Articles | Volume 24, issue 4
https://doi.org/10.5194/hess-24-1871-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-24-1871-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Apr 2020
Research article |
| 16 Apr 2020
| 16 Apr 2020
A novel approach for the assessment of morphological evolution based on observed water levels in tide-dominated estuaries
Huayang Cai
Institute of Estuarine and Coastal Research/State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China
Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
Ping Zhang
Institute of Estuarine and Coastal Research/State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China
Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
Erwan Garel
Centre for Marine and Environmental Research (CIMA), University of Algarve, Faro, Portugal
Pascal Matte
Meteorological Research Division, Environment and Climate Change Canada, Quebec, Canada
Shuai Hu
Institute of Estuarine and Coastal Research/State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China
Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
Feng Liu
CORRESPONDING AUTHOR
Institute of Estuarine and Coastal Research/State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China
Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
Qingshu Yang
Institute of Estuarine and Coastal Research/State and Local Joint Engineering Laboratory of Estuarine Hydraulic Technology, School of Marine Engineering and Technology, Sun Yat-sen University, Guangzhou, China
Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs/ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
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Related subject area
Subject: Coasts and Estuaries | Techniques and Approaches: Modelling approaches
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Coastal topography and hydrogeology control critical groundwater gradients and potential beach surface instability during storm surges
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Marc Diego-Feliu, Valentí Rodellas, Aaron Alorda-Kleinglass, Maarten Saaltink, Albert Folch, and Jordi Garcia-Orellana
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Alexey Katin, Dario Del Giudice, and Daniel R. Obenour
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Ahmed A. Nasr, Thomas Wahl, Md Mamunur Rashid, Paula Camus, and Ivan D. Haigh
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We analyse dependences between different flooding drivers around the USA coastline, where the Gulf of Mexico and the southeastern and southwestern coasts are regions of high dependence between flooding drivers. Dependence is higher during the tropical season in the Gulf and at some locations on the East Coast but higher during the extratropical season on the West Coast. The analysis gives new insights on locations, driver combinations, and the time of the year when compound flooding is likely.
Víctor M. Santos, Mercè Casas-Prat, Benjamin Poschlod, Elisa Ragno, Bart van den Hurk, Zengchao Hao, Tímea Kalmár, Lianhua Zhu, and Husain Najafi
Hydrol. Earth Syst. Sci., 25, 3595–3615, https://doi.org/10.5194/hess-25-3595-2021, https://doi.org/10.5194/hess-25-3595-2021, 2021
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We present an application of multivariate statistical models to assess compound flooding events in a managed reservoir. Data (from a previous study) were obtained from a physical-based hydrological model driven by a regional climate model large ensemble, providing a time series expanding up to 800 years in length that ensures stable statistics. The length of the data set allows for a sensitivity assessment of the proposed statistical framework to natural climate variability.
Wenyan Wu, Seth Westra, and Michael Leonard
Hydrol. Earth Syst. Sci., 25, 2821–2841, https://doi.org/10.5194/hess-25-2821-2021, https://doi.org/10.5194/hess-25-2821-2021, 2021
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Flood probability estimation is important for applications such as land use planning, reservoir operation, infrastructure design and safety assessments. However, it is a challenging task, especially in estuarine areas where floods are caused by both intense rainfall and storm surge. This study provides a review of approaches to flood probability estimation in these areas. Based on analysis of a real-world river system, guidance on method selection is provided.
Angelo Breda, Patricia M. Saco, Steven G. Sandi, Neil Saintilan, Gerardo Riccardi, and José F. Rodríguez
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Peisheng Huang, Karl Hennig, Jatin Kala, Julia Andrys, and Matthew R. Hipsey
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Our results conclude that the climate change in the past decades has a remarkable effect on the hydrology of a large shallow lagoon with the same magnitude as that caused by the opening of an artificial channel, and it also highlighted the complexity of their interactions. We suggested that the consideration of the projected drying trend is essential in designing management plans associated with planning for environmental water provision and setting water quality loading targets.
