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Artículos de revistas sobre el tema "Estuary process"

Autor: Grafiati

Publicado: 25 de mayo de 2024

Última modificación: 31 de julio de 2025

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1

van Buuren, A., and L. Gerrits. "Understanding and managing a complex estuary: the process towards more congruence between the physical system characteristics and the management system of the Westerschelde (Netherlands)." Hydrology and Earth System Sciences Discussions 5, no. 3 (2008): 1371–405. http://dx.doi.org/10.5194/hessd-5-1371-2008.

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Abstract. In this article, we expand on the relationship between the social processes of policymaking, management and research in the context of the Westerschelde estuary. This complex estuary system, located in Belgium and the Netherlands, has its own morphological and ecological characteristics and dynamics, and has three core functions: economically, it makes the port of Antwerp accessible; ecologically, it generates habitats for certain unique species; and in terms of safety, it prevents the hinterland from being flooded. We analyze how the social processes of policymaking, management and

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2

Chu, Ao, Zhengbing Wang, Huib De Vriend, and Marcel Stive. "A PROCESS-BASED APPROACH TO SEDIMENT TRANSPORT." Coastal Engineering Proceedings 1, no. 32 (2011): 83. http://dx.doi.org/10.9753/icce.v32.sediment.83.

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A process-based model for the Yangtze Estuary is constructed to study the sediment transport in the estuary. The proposed model covers the entire tidal region of the estuary, the Hangzhou Bay and a large part of the adjacent sea. The dominant processes, fluvial and tidal, are included in the model. The calibration of the model against extensive flow, water level, salinity and suspended sediment data shows a good representation of observed phenomena. With the present calibrated and validated model, the residual flow field and the residual sediment transport field are obtained. The residual sedi

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3

Firdaus, Ahmad M., Rajin Sihombing, and Arya P. Iwantoro. "Understanding the sedimentation process in Tanjung Carat, South Sumatra, Indonesia." IOP Conference Series: Earth and Environmental Science 1464, no. 1 (2025): 012020. https://doi.org/10.1088/1755-1315/1464/1/012020.

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Abstract South Sumatra Province is one of the provinces in Indonesia with high revenue compared to other provinces. However, they have faced a significant challenge with their logistics and transportation efficiency. Their main ports are within the river area which limits the size of the vessels it can accommodate. One of the major ports is Boom Baru Port, which is situated in Palembang, the capital of South Sumatra Province. It lies on the Musi River and has a draft of approximately −6 meters from the lowest water spring (LWS). To address this challenge, plans are underway to develop a new ma

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4

Ding, Yan, Keh-Chia Yeh, and Shao-Tang Wei. "INTEGRATED COASTAL PROCESS MODELING AND IMPACT ASSESSMENT OF FLOATING AND SEDIMENTATION IN COASTS AND ESTUARIES." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 18. http://dx.doi.org/10.9753/icce.v35.management.18.

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In this study, an integrated coastal process model was applied to assess impact of coastal flooding and sedimentation in an estuary in Taiwan and to evaluate performance of proposed engineering plans for flood prevention and sedimentation management. This in-situ validated model was used to simulate and predict hydrodynamic processes and morphological changes induced by multiple hydrological forcing such as river flood flows, waves, tides, and storms surges from rivers to the estuary and its adjacent coasts. Simulation results quantified coastal flooding risks, erosions, sedimentation, and cha

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5

Chen, Ruirui, Xuezhong Jiang, and Jing Chen. "Satellite Imagery Recording the Process and Pattern of Winter Temperature Field in Yangtze Estuary Interrupted by a Cold Wave." Atmosphere 14, no. 3 (2023): 479. http://dx.doi.org/10.3390/atmos14030479.

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Sea surface temperature (SST) is a key marine ecological metric. An optimized split-window algorithm was used to invert the Yangtze Estuary’s temperature field during a cold wave process. Additionally, MODIS SST inversion results were used to explore the effects of typical cold waves on the Yangtze Estuary’s temperature field through the application of a temperature profile analysis method and a multiscale, multidirectional edge detection algorithm. According to the findings, (1) the cold wave altered the temperature field characteristics and the temperature front intensity, morphology, and sp

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6

Pavel, Shekk, and Burhaz Maryna. "Change of spatial distribution in the ichiotocenosis of the shabolat estuary in the process of its anthropogenic transformation." ScienceRise:Biological Science, no. 4(19) (October 31, 2019): 4–9. https://doi.org/10.15587/2519-8025.2019.187247.

