Study on the Coastal Suspended Sediment Transport Based on Multi-Source Satellite Remote Sensing Imagery

2013 ◽  
Vol 718-720 ◽  
pp. 371-376
Author(s):  
Yin Cai ◽  
Meng Guo Li ◽  
Ming Xiao Xie
Keyword(s):  
Remote Sensing ◽  
Sediment Transport ◽  
Suspended Sediment ◽  
Coastal Area ◽  
Satellite Remote Sensing ◽  
Wind Waves ◽  
Suspended Sediment Transport ◽  
Nearshore Zone ◽  
Retrieval Technique ◽  
Suspended Sediment Concentrations

Based on a series of multi-source satellite remote sensing imageries and wind parameters extracted from QuickSCAT satellite datasets, the surface suspended sediment concentrations (SSC) of the Zhuanghe coastal area, China was investigated using the retrieval technique. The results showed that the SSC of the Zhuanghe coastal area is higher in the nearshore zone, and gradually diminishes to the offshore. During the ebbing process, the range of high SSC zone is wider than that during the flooding process. This feature indicated that the suspended sediment transport is mainly determined by the ebb currents, and the sediment source comes from the nearshore shallow flats, where the sediments could be entrained by the wind waves and then diffuses offshore or alongshore with the tidal currents.

Suspended sediment transport mapped by satellite remote sensing

2008 ◽  
Author(s):  
P. Shanmugam ◽  
Y. H. Ahn ◽  
H. R. Yoo ◽  
B. C. Suk ◽  
J. H. Ryu
Keyword(s):  
Remote Sensing ◽  
Sediment Transport ◽  
Suspended Sediment ◽  
Satellite Remote Sensing ◽  
Suspended Sediment Transport

scholarly journals Numerical Study of Remote Sensed Dredging Impacts on the Suspended Sediment Transport in China’s Largest Freshwater Lake

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2449 ◽  
Author(s):  
Jianzhong Lu ◽  
Haijun Li ◽  
Xiaoling Chen ◽  
Dong Liang
Keyword(s):  
Remote Sensing ◽  
Sediment Transport ◽  
Suspended Sediment ◽  
Transport Model ◽  
Poyang Lake ◽  
Numerical Study ◽  
Point Sources ◽  
Freshwater Lake ◽  
Suspended Sediment Transport ◽  
Sediment Transport Model

As the largest freshwater lake in China, Poyang Lake plays an important role in the ecosystem of the Yangtze River watershed. The high suspended sediment concentration (SSC) has been an increasingly significant problem under the influence of extensive sand dredging. In this study, a hydrodynamic model integrated with the two-dimensional sediment transport model was built for Poyang Lake, considering sand dredging activities detected from satellite images. The sediment transport model was set with point sources of sand dredging, and fully calibrated and validated by observed hydrological data and remote sensing results. Simulations under different dredging intensities were implemented to investigate the impacts of the spatiotemporal variation of the SSC. The results indicated that areas significantly affected by sand dredging were located in the north of the lake and along the waterway, with a total affected area of about 730 km2, and this was one of the main factors causing high turbidity in the northern part of the lake. The SSC in the northern area increased, showing a spatial pattern in which the SSC varied from high to low from south to north along the main channel, which indicated close agreement with the results captured by remote sensing. In summary, this study quantified the influence of human induced activities on sediment transport for the lake aquatic ecosystem, which could help us to better understand the water quality and manage water resources.