Jianrong Zhu, Xinyue Cheng, Linjiang Li, Hui Wu, Jinghua Gu, and Hanghang Lyu
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An extremely severe saltwater intrusion event occurred in February 2014 in the Changjiang estuary and seriously influenced the water intake of the reservoir. For the event cause and for freshwater safety, the dynamic mechanism was studied with observed data and a numerical model. The results indicated that this event was caused by a persistent and strong northerly wind, which formed a horizontal estuarine circulation, surpassed seaward runoff and drove highly saline water into the estuary.
Huayang Cai, Hubert H. G. Savenije, Erwan Garel, Xianyi Zhang, Leicheng Guo, Min Zhang, Feng Liu, and Qingshu Yang
Hydrol. Earth Syst. Sci., 23, 2779–2794, https://doi.org/10.5194/hess-23-2779-2019, https://doi.org/10.5194/hess-23-2779-2019, 2019
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Tide–river dynamics play an essential role in large-scale river deltas as they exert a tremendous impact on delta morphodynamics, salt intrusion and deltaic ecosystems. For the first time, we illustrate that there is a critical river discharge, beyond which tidal damping is reduced with increasing river discharge, and we explore the underlying mechanism using an analytical model. The results are useful for guiding sustainable water management and sediment transport in tidal rivers.
Pedro D. Barrera Crespo, Erik Mosselman, Alessio Giardino, Anke Becker, Willem Ottevanger, Mohamed Nabi, and Mijail Arias-Hidalgo
Hydrol. Earth Syst. Sci., 23, 2763–2778, https://doi.org/10.5194/hess-23-2763-2019, https://doi.org/10.5194/hess-23-2763-2019, 2019
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Guayaquil, the commercial capital of Ecuador, is located along the Guayas River. The city is among the most vulnerable cities to future flooding ascribed to climate change. Fluvial sedimentation is seen as one of the factors contributing to flooding. This paper describes the dominant processes in the river and the effects of past interventions in the overall sediment budget. This is essential to plan and design effective mitigation measures to face the latent risk that threatens Guayaquil.
Emanuele Bevacqua, Douglas Maraun, Ingrid Hobæk Haff, Martin Widmann, and Mathieu Vrac
Hydrol. Earth Syst. Sci., 21, 2701–2723, https://doi.org/10.5194/hess-21-2701-2017, https://doi.org/10.5194/hess-21-2701-2017, 2017
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We develop a conceptual model to quantify the risk of compound events (CEs), i.e. extreme impacts to society which are driven by statistically dependent climatic variables. Based on this model we study compound floods, i.e. joint storm surge and high river level, in Ravenna (Italy). The model includes meteorological predictors which (1) provide insight into the physical processes underlying CEs, as well as into the temporal variability, and (2) allow us to statistically downscale CEs.
Soufiane Haddout, Mohammed Igouzal, and Abdellatif Maslouhi
Hydrol. Earth Syst. Sci., 20, 3923–3945, https://doi.org/10.5194/hess-20-3923-2016, https://doi.org/10.5194/hess-20-3923-2016, 2016
Chiara Volta, Goulven Gildas Laruelle, Sandra Arndt, and Pierre Regnier
Hydrol. Earth Syst. Sci., 20, 991–1030, https://doi.org/10.5194/hess-20-991-2016, https://doi.org/10.5194/hess-20-991-2016, 2016
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A generic estuarine model is applied to three idealized tidal estuaries representing the main hydro-geometrical estuarine classes. The study provides insight into the estuarine biogeochemical dynamics, in particular the air-water CO2/sub> flux, as well as the potential response to future environmental changes and to uncertainties in model parameter values. We believe that our approach could help improving upscaling strategies to better integrate estuaries in regional/global biogeochemical studies.
