Application of MIKE FLOOD Model in Drainage Schemes for High-density Built-up Areas: Taking the Southern Region of Fuhai River in Shenzhen as an Example by YAN Hengheng, LU Qiaohui

“…When an extremely high tide occurs, through the closing of the estuary sluice and the opening of the estuary pumping station, the water level of the main river can be lowered, which solves the problems of flooding prevention and drainage. …”
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Lengths of Stay and Stopover Strategies of Western Sandpipers During Migration at Two Sites in British Columbia, Canada by Anne L. Blondin, Mark C. Drever, Scott A. Flemming, Wendy E. Easton, Mark Maftei, Yuri Zharikov, Nils Warnock, Erica Nol

“…Birds captured at Tofino had shorter tarsi, as well as higher mass during southward migration compared to Western Sandpipers captured at the Fraser River Estuary. We also assessed prey availability at the two stopover sites, and we found that invertebrate density was greater in Tofino compared to the Fraser River Estuary during northward migration. …”
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Temporal and Spatial Characteristics of Tidal Current in the Eastern Waters of Macao in Summer by FANG Shenguang, HUANG Chunhua, YU Fenghua, WANG Shijun, HE Yong

“…The eastern waters of Macao at the Pearl River Estuary are an important channel for water and sediment discharged by the west beach of Lingdingyang Estuary and Macao waterway.The measured data during the flood seasons shows that the waters feature semi-diurnal tidal currents,and the average velocity in this area is about 21~23 cm/s during the flood and 18~29 cm/s during the ebb.The flowing direction is stable,namely,N—NNW trending during the flood and S trending during the ebb,and tidal power is stronger in the south.The average velocity in the waters is mainly dependent on the tidal type,and the flood runoff mainly affects residual currents and tidal duration.A stagnant area is formed in the north of the waters during the flood,and the water and sediment in the south are transported outside the Lingdingyang Estuary.Wind on the sea surface has a significant impact on the vertical dynamic structure of flow in the range of 40% water depth,and residual flow direction in the range of 10% water depth near the sea surface has a good follow-up.During southwest wind,the maximum horizontal flow velocity gradient appears in the second flood and ebb stage and corresponds to the occurrence of the maximum sediment concentration in the tidal cycle.Due to the shallow water depth in the north of the waters,the bed shear gradient force is generally greater than that in the south.As a result,the sediment concentration observed in the north of the waters is significantly higher than that in the southeast.According to the comprehensive analysis,astronomical tides,flood runoff,and wind are the main controlling dynamic factors in the waters.The friction resistance of shallow water in the north is drastically larger than that in the south,which leads to a significant difference in tidal duration and phases of vertical floods and ebbs.As a consequence,the special vertical dynamic structure of convergence on the surface and dispersion at the bottom is formed in the waters,which is strengthened by massive freshwater runoffs during the flood seasons.This leads to the trend of surface diluted water drifting to the east and the invasion of the nearshore by bottom high-salt water.…”
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Contribution of GPS and GIS in the Study of the Dynamics of the Coastline and the Mouth of the Moulouya (Northeast Morocco) by Sbai Abdelkader, Mouadili Omar, Benrbia Khadija, Hlal Mohammed, Amghar Ahmed

“…This study assesses the utility of Global Positioning System (GPS) data in monitoring coastal dynamics, focusing on the Moulouya estuary. The research demonstrates the capability of GPS in capturing 3D estuarine kinematics with annual temporal resolution and sub-centimetre accuracy. …”
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Quid du port romain estuarien de Barzan (Charente-Maritime) ? by Vivien Mathé, Laurence Tranoy, Marion Druez, François Lévêque, Vincent Miailhe, Frédéric Pouget

“…The antique town of Barzan is located on the southwestern margins of the civitas Santonum, near the right bank of the Gironde estuary. The banks of the estuary were deeply eroded during the last glaciation and formed valleys that were subsequently flooded during the Holocene transgression. …”
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Pour de nouvelles rencontres en Pays de Caux by Boris Menguy

