw-tooth model) were constructed to express the interactions among wave height, current velocity, and suspended sediment concentration. The results documented a high suspended sediment concentration in this area with a mean of 2.24 g/L. A superposed saw-tooth model of suspended sediment concentration disturbed by waves and currents was developed. The shear stress results explained how episodic waves were responsible for the big saw-tooth shape and how currents accounted for the small saw-tooth shape.
ISSN:1064-119X
1521-0618
DOI:10.1080/1064119X.2017.1328715