M. Webber, M. T. Li, J. Chen, B. Finlayson, D. Chen, Z. Y. Chen, M. Wang, and J. Barnett
Hydrol. Earth Syst. Sci., 19, 4411–4425, https://doi.org/10.5194/hess-19-4411-2015, https://doi.org/10.5194/hess-19-4411-2015, 2015
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This paper demonstrates a method for calculating the probability of long-duration salt intrusions in the Yangtze Estuary and examines the impact of the Three Gorges Dam, the South-North Water Transfer Project and local abstractions on that probability. The relationship between river discharge and the intensity and duration of saline intrusions is shown to be probabilistic and continuous. That probability has more than doubled under the normal operating rules for those projects.
F. M. Achete, M. van der Wegen, D. Roelvink, and B. Jaffe
Hydrol. Earth Syst. Sci., 19, 2837–2857, https://doi.org/10.5194/hess-19-2837-2015, https://doi.org/10.5194/hess-19-2837-2015, 2015
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Suspended sediment concentration (SSC) levels are important indicator for the ecology of estuaries. Observations of SSC are difficult to make, therefore we revert to coupled 2-D hydrodynamic-sediment process-based transport models to make predictions in time (seasonal and yearly) and space (meters to kilometers). This paper presents calibration/validation of SSC for the Sacramento-San Joaquin Delta and translates SSC to turbidity in order to couple with ecology models.
J. I. A. Gisen, H. H. G. Savenije, and R. C. Nijzink
Hydrol. Earth Syst. Sci., 19, 2791–2803, https://doi.org/10.5194/hess-19-2791-2015, https://doi.org/10.5194/hess-19-2791-2015, 2015
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We revised the predictive equations for two calibrated parameters in salt intrusion model (the Van der Burgh coefficient K and dispersion coefficient D) using an extended database of 89 salinity profiles including 8 newly conducted salinity measurements. The revised predictive equations consist of easily measured parameters such as the geometry of estuary, tide, friction and the Richardson number. These equations are useful in obtaining the first estimate of salinity distribution in an estuary.
V. D. Vinh, S. Ouillon, T. D. Thanh, and L. V. Chu
Hydrol. Earth Syst. Sci., 18, 3987–4005, https://doi.org/10.5194/hess-18-3987-2014, https://doi.org/10.5194/hess-18-3987-2014, 2014
N. V. Manh, N. V. Dung, N. N. Hung, B. Merz, and H. Apel
Hydrol. Earth Syst. Sci., 18, 3033–3053, https://doi.org/10.5194/hess-18-3033-2014, https://doi.org/10.5194/hess-18-3033-2014, 2014
L. C. Bruce, P. L. M. Cook, I. Teakle, and M. R. Hipsey
Hydrol. Earth Syst. Sci., 18, 1397–1411, https://doi.org/10.5194/hess-18-1397-2014, https://doi.org/10.5194/hess-18-1397-2014, 2014
C. Ferrarin, M. Ghezzo, G. Umgiesser, D. Tagliapietra, E. Camatti, L. Zaggia, and A. Sarretta
Hydrol. Earth Syst. Sci., 17, 1733–1748, https://doi.org/10.5194/hess-17-1733-2013, https://doi.org/10.5194/hess-17-1733-2013, 2013
T. Sun, J. Xu, and Z. F. Yang
Hydrol. Earth Syst. Sci., 17, 751–760, https://doi.org/10.5194/hess-17-751-2013, https://doi.org/10.5194/hess-17-751-2013, 2013
M. Faneca Sànchez, J. L. Gunnink, E. S. van Baaren, G. H. P. Oude Essink, B. Siemon, E. Auken, W. Elderhorst, and P. G. B. de Louw
Hydrol. Earth Syst. Sci., 16, 4499–4516, https://doi.org/10.5194/hess-16-4499-2012, https://doi.org/10.5194/hess-16-4499-2012, 2012