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Consequences of Shabolat estuary natural ecosystems transformation under the influence of anthropogenic factors are reflected in the composition of ichthyocenosis, changes in the basic population characteristics of the most mass species. <strong>The purpose of the work</strong> was to find out the spatial distribution of the Shabolat estuary most massive representatives of the ichthyocenosis in terms of its anthropogenic transformation. <strong>Material and methods.</strong> The material for the study was selected from industrial fishing gear in the spring, summer and autumn periods

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7

Yin, Yunzhu, Harshinie Karunarathna, and Dominic E. Reeve. "A Computational Investigation of Storm Impacts on Estuary Morphodynamics." Journal of Marine Science and Engineering 7, no. 12 (2019): 421. http://dx.doi.org/10.3390/jmse7120421.

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Global climate change drives sea level rise and changes to extreme weather events, which can affect morphodynamics of coastal and estuary systems around the world. In this paper, a 2D process-based numerical model is used to investigate the combined effects of future mean sea level and storm climate variabilities on morphological change of an estuary. Morphodynamically complex, meso-tidal Deben Estuary, located in the Suffolk at the east coast of the UK is selected as our case study site. This estuary has experienced very dynamic behaviors in history thus it might be sensitive to the future cl

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8

Dinh, Cham Dao. "Effects of hydrodynamical regime on morphological evolution at Cua Dai estuary and coastlines of Quang Nam province." VIETNAM JOURNAL OF EARTH SCIENCES 42, no. 2 (2020): 176–86. http://dx.doi.org/10.15625/0866-7187/0/0/15005.

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In recent years, accretion-erosion processes are frequently recorded in the estuary of Cua Dai, Quang Nam province. Most recently, however, sand bars are formed in the estuary not far from the place where the Inland Waterways Authority of Vietnam had previously dredged. The estuary continues to be accreted by sand. These have been drawing special attention of national and international scientists. While there is accretion at the estuary, eroded processes are strongly recorded along the coastlines of Quang Nam province. Therefore, it is necessary to carry out a study in the effects of the hydro

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9

Dinh, Cham Dao. "Effects of hydrodynamical regime on morphological evolution at Cua Dai estuary and coastlines of Quang Nam province." VIETNAM JOURNAL OF EARTH SCIENCES 42, no. 2 (2020): 176–86. http://dx.doi.org/10.15625/0866-7187/42/2/15005.

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In recent years, accretion-erosion processes are frequently recorded in the estuary of Cua Dai, Quang Nam province. Most recently, however, sand bars are formed in the estuary not far from the place where the Inland Waterways Authority of Vietnam had previously dredged. The estuary continues to be accreted by sand. These have been drawing special attention of national and international scientists. While there is accretion at the estuary, eroded processes are strongly recorded along the coastlines of Quang Nam province. Therefore, it is necessary to carry out a study in the effects of the hydro

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10

Wu, Dean, Yigang Wang, Yuchen Shao, and Guodong Hu. "Simulation and Statistical Analysis on the Transport Process of Salt Water Mass from the North Branch in the Yangtze River Estuary." Journal of Physics: Conference Series 2224, no. 1 (2022): 012065. http://dx.doi.org/10.1088/1742-6596/2224/1/012065.

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Abstract Based on the analysis of measured data, a two-dimensional hydrodynamic Salinity Transport Model in the Yangtze River estuary is established by using Mike21 model. This model is used to study the average daily distribution and changing patterns of the saline water mass in the South Branch that are from the North Branch while only the saltwater intrusion from the North Branch is considered. It determines the intrusion process of saline water mass from the North Branch and the area that are affected by saline water intrusion. In addition, through the research of salt water mass core movi

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11

Ariza-Colpas, Paola Patricia, Cristian Eduardo Ayala-Mantilla, Qaisar Shaheen, et al. "SISME, Estuarine Monitoring System Based on IOT and Machine Learning for the Detection of Salt Wedge in Aquifers: Case Study of the Magdalena River Estuary." Sensors 21, no. 7 (2021): 2374. http://dx.doi.org/10.3390/s21072374.

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This article contains methods, results, and analysis agreed for the development of an application based on the internet of things and making use of machine learning techniques that serves as a support for the identification of the saline wedge in the Magdalena River estuary, Colombia. As a result of this investigation, the process of identifying the most suitable telecommunications architecture to be installed in the estuary is shown, as well as the characteristics of the software developed called SISME (Estuary Monitoring System), and the results obtained after the implementation of predictio

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12

Shi, Honghua, Deliang Yu, Liting Yin, et al. "Source-sink process of microplastics in watershed-estuary-offshore system." Journal of Cleaner Production 338 (March 2022): 130612. http://dx.doi.org/10.1016/j.jclepro.2022.130612.

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13

Hong, Bo, Wenping Gong, Shiqiu Peng, et al. "Characteristics of vertical exchange process in the Pearl River estuary." Aquatic Ecosystem Health & Management 19, no. 3 (2016): 286–95. http://dx.doi.org/10.1080/14634988.2016.1205438.

