Variation in reach-averaged bankfull discharge in the Yellow River Estuary in recent years

Abstract

The Yellow River Estuary (YRE) alternatively experienced channel aggradation and degradation during the period 1990–2016. To study the variation in flood discharge capacity during the process of river bed evolution, bankfull characteristic parameters were investigated on the basis of measured hydrological data and surveyed cross-sectional profiles, which was crucial for comprehending the processes and the key factors to cause these rapid changes. A reach-averaged method was presented in this study in order to calculate the characteristic bankfull parameters in the YRE, and this method integrated the geometric mean using the logarithmic transformation with a weighted mean based on the distance between the two successive sections. The reach-averaged bankfull parameters in the tail reach of the Yellow River Estuary (the Lijin-Xihekou reach) during the period 1990–2016 were then calculated. Calculated results indicated that the adoption of a concept of reach-averaged bankfull discharge was much more representative than the cross-sectional bankfull discharge, and the results also indicated that bankfull discharges decreased during the process of channel aggradation, and increased during the process of channel degradation. Finally, an empirical formula and a delayed response function were established between the reach-averaged bankfull discharge and the previous 4-year average fluvial erosion intensity during flood seasons, and both of them were adopted to reproduce the reach-averaged bankfull discharges, and calculated results showed high correlations (R²>0.8) of these two methods.

Graphical abstract

Keywords

channel adjustments / reach-averaged bankfull discharge / empirical relation / delayed response equation / Yellow River Estuary

References

[1] Cai X M, Rosegrant M W (2004). Optimal water development strategies for the Yellow River basin: balancing agricultural and ecological water demands. Water Resour Res, 40(8): W08S04

[2] Cao W H, Hu C H, Jiang N S, Hu H H, Deng L Y (2005). Experimental study on reactions of mouth bar of the Yellow River on the upstream river channel. J Sediment Res, (1): 1–6 (in Chinese)

[3] Castro J M, Jackson P L (2001). Bankfull discharge recurrence intervals and regional hydraulic geometry relationships: patterns in the Pacific Northwest, USA. J Am Water Resour Assoc, 37(5): 1249–1262

[4] Dai Z J, Fagherazzi S, Mei X F, Gao J J (2016). Decline in suspended sediment concentration delivered by the Changjiang (Yangtze) River into the East China Sea between 1956 and 2013. Geomorphology, 268: 123–132

[5] Dai Z, Mei X, Darby S E, Lou Y, Li W (2018). Fluvial sediment transfer in the Changjiang (Yangtze) river-estuary depositional system. J Hydrol (Amst), 566: 719–734

[6] Harman C, Stewardson M, Derose R (2008). Variability and uncertainty in reach bankfull hydraulic geometry. J Hydrol (Amst), 351(1–2): 13–25

[7] He L, Yan Y X, Yan M (2015). Analysis on the definition of bankfull stage by geometric criterion. J Hydroelectric Eng, 34(5): 114–118 (in Chinese)

[8] Hou Z J, You B H, Li S G (2009). Erosion and deposition characteristic analysis of tail reaches in the Yellow River Estuary in recent years. J Sediment Res, (1): 48–53 (in Chinese)

[9] Hu C H, Zhang Z H (2011). Relationship between adjustment of section configuration and flow-sediment of tail channels in the Yellow River Estuary. J Basic Sci & Eng, 19(4): 543–555 (in Chinese)

[10] Hu C, Chen J, GuoQ(2012). Shaping and maintaining a mediumsized main channel in the Lower Yellow River. Int J Sediment Res, 27(3): 259–270

[11] Hupp C R, Osterkamp W R (1996). Riparian vegetation and fluvial geomorphic processes. Geomorphology, 14(4): 277–295

[12] Jiang C, Pan S Q, Chen S L (2017). Recent morphological changes of the Yellow River (Huanghe) submerged delta: causes and environmental implications. Geomorphology, 293: 93–107

[13] Johnson P A, Heil T M (1996). Uncertainty in estimating bankfull conditions. J Am Water Resour Assoc, 32(6): 1283–1291

[14] Knighton D (1996). Fluvial Forms and Processes. New York: John Wiley & Sons: 94–96

[15] Leonardi N, Canestrelli A, Sun T, Fagherazzi S (2013). Effect of tides on mouth bar morphologyy and hydrodynamics. J Geophys Res Oceans, 118(9): 4169–4183

[16] Leopold L B, Wolman G M, Miller J P (1964). Fluvial Processes in Geomorphology. New York: W.H. Freeman and Co: 522–567

[17] Liang Z Y, Yang L F, Feng P L (2005). Relations of channel geometry to water and sediment rate for the Lower Yellow River. J Hydroelectric Eng, 24(6): 68–71 (in Chinese)