E. F. Zhang, H. H. G. Savenije, S. L. Chen, and X. H. Mao
Hydrol. Earth Syst. Sci., 16, 3327–3339, https://doi.org/10.5194/hess-16-3327-2012, https://doi.org/10.5194/hess-16-3327-2012, 2012
A. van Buuren, L. Gerrits, and G. R. Teisman
Hydrol. Earth Syst. Sci., 14, 2243–2257, https://doi.org/10.5194/hess-14-2243-2010, https://doi.org/10.5194/hess-14-2243-2010, 2010
Cited articles
Brunier, G., Anthony, E. J., Goichot, M., and Provansal, M., and Dussouillez,
P.: Recent morphological changes in the Mekong and Bassac river channels,
Mekong delta: the marked impact of river-bed mining and implications for
delta destabilisation, Geomorphology, 224, 177–191,
https://doi.org/10.1016/j.geomorph.2014.07.009, 2014. a
Cai, H., Savenije, H. H. G., and Toffolon, M.: A new analytical framework for
assessing the effect of sea-level rise and dredging on tidal damping in
estuaries, J. Geophys. Res.-Oceans, 117, C09023, https://doi.org/10.1029/2012jc008000, 2012. a, b, c, d
Cai, H., Savenije, H. H. G., and Jiang, C.: Analytical approach for predicting fresh water discharge in an estuary based on tidal water level observations, Hydrol. Earth Syst. Sci., 18, 4153–4168,
https://doi.org/10.5194/hess-18-4153-2014, 2014. a
Cai, H., Toffolon, M., and Savenije, H. H. G.: An Analytical Approach to
Determining Resonance in Semi-Closed Convergent Tidal Channels, Coast.
Eng. J., 58, 1650009, https://doi.org/10.1142/S0578563416500091, 2016. a, b, c, d
Cai, H., Huang, J., Niu, L., Ren, L., Liu, F., Ou, S., and Yang, Q.: Decadal
variability of tidal dynamics in the Pearl River Delta: Spatial patterns,
causes, and implications for estuarine water management, Hydrol. Process., 32, 3805–3819, https://doi.org/10.1002/hyp.13291, 2019. a
Deng, J. and Bao, Y.: Morphologic evolution and hydrodynamic variation during the last 30 years in the LINGDING Bay, South China Sea, J. Coast. Res., 64, 1482–1489, 2011. a
Du, J. L., Yang, S. L., and Feng, H.: Recent human impacts on the
morphological evolution of the Yangtze River delta foreland: A review and new
perspectives, Estuar. Coast. Shelf Sci., 181, 160–169, https://doi.org/10.1016/j.ecss.2016.08.025, 2016. a
Friedrichs, C. T. and Aubrey, D. G.: Tidal Propagation in Strongly Convergent
Channels, J. Geophys. Research-Oceans, 99, 3321–3336, https://doi.org/10.1029/93jc03219, 1994. a
Gisen, J. and Savenije, H. H. G.: Estimating bankfull discharge and depth in
ungauged estuaries, Water Resour. Res., 564, 2298–2316,
https://doi.org/10.1002/2014WR016227, 2015. a
Guo, L., van der Wegen, M., Roelvink, J. A., and He, Q.: The role of river flow and tidal asymmetry on 1-D estuarine morphodynamics, J. Geophys. Res.-Earth, 119, 2315–2334, https://doi.org/10.1002/2014JF003110, 2014. a
Guo, L. C., van der Wegen, M., Wang, Z. B., Roelvink, D., and He, Q.: Exploring the impacts of multiple tidal constituents and varying river flow on long-term, large-scale estuarine morphodynamics by means of a 1-D model,
J. Geophys. Res.-Earth, 121, 1000–1022, https://doi.org/10.1002/2016JF003821, 2016. a
Hoitink, A. J. F., Wang, Z. B., Vermeulen, B., Huismans, Y., and Kastner, K.:
Tidal controls on river delta morphology, Nat. Geosci., 10, 637–645,
https://doi.org/10.1038/NGEO3000, 2017. a
Jay, D. A.: Green Law Revisited – Tidal Long-Wave Propagation in Channels with Strong Topography, J. Geophys. Res.-Oceans, 96, 20585–20598, https://doi.org/10.1029/91jc01633, 1991. a, b
Jiang, C., Pan, S. Q., and Chen, S. L.: Recent morphological changes of the