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14

Tivy, Joy. "The geography of the Estuary and Firth of Clyde." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 90 (1986): 7–23. http://dx.doi.org/10.1017/s026972700000484x.

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SynopsisThe relative resource value and use of the Estuary and Firth of Clyde have varied through time. Until the eighteenth century the estuary was difficult to navigate. The firth, with its rich fishing grounds and sheltered harbours, was the focus of early settlement. However, increasing trade with the Americas, larger ships and growing competition between Glasgow and the more accessible ports of Greenock and Dumbarton stimulated plans to improve the navigability of the estuary. This was achieved by deepening and widening the main channel, a process which continued as the size of ships incr

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15

Hofmann, A. F., F. J. R. Meysman, K. Soetaert, and J. J. Middelburg. "Factors governing the pH in a heterotrophic, turbid, tidal estuary." Biogeosciences Discussions 6, no. 1 (2009): 197–240. http://dx.doi.org/10.5194/bgd-6-197-2009.

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Abstract. A method to quantify the influence of kinetically modelled biogeochemical processes on the pH of an ecosystem with time variable acid-base dissociation constants is presented and applied to the heterotrophic, turbid Scheldt estuary (SW Netherlands, N Belgium). Nitrification is identified as the main process governing the pH profile of this estuary, while CO2 degassing and advective-dispersive transport "buffer" the effect of nitrification. CO2 degassing accounts for the largest proton turnover per year in the whole estuary. There is a clear inverse correlation between oxygen turnover

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16

Chen, Changsheng, Haosheng Huang, Huichan Lin, Jack Blanton, Chunyan Li, and Francisco Andrade. "A Wet/Dry Point Treatment Method of FVCOM, Part II: Application to the Okatee/Colleton River in South Carolina." Journal of Marine Science and Engineering 10, no. 7 (2022): 982. http://dx.doi.org/10.3390/jmse10070982.

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The wet/dry point treatment method of FVCOM was applied to simulate the tide-induced flooding/drying process in the estuarine–tidal-creek–saltmarsh complex of the Okatee/Colleton River Estuary, South Carolina. The simulation results were compared with observed currents at three mooring sites and flooded areas observed from remote-sensing hypsometric measurements, demonstrating that FVCOM can robustly reproduce tidal and residual currents in the river and the flooding process onto the intertidal saltmarsh. The simulated flow field reveals that the Okatee/Colleton River Estuary is characterized

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17

Haron, Nuryazmeen Farhan, and Wardah Tahir. "Physical Model of Estuarine Salinity Intrusion into Rivers: A Review." Advanced Materials Research 905 (April 2014): 348–52. http://dx.doi.org/10.4028/www.scientific.net/amr.905.348.

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This paper reviews the physical models that had been used in order to conduct the experiment of estuarine salinity intrusion into rivers. Several studies used the physical models to get a better understanding of the estuary salinity mixing process and salt-wedge estuary characteristics along the flume. Besides, the laboratory investigations using the physical model also useful for verification purposes as discussed by previous researchers.

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18

Kurnosova, Anna S., and M. A. Shulgina. "Hydrochemical conditions and phytoplankton in the Kievka estuary (Japan Sea) with calculation of primary production by phosphorus utilization." Izvestiya TINRO 203, no. 4 (2023): 961–75. http://dx.doi.org/10.26428/1606-9919-2023-203-961-975.

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Spatial distribution of chemical parameters, as concentration of dissolved inorganic phosphorus (DIP), inorganic silica, nitrite nitrogen, nitrate nitrogen, ammonium nitrogen, total iron, dissolved oxygen, and biochemical oxygen demand (BOD5) is considered together with species composition, abundance and biomass of phytoplankton on the data of complex survey conducted in the estuary of the Kievka River in May 2020, with special attention to DIP and phytoplankton variations along the salinity gradient in the zone of mixing fresh and saline waters. In the lower Kievka, phytoplankton was studied

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19

Mubarak, M., R. Rifardi, A. Riyadi, A. Sulaiman, D. Yoswati, and M. A. Wibowo. "On the Salinity Distribution Induced Mixing at the Mouth of the Estuary." IOP Conference Series: Earth and Environmental Science 1118, no. 1 (2022): 012068. http://dx.doi.org/10.1088/1755-1315/1118/1/012068.