3-D Simulation of the Suspended Sediment Transport in the Jiao jiang Estuary: Based on Validating by Remote Sensing Retrieval

2018 ◽  
Vol 85 ◽  
pp. 116-120 ◽  
Author(s):  
Cuizhuo Lu ◽  
Huan Li ◽  
Weiqi Dai ◽  
Jianfeng Tao ◽  
Fan Xu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Sediment Transport ◽  
Suspended Sediment ◽  
Suspended Sediment Transport

Stakeholder-driven development of a cloud-based, satellite remote sensing tool to monitor suspended sediment concentrations in major Bangladesh rivers

2020 ◽  
Vol 133 ◽  
pp. 104843
Author(s):  
Claire Beveridge ◽  
Faisal Hossain ◽  
Robin Kumar Biswas ◽  
AM Aminul Haque ◽  
Shahryar Khalique Ahmad ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Suspended Sediment ◽  
Satellite Remote Sensing ◽  
Suspended Sediment Concentrations

scholarly journals North to South Variations in the Suspended Sediment Transport Budget within Large Siberian River Deltas Revealed by Remote Sensing Data

2021 ◽  
Vol 13 (22) ◽  
pp. 4549
Author(s):  
Sergey Chalov ◽  
Kristina Prokopeva ◽  
Michał Habel
Keyword(s):  
Remote Sensing ◽  
Sediment Transport ◽  
Suspended Sediment ◽  
Aquatic Vegetation ◽  
River Sediments ◽  
The Arctic ◽  
Suspended Sediment Transport ◽  
Forest Steppe ◽  
Siberian River ◽  
River Deltas

This study presents detailed suspended sediment budget for the four Siberian river deltas, representing contrasting conditions between Northern and Southern environments. Two of the studied rivers empty their water and sediments into the marine located in the permafrost zone in the Arctic region (Lena and Kolyma), and the other two (Selenga and Upper Angara) flow into Lake Baikal located in the steppe and forest-steppe zone of Southern Siberia. For the first time, these poorly monitored areas are analyzed in terms of the long-term and seasonal changes of spatial patterns of suspended sediment concentrations (SSC) over distributaries systems. Remote sensing reflectance is derived from continuous time series of Landsat images and calibrated with the onsite field measurements of SSC. Seasonal variability of suspended sediment changes over deltas was captured for the period from 1989 to 2020. We identify significant variability in the sedimentation processes between different deltas, which is explained by particularities of deltas networks and geomorphology and the existence of specific drivers—continuous permafrost impact in the North and abundant aquatic vegetation and wetland-dominated areas in the South. The study emphasizes that differences exist between Northern and Southern deltas regarding suspended sediments transport conditions. Mostly retention of suspended sediment is observed for Southern deltas due to sediment storage at submerged banks and marshlands located in the backwater zone of the delta during high discharges. In the Northern (arctic) deltas due to permafrost impacts (melting of the permafrost), the absence of sub-aquatic banks and river to ocean interactions of suspended sediment transport is mostly increased downwards, predominantly under higher discharges and along main distributary channels. These results shine light on the geochemical functions of the deltas and patterns of sequestering various metals bound to river sediments.

Suspended Sediment Transport in Lianyungang Nearshore Area

2012 ◽  
Vol 170-173 ◽  
pp. 2204-2208
Author(s):  
Cun Yong Zhang
Keyword(s):  
Sediment Transport ◽  
Suspended Sediment ◽  
Bottom Layer ◽  
Water Levels ◽  
Suspended Sediment Transport ◽  
Nearshore Area ◽  
Tidal Pumping ◽  
Suspended Sediment Concentrations ◽  
Flood Current ◽  
Periodical Variation

Hydrological observations at 13-19 stations were conducted synchronically in Lianyungang nearshore area during the spring and half tide in winter and summer respectively. Data of suspended sediment concentrations (SSC), currents and water levels at observation stations were used to study the suspended sediment transport by the method of mechanism decomposition. The advection transport plays an important role during the whole observations, with the direction generally same to the flood current. The tidal pumping transport plays a significant role in the nearshore area, which is the main factor for the periodical variation of SSC. The direction of the tidal pumping transport is mainly toward the land, which indicates that the periodic component of SSC is transport to the land with the form of peaks in the bottom layer. The results may help to improve understanding of the coastal engineering and environmental applications related to sediment transport.

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