“…In 2014, a workshop organised by the urban planning agency of the region of Le Havre and the Seine estuary area focused on this question and made it possible to develop, with the valuable contributions of three fourth year students from the Ecole national supérieur du paysage (ENSP), approximately one hundred original proposals for fringe areas belonging to five landscape entities included in the master urban plan for the Le Havre Pointe de Caux estuary area. …”
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Construction and Verification of the Refined Forecast Model for Storm Surges Based on ADCIRC in Guangzhou by LUO Zhifeng, CHEN Gang, DAO Fuhai

“…Considering the joint influence of upstream water,astronomical tides,and storm surges,this paper constructs a refined forecast model for storm surges in Guangzhou based on ADCIRC.Driven by the Jelesnianski typhoon model,this model takes the upstream water and the forecast of tide levels in the open sea as the upper and lower boundary input and uses the irregularly triangular grids to simulate the topographic change of coastlines.The astronomical tides of six representative tide stations in cities near the Pearl River Estuary are compared with the measured water levels of six tide stations in Guangzhou under the influence of Typhoon Mangkhut and Hato for verification.The results show that the refinement degree of this forecast model can reach the hundred-meter level,and the maximum mean absolute error of astronomical tide fitting is less than 13 cm.The water increasing process,maximum water level value, and occurrence time of storm surges of the two typhoons are well fitted.All of these indicate that the model can basically reflect the astronomical tides and the water increasing process of storm surges along the Pearl River Estuary,which can provide a reference for the warning and high-resolution prediction of storm surges in Guangzhou.…”
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Changes in Sediment Flux from Hanjiang River into the Sea and Its Influence on Adjacent Sea Areas over the Last 60 Years by WANG Yufei, LIU Xiujuan, WANG Yang, WANG Wanhu, WANG Hongbing, YI Jiaji

“…In order to study the changes in sediment flux from the Hanjiang River into the sea and its environmental effects over the last 60 years,this paper uses the Mann-Kendall method to test the runoff discharge and sediment flux measured by the Chao'an hydrological station from 1958 to 2019,analyzes the main driving factors affecting the changes of sediment flux,and investigates the impact of sediment flux changes on adjacent sea areas.The results show that there is no significant change in runoff discharge for the Hanjiang River.The sediment flux into the sea has significantly decreased since 1998,and it has dropped more sharply since 2001.The large hydropower stations (Qingxi and Mianhuatan hydropower stations) in the Hanjiang River Basin are the main factors that lead to the significant decrease in the sediment flux into the sea.Since the sediments into the sea decreases greatly at the end of the 1990s,adjacent sea areas near the Hanjiang estuary have witnessed a transformation from slight sedimentation during 1971—2010 to slight erosion during 2010—2016 and a change of the delta shoreline from progradation (2.40~5.38 m/a) during 1830s—1964 to relative stability in 1980s.These findings indicate that the remarkable decrease in sediments from the Hanjiang River into the sea has greatly affected adjacent sea areas near the estuary.…”
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Spatial-temporal distribution of phytoplankton HAB species and contamination status of oyster toxins under intensive oyster farming in Jiangmen coasts, the South China Sea by Jian Zou, Yayuan Xiao, Jiaqi Su, Yang Liu, Peng Wu, Teng Wang, Lin Lin, Chunhou Li, Yu Liu, Yong Liu

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Numerical Simulation Study on Influence of Riverbed Changes on Saltwater Intrusion in Northwest River Delta by JIN Gaoyang, ZHU Sanhua, CAO Yihao