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Abstract Salinity is an essential parameter in estuaries because it determines the mixing process and distribution of biota in the estuary ecosystem. In the paper, we investigate the dynamics of salinity distribution in the Dumai estuary. Salinity and tidal data observation were carried out during the transitional season around the mouth of the estuary. We get the salinity time series data in a tidal cycle. We observed that the Formzhal number is about 0.239, indicating that the tidal type in Dumai estuary waters is mixed directional, tending to double a day, with the highest and lowest tides

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20

Shcherbak, V. I., N. Ye Semenyuk, P. S. Kutishchev, D. A. Lutsenko, and E. Sh Koziychuk. "Phytoplankton Characteristics in Various Ecosystems of the Dnieper River: Quantitative Indices, Dominant Complex, Response of Algae to the Influence of Certain Ecological Factors, and Water Quality." Hydrobiological Journal 61, no. 3 (2025): 3–29. https://doi.org/10.1615/hydrobj.v61.i3.10.

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In summertime, phytoplankton of the Kyiv Reservoir and the Dnieper River estuary was characterized by high cell numbers and biomass typical to highly trophic water bodies. At the same time, in the estuary the numbers and biomass of phytoplankton (in particular those of Cyanobacteria) were almost one order of magnitude higher than those registered in the reservoir, which is likely conditioned by a warmer climate of the estuary region. Not only water temperature, but also hydrological and hydrochemical factors influenced long-term dynamics of Cyanobacteria in the Kyiv Reservoir. In the estuary,

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21

Kim, Sung-Bo, and Doo-Pyo Kim. "Influence of Precipitation Conditions and Discharge Rates of River Estuary Barrages on Geomorphological Changes in an Estuarine Area." Applied Sciences 13, no. 17 (2023): 9661. http://dx.doi.org/10.3390/app13179661.

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Changes in coastal topography can affect the ecological environment and marine industries. In this study, we analyzed the patterns and causes of changes in shoreline and undersea topography in the Nakdong River estuary in the southeast of Republic of Korea using depth and shoreline surveys of the estuary, as well as data on discharge, suspended sediments, and precipitation in the Nakdong River basin. The results showed that erosion and sedimentation occurred repeatedly owing to complex factors such as the discharge of the estuary and invasion by open sea waves. However, no clear unilateral tre

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22

Khutornoi, Serhii, Mikhail O. Son, and Yuriy Kvach. "First record of two fish species (Actinopterygii) in the Sukhyi Lyman, northwestern Black Sea, Ukraine." Acta Ichthyologica et Piscatoria 53 (October 12, 2023): 157–62. http://dx.doi.org/10.3897/aiep.53.111525.

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Two new fish species were recorded while monitoring the fish fauna of Sukhyi Lyman (or Sukhyi Estuary), an estuary in the northwestern Black Sea (Ukraine) close to the marine port of Chornomorsk. A single pumpkinseed, Lepomis gibbosus (Linnaeus, 1758), was observed in May 1999, followed by numerous observations in May 2021, while a single peacock blenny, Salaria pavo (Risso, 1810), was photographed during snorkeling observations in September 2021. The estuary is a known hub for invasive alien species and other neobionts due to the presence of the marine port. The new population of pumpkinseed,

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23

MEDEIROS DE CARVALHO, ALEXANDRE, VANDA CLAUDINO-SALES, FRANCISCO GLEIDSON DA COSTA GASTÃO, et al. "ANTHROPOGENIC IMPACTS ON THE MORPHOLOGICAL EVOLUTION OF THE PACOTI ESTUARY, NORTHEAST BRAZIL." William Morris Davis - Revista de Geomorfologia 3, no. 1 (2022): 1–13. http://dx.doi.org/10.48025/issn2675-6900.v3n1.2022.142.

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The problem of anthropogenic occupation on the banks of estuaries and rivers has been a factor of concern and frequently addressed around the world. In the State of Ceará, this problem has been persistent, despite the reasonable environmental legislation dealing with this issue. Along the Pacoti River Estuary, this problem was addressed in this study and added to the analysis of the wind action in the evolution of this coastal environment. Thus, direct and indirect methods were applied, mainly based on field work and remote sensing based in the use of tools from a GIS platform. The results sho

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24

Spieckermann, M., A. Gröngröft, M. Karrasch, A. Neumann, and A. Eschenbach. "Oxygen Consumption of Resuspended Sediments of the Upper Elbe Estuary: Process Identification and Prognosis." Aquatic Geochemistry 28, no. 1 (2021): 1–25. http://dx.doi.org/10.1007/s10498-021-09401-6.

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AbstractThe resuspension of sediment leads to an increased release of nutrients and organic substances into the overlying water column, which can have a negative effect on the oxygen budget. Especially in the warmer months with a lower oxygen saturation and higher biological activity, the oxygen content can reach critical thresholds in estuaries like the upper Elbe estuary. Many studies have dealt with the nutrient fluxes that occur during a resuspension event. However, the sediment properties that influence the oxygen consumption potential (OCP) and the different biochemical processes have no

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25

Febrianti, I., R. Ratianingsih, and J. W. Puspita. "PERUBAHAN DISTRIBUSI MERKURI (Hg) TERHADAP WAKTU DI SEDIMEN SUNGAI POBOYA." JURNAL ILMIAH MATEMATIKA DAN TERAPAN 15, no. 1 (2018): 86–97. http://dx.doi.org/10.22487/2540766x.2018.v15.i1.10205.

