Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China

doi:10.1016/j.jhydrol.2018.08.067

	Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China
	Li, Yiping 1; Wei, Jin 1; Gao, Xiaomeng 2; Chen, Dong 3; Weng, Shenglin 1; Du, Wei 4; Wang, Wencai 5; Wang, Jianwei 6; Tang, Chunyan 5; Zhang, Shuangshuang 7
刊名	JOURNAL OF HYDROLOGY
	2018-10-01
卷号	565 页码:581-588
关键词	Turbulent bursting Sediment resuspension Quadrant analysis Lake Taihu
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2018.08.067
通讯作者	Chen, Dong(dchen@igsnrr.ac.cn)
英文摘要	Turbulent bursting plays a crucial role in sediment resuspension and transportation in many shallow lakes. This study analyzed the relationships between coherent structures and sediment resuspension in regions with and without intense wind waves in Lake Taihu. Acoustic Doppler Velocimetry (ADV) and Optical Backscatter Sensor (OBS) were used to measure field data sets including flow velocities and intense wind waves respectively. The results showed that the intermittent bursting events contributed significantly to the processes of momentum and sediment exchanges. Turbulent bursting effectively controlled the three patterns of sediment suspension during the 512 s observation period. In the windy region, the bursting motions, i.e. "ejection" and "sweep" events mainly accounted for the Reynolds stress generation and made major contribution to sediment resuspension. While in the current-dominant region, turbulent mixing from inward and outward interactions overwhelmed other processes. The vertical sediment fluxes reduced by an order of magnitude due to the less effect of wind waves and the lack of upwelling currents. It is therefore important to study turbulent coherent structures and sediment resuspension to understand the spatio-temporal and frequency characteristics of bursting events.
资助项目	National Key Research and Development Program of China[2017YFC0405203] ; National Key Research and Development Program of China[2016YFC0401703] ; Chinese National Science Foundation[51779072] ; Chinese National Science Foundation[51579071] ; Chinese National Science Foundation[41323001] ; Chinese National Science Foundation[51539003] ; Chinese National Science Foundation[41330751] ; Chinese National Science Foundation[51279192] ; National Science Funds for Creative Research Groups of China[51421006] ; program of Dual Innovative Talents Plan and Innovative Research Team in Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Fundamental Research Funds for the Central Universities
WOS关键词	LARGE SHALLOW LAKE ; NEAR-BED TURBULENCE ; OPEN-CHANNEL FLOW ; BOUNDARY-LAYER ; NUTRIENT RELEASE ; COHERENT MOTIONS ; TRANSPORT ; WIND ; DYNAMICS ; WALL
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000447477200048
资助机构	National Key Research and Development Program of China ; Chinese National Science Foundation ; National Science Funds for Creative Research Groups of China ; program of Dual Innovative Talents Plan and Innovative Research Team in Jiangsu Province ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52654]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, Dong
作者单位	1.Hohai Univ, Coll Environm, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China 2.Environm Sci Res & Design Inst Zhejiang Prov, Hangzhou 310000, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Minist Environm Protect PRC, Nanjing Inst Environm Sci, Nanjing 210042, Jiangsu, Peoples R China 5.Minist Environm Protect PRC, South China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China 6.Hydro China Huadong Engn Corp, Hangzhou 310014, Zhejiang, Peoples R China 7.Suzhou Univ Sci & Technol, Suzhou 215009, Peoples R China
推荐引用方式 GB/T 7714	Li, Yiping,Wei, Jin,Gao, Xiaomeng,et al. Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China[J]. JOURNAL OF HYDROLOGY,2018,565:581-588.
APA	Li, Yiping.,Wei, Jin.,Gao, Xiaomeng.,Chen, Dong.,Weng, Shenglin.,...&Zhang, Shuangshuang.(2018).Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China.JOURNAL OF HYDROLOGY,565,581-588.
MLA	Li, Yiping,et al."Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China".JOURNAL OF HYDROLOGY 565(2018):581-588.