Yellow River (Huanghe) submerged delta: Causes and environmental implications, Geomorphology, 293, 93–107, https://doi.org/10.1016/j.geomorph.2017.04.036, 2017. a
Li, W.: Numerical modeling of tidal current on deep water channel project of
Nansha Harbor District of Guangzhou Port, J. Waterway Harbor, 29, 179–184, 2008. a
Liu, F., Yuan, L., Yang, Q., Ou, S. Y., Xie, L., and Cui, X.: Hydrological
responses to the combined influence of diverse human activities in the Pearl
River delta, China, Catena, 113, 41–55, https://doi.org/10.1016/j.catena.2013.09.003,
2014. a
Liu, F., Chen, H., Cai, H. Y., Luo, X. X., Ou, S. Y., and Yang, Q. S.: Impacts of ENSO on multi-scale variations in sediment discharge from the Pearl River to the South China Sea, Geomorphology, 293, 24–36,
https://doi.org/10.1016/j.geomorph.2017.05.007, 2017. a, b
Liu, F., Xie, R., Luo, X., Yang, L., Cai, H., and Yang, Q. S.: Stepwise
adjustment of deltaic channels in response to human interventions and its
hydrological implications for sustainable water managements in the Pearl River Delta, China, J. Hydrol., 573, 194–206, https://doi.org/10.1016/j.jhydrol.2019.03.063, 2019. a
Luan, H. L., Ding, P. X., Wang, Z. B., and Ge, J. Z.: Process-based
morphodynamic modeling of the Yangtze Estuary at a decadal timescale: Controls on estuarine evolution and future trends, Geomorphology, 290,
347–364, https://doi.org/10.1016/j.geomorph.2017.04.016, 2017. a, b
Mao, Q. W., Shi, P., Yin, K. D., Gan, J. P., and Qi, Y. Q.: Tides and tidal
currents in the Pearl River estuary, Cont. Shelf Res., 24, 1797–1808, https://doi.org/10.1016/j.csr.2004.06.008, 2004. a
Monge-Ganuzas, M., Cearreta, A., and Evans, G.: Morphodynamic consequences of
dredging and dumping activities along the lower Oka estuary (Urdaibai
Biosphere Reserve, southeastern Bay of Biscay, Spain), Ocean Coast. Manage., 77, 40–49, https://doi.org/10.1016/j.ocecoaman.2012.02.006, 2013. a
Pawlowicz, R., Beardsley, B., and Lentz, S.: Classical tidal harmonic analysis including error estimates in MATLAB using T-TIDE, Comput. Geosci.,
28, 929–937, https://doi.org/10.1016/S0098-3004(02)00013-4, 2002. a
Prandle, D.: How tides and river flows determine estuarine bathymetries, Prog. Oceanogr., 61, 1–26, https://doi.org/10.1016/j.pocean.2004.03.001, 2004. a
Prandle, D. and Rahman, M.: Tidal Response in Estuaries, J. Phys. Oceanogr., 10, 1552–1573, https://doi.org/10.1175/1520-0485(1980)010<1552:TRIE>2.0.CO;2, 1980. a
Savenije, H. H. G.: Salinity and Tides in Alluvial Estuaries, Elsevier, New York, 2005. a
Savenije, H. H. G.: Salinity and Tides in Alluvial Estuaries, completely
revised 2nd edition, available at: https://salinityandtides.com/ (last access: 10 December 2019), 2012. a
Schuttelaars, H. M., de Jonge, V. N., and Chernetsky, A.: Improving the
predictive power when modelling physical effects of human interventions in
estuarine systems, Ocean Coast. Manage., 79, 70–82,
https://doi.org/10.1016/j.ocecoaman.2012.05.009, 2013. a
Syvitski, J. P. M., Kettner, A. J., Overeem, I., Hutton, E. W. H., Hannon, M. T., Brakenridge, G. R., Day, J., Vorosmarty, C., Saito, Y., Giosan, L., and Nicholls, R. J.: Sinking deltas due to human activities, Nat. Geosci., 2, 681–686, https://doi.org/10.1038/NGEO629, 2009. a
Toffolon, M. and Savenije, H. H. G.: Revisiting linearized one-dimensional
tidal propagation, J. Geophys. Res.-Oceans, 116, C07007, https://doi.org/10.1029/2010jc006616, 2011.