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Poboya is illegal gold mining area at Palu City. The amalgamate process of gold extraction is prepared traditionally using mercury. Tailing of this process which contains mercury is throwed away to the ground. The mercury contain will infiltrate to the soil water and later on pollute Poboya’s river. Related to the mercury that categorized as dangerous material, this research purposes to investigate the mercury distribution changing at Poboya’s river sediment. The mercury distribution changing is investigated by modify the advection-diffusion equation model. The model was completed by the initi

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26

Zhang, X. Y., X. Chen, H. Deng, Y. Du, and H. Y. Jin. "Absorption features of chromophoric dissolved organic matter (CDOM) and tracing implication for dissolved organic carbon (DOC) in Changjiang Estuary, China." Biogeosciences Discussions 10, no. 7 (2013): 12217–50. http://dx.doi.org/10.5194/bgd-10-12217-2013.

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Abstract. Chromophoric dissolved organic matter (CDOM) represents the light absorbing fraction of dissolved organic carbon (DOC). Studies have shown that the optical properties of CDOM can be used to infer the distribution and diffusion characteristics of DOC in the estuary and coastal zone. The inversion of DOC concentrations from remote sensing has been implemented in certain regions. In this study we investigate the potential of tracing DOC from CDOM by the measurement of DOC, absorption spectrum of CDOM, Chla concentration, suspended sediment (SS), and salinity from cruises in different se

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27

Dong, Liang F., Cindy J. Smith, Sokratis Papaspyrou, Andrew Stott, A. Mark Osborn, and David B. Nedwell. "Changes in Benthic Denitrification, Nitrate Ammonification, and Anammox Process Rates and Nitrate and Nitrite Reductase Gene Abundances along an Estuarine Nutrient Gradient (the Colne Estuary, United Kingdom)." Applied and Environmental Microbiology 75, no. 10 (2009): 3171–79. http://dx.doi.org/10.1128/aem.02511-08.

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ABSTRACT Estuarine sediments are the location for significant bacterial removal of anthropogenically derived inorganic nitrogen, in particular nitrate, from the aquatic environment. In this study, rates of benthic denitrification (DN), dissimilatory nitrate reduction to ammonium (DNRA), and anammox (AN) at three sites along a nitrate concentration gradient in the Colne estuary, United Kingdom, were determined, and the numbers of functional genes (narG, napA, nirS, and nrfA) and corresponding transcripts encoding enzymes mediating nitrate reduction were determined by reverse transcription-quant

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28

Hill, Erin M., Brien A. Nicolau, and Paul V. Zimba. "History of Water and Habitat Improvement in the Nueces Estuary, Texas, USA." Texas Water Journal 2, no. 1 (2011): 97–111. http://dx.doi.org/10.21423/twj.v2i1.2104.

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Reservoir impoundments in the Nueces watershed (Texas, USA) have reduced Nueces River flows to the coast by more than 50% since the 1980s. Reductions in freshwater inflows prompted state and local managers, along with scientists, to embark on a 3-decade process of ecosystem-based restoration and habitat improvement in the Nueces Estuary. Current management efforts in the estuary have increased freshwater flow to the Rincon Bayou and habitat has been protected from land acquisition in the Nueces Delta. Restoring freshwater flow and acquiring land in the Nueces Delta was not easily accomplished

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Austin, Timothy, Ana Vila-Concejo, Andrew Short, and Roshanka Ranasinghe. "A Multi-Scale Conceptual Model of Flood-Tide Delta Morphodynamics in Micro-Tidal Estuaries." Geosciences 8, no. 9 (2018): 324. http://dx.doi.org/10.3390/geosciences8090324.

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Wave and tide induced sediment transport pathways and rates govern the morphological evolution of estuarine systems. An understanding of the morphodynamics of these systems is required to maintain their commercial, biological and recreational value. The morphodynamics of Port Stephens estuary, a micro-tidal estuary located on a wave dominated southeast coast of Australia were investigated using bathymetric surveys and current velocity data from several locations over the estuary. This provided detailed insight into the rates and direction of movement for the main sedimentary features of the sy

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30

Park, Sangjun, and Yongsik Sin. "Artificial Neural Network (ANN) Modeling Analysis of Algal Blooms in an Estuary with Episodic and Anthropogenic Freshwater Inputs." Applied Sciences 11, no. 15 (2021): 6921. http://dx.doi.org/10.3390/app11156921.

