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Impact of intermittent turbulent bursts on sediment resuspension and internal nutrient release in Lake Taihu, China

  • Chunyan Tang
  • Yiping LiEmail author
  • Kumud AcharyaEmail author
  • Wei Du
  • Xiaomeng Gao
  • Liancong Luo
  • Zhongbo Yu
Research Article
  • 58 Downloads

Abstract

Intermittent turbulent bursts have great impacts on sediment resuspension in coastal regions, tidal estuaries, and lakes. In this study, the role of turbulence structure on sediment resuspension was examined at Meiliang Bay of Lake Taihu, the third largest freshwater lake in China. The instantaneous three-dimensional velocity and suspended sediment concentrations were synchronously recorded by Acoustic Doppler Velocimetry (ADV) and Optical Backscatter Sensor (OBS) placed close to the lakebed. Statistical and quadrant analyses results revealed that the coherent structure contributed significantly to sediment particle entrainment. The intermittent burst events (dominant ejection and sweep) were the main energy source for sediment resuspension processes. 99.2% of turbulent sediment fluxes were triggered by ejection and sweep events, whereas the contributions coming from the outward interactions and inward interactions were relatively small. The large-amplitude burst events in the coherent structure dominated the influence on the sediment diffusion. Additionally, it was found that instantaneous sediment particle entrainment occurred earlier than the mean critical shear stress, which was induced by the stochastic nature of turbulence. The amount of sediment flux considering the turbulence characteristics was one or two larger magnitudes than the flux amount assessed by the time-averaged flow field, which indicated the critical shear stress approach might underestimate the sediment resuspension. Therefore, the influence of turbulence performance on sediment entrainment shall be seriously considered when evaluating sediment flux and internal nutrient loads in Lake Taihu.

Keywords

Acoustic inversion Sediment resuspension Turbulent coherent structure Quadrant analysis 

Notes

Funding information

The research was supported by the National Key R&D Program of China (2017YFC0405203), Fundamental Research Funds for the Central Universities (No. 2017B20514), Chinese National Science Foundation (51809102, 51579071), Fundamental Research Funds for the Central Public-Interest Research Institute (PM-zx703-201803-081), and the Major Science and Technology Program for Water Pollution Control and Treatment (2017ZX07202006-002).