[18] Mei X, Dai Z, Darby S E, Gao S, Wang J, Jiang W (2018). Modulation of extreme flood levels by impoundment significantly offset by floodplain loss downstream of the Three Gorges Dam. Geophys Res Lett, 45(7): 3147–3155

[19] Navratil O, Albert M, Hérouin E, Gresillon J M (2006). Determination of bankfull discharge magnitude and frequency: comparison of methods on 16 gravel-bed river reaches. Earth Surf Process Landf, 31(11): 1345–1363

[20] Page K, Read A, FrazierP, MountN (2005). The effect of altered flow regime on the frequency and duration of bankfull discharge: Murrumbidgee River, Australia. River Res Appl, 21(5): 567–578

[21] Pickup G, Warner R F (1976). Effects of hydrologic regime on magnitude and frequency of dominant discharge. J Hydrol (Amst), 29(1–2): 51–75

[22] Riley S J (1972). Comparison of morphometric measures of bankfull. J Hydrol (Amst), 17(1–2): 23–31

[23] Tessler Z D, Vörösmarty C J, Grossberg M, Gladkova I, Aizenman H, Syvitski J P, Foufoula-Georgiou E (2015). Profiling risk and sustainability in coastal deltas of the world. Science, 349(6248): 638–643

[24] Wang K R, Huang H J, Zhang Y P (2008). Shrinkage on riverbed form of the tail of Yellow River Mouth in Qingshuigou course. Marine Geology Quate, 28(2): 15–22 (in Chinese)

[25] Williams G P (1978). Bank-full discharge of rivers. Water Resour Res, 14(6): 1141–1154

[26] Wohl E, Kuzma J, Brown N E (2004). Reach-scale channel geometry of a mountain river. Earth Surf Process Landf, 29(8): 969–981

[27] Wohl E, Wilcox A (2005). Channel geometry of mountain streams in New Zealand. J Hydrol (Amst), 300(1–4): 252–266

[28] Wolman M G (1955). The natural channel of Brandywine Creek, Pennsylvania. US Geol Surv Prof Pap: 271–289

[29] Wolman M G, Leopold L B (1957). River floodplains: some observations on their formation, Professional Paper 282-C. Washington, DC: US Geological Survey: 87–109.

[30] Wu B S, Wang G Q, Xia J Q, Fu X D, Zhang Y F (2008a). Response of bankfull discharge to discharge and sediment load in the Lower Yellow River. Geomorphology, 100(3–4): 366–376

[31] Wu B S, Xia J Q, Fu X D, Zhang Y F, Wang G Q (2008b). Effect of altered flow regime on bankfull area of the Lower Yellow River, China. Earth Surf Process Landf, 33(10): 1585–1601

[32] Xia J Q, Wu B S, Wang G Q, Wang Y P (2010). Estimation of bankfull discharge in the Lower Yellow River using different approaches. Geomorphology, 117(1–2): 66–77

[33] Xia J Q, Li X J, Zhang X L, Li T (2014). Recent variation in reach-scale bankfull discharge in the Lower Yellow River. Earth Surf Process Landf, 39(6): 723–734

[34] Xiong S L, Zeng J (2008). Study on classification index and fluvial processes of tidal estuaries. J Chinese Hydraulic Eng (12):1286–1295 (in Chinese)

[35] Yao S F, Chen S L, Zhao B, Pan S Q, Jiang C, Ji H Y (2017). Shoreline dynamics of the active Yellow River delta since the implementation of Water-Sediment Regulation Scheme: a remote-sensing and statistics-based approach. Estuar Coast Shelf Sci: S0272771417308-661.

[36] Yu X, Wang W Z, Li Y, Wang K R (2016). Processes of the Yellow River Estuary since operation of the Xiaolangdi Reservoir. J Sediment Res, (6): 8–11 (in Chinese)

[37] Zhang S Y, Xia J Q, Wan Z W, Li J (2018). Variations in planform and cross-sectional geometries of the Qingshuigou channel in the Yellow River Estuary (1976–2016). J Hydroelectric Eng , 38(1):63–74 (in Chinese).

[38] Zhang Z H, Hu C H (2007). Variation of the processes of flow and sediment and its effect on epeirogenesis of seacoast in the Yellow River estuary. Adv Water Sci, 18(3): 336–341 (in Chinese)

Acknowledgements

This investigation was supported by the Program of the National Key Research and Development Plan (No. 2017YFC0405501). It was also supported partly by the National Natural Science Foundation of China (Grant Nos. 51725902, 51579186 and 51809196). The constructive suggestions of the anonymous reviewers are gratefully acknowledged.

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