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The Youngsan River estuary, located on the southwest coast of South Korea, has transitioned from a natural to an artificial estuary since dike construction in 1981 separated freshwater and seawater zones. This artificial transition has induced changes in the physical properties and circulation within the estuary, which has led to hypoxia and algal blooms. In this study, an artificial neural network (ANN) model was employed to simulate phytoplankton variations, including algal blooms and size fractions based on chlorophyll a, using data obtained by long-term monitoring (2008–2018) of the seawat

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31

Nitsche, Frank O., Robin Bell, Suzanne M. Carbotte, William B. F. Ryan, and Roger Flood. "Process-related classification of acoustic data from the Hudson River Estuary." Marine Geology 209, no. 1-4 (2004): 131–45. http://dx.doi.org/10.1016/j.margeo.2004.05.023.

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Kuang, Cuiping, Huidi Liang, Jie Gu, et al. "Morphological process of a restored estuary downstream of a tidal barrier." Ocean & Coastal Management 138 (March 2017): 111–23. http://dx.doi.org/10.1016/j.ocecoaman.2017.01.012.

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33

Hongxia, Ming, Zan Shuaijun, Liu Jiwen, et al. "Promoting the denitrification process by heavy metals in Liaohe Estuary sediment." Marine Pollution Bulletin 203 (June 2024): 116408. http://dx.doi.org/10.1016/j.marpolbul.2024.116408.

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Ortiz-Araya, Scarleth, Jonathan Chacón-Guzmán, Rigoberto Víquez-Portugués, and Jeffrey A. Sibaja-Cordero. "Estructura espacial y temporal de la ictiofauna del Estero de Tamarindo, Parque Nacional Marino Las Baulas, Costa Rica." Revista de Biología Tropical 66, no. 1-1 (2018): 255. http://dx.doi.org/10.15517/rbt.v66i1.33298.

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Abstract: Spatial and temporal structure of the ichthyofauna of the Estuary of Tamarindo, Las Baulas National Marine Park, Costa Rica. Fish communities in mangrove areas have an ecological and socio-economic importance. The management in this kind of habitat is based on the data information about spatial and temporal patterns. The main goal of the study is determinate the spatial and temporal structure of the ichthic community from Tamarindo mangrove area. Six samplings trips were conducted from August 2009 to June 2010, at five mangrove stations using four different fishing gear. Also, enviro

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35

Fahimah, Nurul, Annisa Dwi Damayanti, Venny Ulya Bunga, and Haryo Mubiarto. "PROFIL VERTIKAL DAN HORIZONTAL PARAMETER SALINITAS, DHL, DAN TDS BERDASARKAN VARIASI MUSIMAN DI ESTUARI SUNGAI CITARUM." OSEANA 46, no. 1 (2021): 1–12. http://dx.doi.org/10.14203/oseana.2021.vol.46no.1.99.

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Salinity, electrical conductivity (EC), and Total Dissolved Solid (TDS) are parameters that pose an important role in the distributions of environmental pollution substances in the estuary. The difference in salinity, EC, and TDS concentration vertically (based on the depth in the water column) and horizontally (based on the distance from the estuary mouth) will affect the process of pollutant’s transportation and transformation in the estuary. On the other hand, seasonal variations will also affect parameters. Therefore, the information related to the vertical and horizontal profiles of salin

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36

Hu, Dechao, Min Wang, Shiming Yao, and Zhongwu Jin. "Study on the Spillover of Sediment during Typical Tidal Processes in the Yangtze Estuary Using a High-Resolution Numerical Model." Journal of Marine Science and Engineering 7, no. 11 (2019): 390. http://dx.doi.org/10.3390/jmse7110390.

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Because of special morphologies and complex runoff–tide interactions, the landward floodtide flows in Yangtze Estuary are observed to spill over from the North to the South Branches, carrying a lot of sediment. To quantitatively clarify the spillover problem, a two-dimensional numerical model using a high-resolution channel-refined unstructured grid is developed for the entire Yangtze Estuary from Datong to river mouths (620 km) and part of the East Sea. The developed model ensures a good description of the river-coast-ocean coupling, the irregular boundaries, and local river regimes in the Ya

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37

Moore, C. G. "Meiofauna of the industrialised estuary and Firth of Forth, Scotland." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 93, no. 3-4 (1987): 415–30. http://dx.doi.org/10.1017/s0269727000006850.