“…To study the changes in the riverbed of the Northwest River Delta and their relationship with saltwater intrusion,this paper builds a one-dimensional unsteady flow chlorine concentration mathematical model based on the collection and organization of previous research results,hydrological,meteorological,and river terrain data.The hydrodynamic and chlorine concentration verification results meet the relevant regulatory requirements and can be applied to calculate and analyze the impact of riverbed changes on saltwater intrusion.The research results are as follows.① From 1999 to 2016, the riverbed of the Northwest River Delta network was in an uneven downward cutting state,and the volume of the river continued to increase,resulting in a decrease in the resistance of the estuary to rising and falling tides.The upward tracing of high saltwater masses along the estuary was simpler,and the upward tracing of salt tides became increasingly severe.② The rising tide at each Koumen station increases,and the probability of removing freshwater from the saltwater boundary decreases.Under different inflow conditions in Sixianjiao,the average upward movement of the saltwater boundary at Modaomen Waterway is 3 735 m,and the average downward movement of the freshwater from Pinggang Pumping Station is 5.33%.The average upward movement of the saltwater boundary at Shawan Waterway is 2 369 m,and the average downward movement of the freshwater from Shawan No.1 Water Plant is 5.14%.These seriously affect the ecosystem and normal water intake demand in the estuarine area.The research results can provide basic support for the research and engineering design of water supply safety measures in the Northwest River Delta and estuarine areas.…”
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Microplastics contamination in two peripheral fish species harvested from a downstream river by M.R. Maulana, S. Saiful, Z.A. Muchlisin

“…In bagok catfish, microplastic abundance in samples from the river estuary and residential areas was almost the same, and it ranged from 7-8 particles/fish. …”
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Establishment of Regional Regulations For Coastal Area Rehabilitation As An Environmental Restoration Effort In Buru District by Popy Tuhulele, Arman Anwar, Armelia Febriyanti Waas

“…Kaiely Bay is located between 3º 15' 55” - 3º 22' 50” S and 127º 01'35”-127º 01'35” E and is an estuary in nature because it is influenced by the surrounding land, through runoff that enters through rivers that empties into the bay. …”
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Distribution, abundance, and size structure of the Pacific cupped oyster Magallana gigas in northern Patagonia by Leandro A. Hünicken, Raúl González, Dennis Landete, Maité A. Barrena, Juan F. Saad, Maite A. Narvarte

“…Estimated average abundances near the estuary were lower (range 1.8 10-3 ± 0.6 10-3 and 9 10-2 ± 3.4 10-2 ind. m-2) than BA (105 ± 2 ind. m-2). …”
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Ammonium, Nitrate, and Phosphate in Coastal Waters of Red River Biosphere Reserve, Vietnam by Luu Viet Dung, Nguyen Tai Tue, Tran Dang Quy, Mai Trong Nhuan

“…This study examines the fine-scale spatial variation of physicochemical parameters and nutrient concentrations in shrimp ponds and adjacent coastal waters from two wetland areas: Ba Lat Estuary (BLE) and Thai Thuy (TTW) in the Red River Delta, Vietnam. …”
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Les installations portuaires romaines d’Irun/Oiasso (Pays basque, Espagne) : entre équipement fonctionnel et façade urbaine by Mertxe Urteaga

“…The port facilities are contemporary to one another and prior to these constructions, the shores of the estuary were previously lacking in such infrastructure. …”
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Oysters for the Future: The Value of Science-Based Management in the Oyster Fishery by Erik Lovestrand

“… The eastern oyster (Crassostrea virginica) provides many important functions in coastal environments, from serving a crucial role in the estuary’s food web to improving water quality for beachgoers and wildlife. …”
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Oysters for the Future: Proper Oyster Culling Techniques Matter by Erik Lovestrand

“… The eastern oyster (Crassostrea virginica) provides many important functions in coastal environments, from serving a crucial role in the estuary’s food web to improving water quality for beachgoers and wildlife. …”
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Mosquito Control Impoundments by Jorge R. Rey, C. Roxanne Rutledge Connelly

“…Since the seventies, research has shown that impounding can have severe environmental impacts on the marshes and the adjoining estuary. So, over 12,600 hectares of the original 16,185 of impoundments have been rehabilitated in some fashion. …”
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Oysters for the Future: Oystering Rules, The Whys and Wherefores by Erik Lovestrand

“… The eastern oyster (Crassostrea virginica) provides many important functions in coastal environments, from serving a crucial role in the estuary’s food web to improving water quality for beachgoers and wildlife. …”
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Oysters for the Future: The Value of Science-Based Management in the Oyster Fishery by Erik Lovestrand

“… The eastern oyster (Crassostrea virginica) provides many important functions in coastal environments, from serving a crucial role in the estuary’s food web to improving water quality for beachgoers and wildlife. …”
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