References

  1. Bonnin J, Van Haren H, Hosegood P, Brummer GA (2006) Burst resuspension of seabed material at the foot of the continental slope in the Rockall Channel. Mar Geol 226:167–184CrossRefGoogle Scholar
  2. Cao Z, Xi H, Zhang X (1996) Turbulent bursting-based diffusion model for suspended sediment in open channel flows. J Hydraul Res 34(4):457–472CrossRefGoogle Scholar
  3. Cellino M, Lemmin U (2004) Influence of coherent flow structures on the dynamics of suspended sediment transport in open-channel flow. J Hydraul Eng 130:1077–1088CrossRefGoogle Scholar
  4. Chang WY, Constantinescu G, Tsai WF, Lien HC (2011) Coherent structures dynamics and sediment erosion mechanisms around an in-stream rectangular cylinder at low and moderate angles of attack. Water Resour Res 47:W12532CrossRefGoogle Scholar
  5. Chanson H, Trevethan M, Aoki S (2008) Acoustic Doppler velocimetry (ADV) in small estuary: field experience and signal post-processing. Flow Meas Instrum 19:307–313CrossRefGoogle Scholar
  6. Fugate DC, Friedrichs CT (2002) Determining concentration and fall velocity of estuarine particle populations using ADV, OBS and LISST. Cont Shelf Res 22:1867–1886CrossRefGoogle Scholar
  7. Gasith A (1975) Tripton sedimentation in eutrophic lakes-simple correction for the resuspended matter. Verh Int Ver Limnol 19:116–122Google Scholar
  8. Hardy RJ, Best JL, Lane SN, Carbonneau PE (2009) Coherent flow structures in a depth-limited flow over a gravel surface: the role of near-bed turbulence and influence of Reynolds number. J Geophys Res 114:F01003CrossRefGoogle Scholar
  9. Heathershaw AD (1974) “Bursting” phenomena in the sea. Nature 248:394–395CrossRefGoogle Scholar
  10. Heathershaw AD, Thorne PD (1985) Sea-bed noises reveal role of turbulent bursting phenomenon in sediment transport by tidal currents. Nature 316:339–342CrossRefGoogle Scholar
  11. Kassem H, Thompson CE, Amos CL, Townend IH (2015) Wave-induced coherent turbulence structures and sediment resuspension in the nearshore of a prototype-scale sandy barrier beach. Cont Shelf Res 109:78–94CrossRefGoogle Scholar
  12. Keylock CJ (2007) The visualization of turbulence data using a wavelet-based method. Earth Surf Process Landf 32(4):637–647CrossRefGoogle Scholar
  13. Kline SJ, Reynolds WC, Schraub FA, Runstadler PW (1967) The structure of turbulent boundary layers. J Fluid Mech 30:741–773CrossRefGoogle Scholar
  14. Kularatne S, Pattiaratchi C (2008) Turbulent kinetic energy and sediment resuspension due to wave groups. Cont Shelf Res 28:726–736CrossRefGoogle Scholar
  15. Li GY, Sheng LX (2011) Model of water-sediment regulation in Yellow River and its effect. Sci China Technol Sci 54(4):924–930CrossRefGoogle Scholar
  16. Li YP, Pang Y, Li Y (2007) Sediment resuspension flux under the hydrodynamics. Shuili Xuebao 5(38):558–564 (in Chinese)Google Scholar
  17. Li Y, Tang C, Wang J, Acharya K, Du W, Gao X, Luo L, Li H, Dai S, Mercy J, Yu Z (2017) Effect of wave-current interactions on sediment resuspension in large shallow Lake Taihu, China. Environ Sci Pollut Res 24(4):4029–4039CrossRefGoogle Scholar
  18. Li Y, Wei J, Gao X, Chen D, Weng S, Du W, Wang W, Wang J, Tang C, Zhang S (2018) Turbulent bursting and sediment resuspension in hyper-eutrophic Lake Taihu, China. J Hydrol 565:581–588CrossRefGoogle Scholar
  19. Noguchi K, Nezu I (2009) Particle-turbulence interaction and local particle concentration in sediment-laden open-channel flows. J Hydro Environ Res 3:54–68CrossRefGoogle Scholar
  20. Qin B (2009) Lake eutrophication: control countermeasures and recycling exploitation. Ecol Eng 35:1569–1573CrossRefGoogle Scholar
  21. Reardon KE, Bombardelli FA, Moreno-Casas PA, Rueda FJ, Schladow SG (2014) Wind-driven nearshore sediment resuspension in a deep lake during winter. Water Resour Res 50(11):8826–8844CrossRefGoogle Scholar
  22. Salim S, Pattiaratchi C, Tinoco R, Coco G, Hetzel Y, Wijeratne S, Jayaratne R (2017) The influence of turbulent bursting on sediment resuspension under unidirectional currents. Earth Surf Dynam 5(3):399–415CrossRefGoogle Scholar
  23. Shih W, Diplas P, Celik AO, Dancey C (2017) Accounting for the role of turbulent flow on particle dislodgement via a coupled quadrant analysis of velocity and pressure sequences. Adv Water Resour 101:37–48CrossRefGoogle Scholar
  24. Sumer BM, Oguz B (1978) Particle motions near the bottom in turbulent flow in an open channel. J Fluid Mech 86:109–127CrossRefGoogle Scholar
  25. Tennekes H, Lumley JL (1972) A first course in turbulence. MIT pressGoogle Scholar
  26. Thompson CEL, Couceiro F, Fones GR, Helsby R, Amos CL, Black K, Parker ER, Greenwood N, Statham PJ, Kelly-Gerreyn BA (2011) In situ flume measurements of resuspension in the North Sea. Estuar Coast Shelf Sci 94:77–88CrossRefGoogle Scholar
  27. van Rijn L, Walstra D, van Ormondt M (2007) Unified view of sediment transport by currents and waves. IV: application of morphodynamic model. J Hydraul Eng 133:776–793CrossRefGoogle Scholar
  28. Voulgaris G, Meyers ST (2004) Temporal variability of hydrodynamics, sediment concentration and sediment settling velocity in a tidal creek. Cont Shelf Res 24:1659–1683CrossRefGoogle Scholar
  29. Wallace JM (2016) Quadrant analysis in turbulence research: history and evolution. Annu Rev Fluid Mech 48:131–158CrossRefGoogle Scholar
  30. Wallace JM, Eckelmann H, Brodkey RS (1972) The wall region in turbulent shear flow. J Fluid Mech 54:39–48CrossRefGoogle Scholar
  31. Wei J, Li Y, Weng S, Huang D, Du W, Gao X, Wang W, Wang J, Zhang S, Jepkirui M, Nwankwegu AS, Norgbey E, Asmaa Q (2018) Determination of threshold parameter in quadrant splitting for identifying coherent motions in Lake Taihu. China J Soil Sediment:1–12Google Scholar
  32. Weng S, Li Y, Wei J, Du W, Gao X, Wang W, Wang J, Acharya K, Luo L (2018) Study on turbulence characteristics and sensitivity of quadrant analysis to threshold level in Lake Taihu. Environ Sci Pollut Res 25(15):14499–14510CrossRefGoogle Scholar
  33. Williams JJ, Bell PS, Thorne PD (2003) Field measurements of flow fields and sediment transport above mobile bed forms. J Geophys Res 108(C4):3109CrossRefGoogle Scholar
  34. Willmarth WW, Lu SS (1972) Structure of the Reynolds stress near the wall. J Fluid Mech 55:65–92CrossRefGoogle Scholar
  35. Yuan Y, Wei H, Zhao L, Cao Y (2009) Implications of intermittent turbulent bursts for sediment resuspension in a coastal bottom boundary layer: a field study in the western Yellow Sea, China. Mar Geol 263:87–96CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of EnvironmentHohai UniversityNanjingChina
  2. 2.South China Institute of Environmental Sciencesthe Ministry of Ecology and Environment of PRCGuangzhouChina
  3. 3.Division of Hydrologic SciencesDesert Research InstituteLas VegasUSA
  4. 4.Nanjing Institute of Environmental Sciencesthe Ministry of Ecology and Environment of PRCNanjingChina
  5. 5.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & LimnologyChinese Academy of SciencesNanjingChina
  6. 6.College of Hydrology and Water ResourcesHohai UniversityNanjingChina

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