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SynopsisKnowledge concerning the meiofauna of the Forth is reviewed and extended by presentation of the results of new surveys of the intertidal and subtidal provinces of the estuary. Most of the published information concerns the influence of sewage pollution on shores of the firth. Before 1979, the meiofaunal communities of sandy beaches along the Edinburgh coastline exhibited reduced species richness, although certain taxa displayed enhanced densities. Improvements in the sewage treatment process have initiated a phase of meiofaunal recovery.In the estuary the salinity regime plays a key ro

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38

Gong, Wenping, Zhongyuan Lin, Yunzhen Chen, Zhaoyun Chen, and Heng Zhang. "Effect of winds and waves on salt intrusion in the Pearl River estuary." Ocean Science 14, no. 1 (2018): 139–59. http://dx.doi.org/10.5194/os-14-139-2018.

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Abstract. Salt intrusion in the Pearl River estuary (PRE) is a dynamic process that is influenced by a range of factors and to date, few studies have examined the effects of winds and waves on salt intrusion in the PRE. We investigate these effects using the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system applied to the PRE. After careful validation, the model is used for a series of diagnostic simulations. It is revealed that the local wind considerably strengthens the salt intrusion by lowering the water level in the eastern part of the estuary and increasing the bo

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39

Kusuda, T., T. Umita, K. Koga, T. Futawatari, and Y. Awaya. "Erosional Process of Cohesive Sediments." Water Science and Technology 17, no. 6-7 (1985): 891–901. http://dx.doi.org/10.2166/wst.1985.0188.

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Tests on erosion of the cohesive sediments in the Chikugo estuary in Japan were conducted. The results indicate that the decrease in the rate of erosion at constant shear stresses is caused rapidly 20 to 30 minutes after the start of tests and that tue decrease is caused by the increase in the solid fraction and the yield value of the seaiment remaining uneroded due to shear stress. In order to simulate the erosion process of sediments, a model in which the increase in the yield value of sediment is assumed to be proportional to the integration value of the absolute value of the sediment veloc

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40

Dalrino, Mukhlis, and Elvi Roza Syofyan. "Model Numerik 1D Penggerusan Endapan di Mulut Muara dengan Metode Beda Hingga." Jurnal Ilmiah Poli Rekayasa 10, no. 1 (2014): 10. http://dx.doi.org/10.30630/jipr.10.1.52.

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Sedimentation at estuary river have potency to cause floods because the narrowing of estuary as outlet. Sedimentation process can be caused by the so small river discharge at dry season so that cannot to flushing the sediment that happened at estuary mouth. When the rains arrive, river discharge which starting to big shall no long castaway to sea freely, so that causes floods in headwaters. Numerical simulation by using finite different method with Preissmann implicit scheme conducted to see ability of river discharge in early the rains to flushing the sediment in estuary mouth. Simulation was

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41

Hofmann, A. F., J. J. Middelburg, K. Soetaert, and F. J. R. Meysman. "pH modelling in aquatic systems with time-variable acid-base dissociation constants applied to the turbid, tidal Scheldt estuary." Biogeosciences 6, no. 8 (2009): 1539–61. http://dx.doi.org/10.5194/bg-6-1539-2009.

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Abstract. A new pH modelling approach is presented that explicitly quantifies the influence of biogeochemical processes on proton cycling and pH in an aquatic ecosystem, and which accounts for time variable acid-base dissociation constants. As a case study, the method is applied to investigate proton cycling and long-term pH trends in the Scheldt estuary (SW Netherlands, N Belgium). This analysis identifies the dominant biogeochemical processes involved in proton cycling in this heterotrophic, turbid estuary. Furthermore, information on the factors controlling the longitudinal pH profile along

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42

Shi, Jian, Chaofeng Tong, Jinhai Zheng, Chi Zhang, and Xiangyu Gao. "Kelvin-Helmholtz Billows Induced by Shear Instability along the North Passage of the Yangtze River Estuary, China." Journal of Marine Science and Engineering 7, no. 4 (2019): 92. http://dx.doi.org/10.3390/jmse7040092.

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Kelvin-Helmholtz (K-H) instability plays a significant role in mixing. To investigate the existence of K-H instability along the North Passage of the Yangtze River Estuary, the non-hydrostatic model NHWAVE is utilized to simulate the fresh-salt water mixing process along the North Passage of the Yangtze River Estuary. Using high horizontal resolution, the structure of K-H billows have been successfully captured within the Lower Reach of the North Passage. The K-H instability occurs between the max flood and high-water slack. The duration and length scale of the K-H billows highly depends on th

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43

Rusmana, Iman, and David B. Nedwell. "Denitrifier Still Has the Important Role in Nitrate Reduction to N2 Although It is Not the Predominant Population in the Estuarine Bacterial Community of Nitrate Reducing Bacteria." HAYATI Journal of Biosciences 31, no. 4 (2024): 630–40. http://dx.doi.org/10.4308/hjb.31.4.630-640.