a, b
van Maren, D. S., Oost, A. P., Wang, Z. B., and Vos, P. C.: The effect of land reclamations and sediment extraction on the suspended sediment concentration in the Ems Estuary, Mar. Geol., 376, 147–157,
https://doi.org/10.1016/j.margeo.2016.03.007, 2016. a
van Rijn, L. C.: Analytical and numerical analysis of tides and salinities in
estuaries; part I: tidal wave propagation in convergent estuaries, Ocean
Dynam., 61, 1719–1741, https://doi.org/10.1007/s10236-011-0453-0, 2011. a, b, c
Wang, Z. B., Van Maren, D. S., Ding, P. X., Yang, S. L., Van Prooijen, B. C.,
De Vet, P. L. M., Winterwerp, J. C., De Vriend, H. J., Stive, M. J. F., and
He, Q.: Human impacts on morphodynamic thresholds in estuarine systems, Cont. Shelf Res., 111, 174–183, https://doi.org/10.1016/j.csr.2015.08.009, 2015. a
Winterwerp, J. C. and Wang, Z. B.: Man-induced regime shifts in small estuaries – I: theory, Ocean Dynam., 63, 1279–1292,
https://doi.org/10.1007/s10236-013-0662-9, 2013. a, b, c
Wu, Z. Y., Milliman, J. D., Zhao, D. N., Zhou, J. Q., and Yao, C. H.: Recent
geomorphic change in LingDing Bay, China, in response to economic and urban
growth on the Pearl River Delta, Southern China, Global Planet. Change, 123, 1–12, https://doi.org/10.1016/j.gloplacha.2014.10.009, 2014. a, b, c
Wu, Z. Y., Saito, Y., Zhao, D. N., Zhou, J. Q., Cao, Z. Y., Li, S. J., Shang,
J. H., and Liang, Y. Y.: Impact of human activities on subaqueous topographic change in Lingding Bay of the Pearl River estuary, China, during 1955–2013, Scient. Rep., 6, 37742, https://doi.org/10.1038/Srep37742, 2016. a, b, c, d
Zhang, W., Ruan, X. H., Zheng, J. H., Zhu, Y. L., and Wu, H. X.: Long-term
change in tidal dynamics and its cause in the Pearl River Delta, China,
Geomorphology, 120, 209–223, https://doi.org/10.1016/j.geomorph.2010.03.031, 2010. a, b
Zhang, W., Xu, Y., Hoitink, A. J. F., Sassi, M. G., Zheng, J. H., Chen, X. W., and Zhang, C.: Morphological change in the Pearl River Delta, China, Mar. Geol., 363, 202–219, https://doi.org/10.1016/j.margeo.2015.02.012, 2015. a, b
Zhang, W., Cao, Y., Zhu, Y., Zheng, J., Ji, X., Xu, Y., Wu, Y., and Hoitink,
A.: Unravelling the causes of tidal asymmetry in deltas, J. Hydrol., 564, 588–604, https://doi.org/10.1016/j.jhydrol.2018.07.023, 2018. a
Short summary
Understanding the morphological changes in estuaries due to natural processes and human interventions is especially important with regard to sustainable water management and ecological impacts on the estuarine environment. In this contribution, we explore the morphological evolution in tide-dominated estuaries by means of a novel analytical approach using the observed water levels along the channel. The method could serve as a useful tool to understand the evolution of estuarine morphology.
Understanding the morphological changes in estuaries due to natural processes and human...