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Denitrification and nitrate-ammonification are the responsible processes for nitrate removal in the estuaries. Temperature, nitrate and organic carbon availability are key factors controlling a rate of the nitrate reduction processes. This mixed cultures chemostat study investigates the competition ability and their nitrate reduction end-products of the bacteria isolated from an estuary at different temperatures. This study will help us to understand the seasonal nitrate reduction processes in an estuary. The experiments showed that a nitrate-ammonifier was the predominant process in the stead

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44

Bluteau, Cynthia Evelyn, Peter S. Galbraith, Daniel Bourgault, Vincent Villeneuve, and Jean-Éric Tremblay. "Winter observations alter the seasonal perspectives of the nutrient transport pathways into the lower St. Lawrence Estuary." Ocean Science 17, no. 5 (2021): 1509–25. http://dx.doi.org/10.5194/os-17-1509-2021.

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Abstract. The St. Lawrence Estuary connects the Great Lakes with the Atlantic Ocean. The accepted view, based on summer conditions, is that the estuary's surface layer receives its nutrient supply from vertical mixing processes. This mixing is caused by the estuarine circulation and tides interacting with the topography at the head of the Laurentian Channel. During winter when ice forms, historical process-based studies have been limited in scope. Winter monitoring has been typically confined to vertical profiles of salinity and temperature as well as near-surface water samples collected from

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45

Zhang, Wei, Shujie Lyu, Yuliang Zhu, and Xiaowen Chen. "A Coupled Model of the 1D River Network and 3D Estuary Based on Hydrodynamics and Suspended Sediment Simulation." Journal of Applied Mathematics 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/798579.

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River networks and estuaries are very common in coastal areas. Runoff from the upper stream interacts with tidal current from open sea in these two systems, leading to a complex hydrodynamics process. Therefore, it is necessary to consider the two systems as a whole to study the flow and suspended sediment transport. Firstly, a 1D model is established in the Pearl River network and a 3D model is applied in its estuary. As sufficient mass exchanges between the river network and its estuary, a strict mathematical relationship of water level at the interfaces can be adopted to couple the 1D model

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46

Wong, Kuo-Chuin. "Numerical Simulation of the Exchange Process within a Shallow Bar-Built Estuary." Estuaries 16, no. 2 (1993): 335. http://dx.doi.org/10.2307/1352506.

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47

Díez-Minguito, M., A. Baquerizo, M. Ortega-Sánchez, G. Navarro, and M. A. Losada. "Tide transformation in the Guadalquivir estuary (SW Spain) and process-based zonation." Journal of Geophysical Research: Oceans 117, no. C3 (2012): n/a. http://dx.doi.org/10.1029/2011jc007344.

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48

Sandeen, Lawrence R., Jeffrey D. Wetherington, David R. Blye, and Rao Sankarmanchi. "APPLICATION OF THE DQO PROCESS TO THE DELAWARE ESTUARY PCB TMDL PROGRAM." Proceedings of the Water Environment Federation 2005, no. 3 (2005): 192–211. http://dx.doi.org/10.2175/193864705783967034.

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49

Xie, Xiao, Ping Liang, and Qiwen Qian. "Sub-Seasonal Prediction of Sea-Gale Processes in the Yangtze River Estuary of China." Atmosphere 14, no. 4 (2023): 682. http://dx.doi.org/10.3390/atmos14040682.

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The sea-gale process (SGP) is a significant and disastrous weather event for the marine industry. However, the sub-seasonal predictability of SGP remains unclear. In this study, we investigate the influence of low-frequency oscillation on SGP in the Yangtze River estuary from November to April, and its implications for sub-seasonal prediction. We noted that SGPs have a close relationship with the 10~30 day low-frequency component of the 10-m wind speed in the Yangtze River estuary, and typically occur during the peak phase of the low-frequency oscillation. The 10~30 day low-frequency oscillati

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50

Stokes, Christopher, Timothy Poate, Gerd Masselink, Tim Scott, and Steve Instance. "New insights into combined surfzone, embayment, and estuarine bathing hazards." Natural Hazards and Earth System Sciences 24, no. 11 (2024): 4049–74. http://dx.doi.org/10.5194/nhess-24-4049-2024.

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Abstract. Rip currents are the single largest cause of beach safety incidents globally, but where an estuary mouth intersects a beach, additional flows are created that can exceed the speed of a typical rip current, significantly increasing the hazard level for bathers. However, there is a paucity of observations of surfzone currents at estuary mouth beaches, and our understanding and ability to predict how the bathing hazard varies under different wave and tide conditions are therefore limited. Using field observations and process-based XBeach modelling at an embayed, estuary mouth beach, we

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