Introduction to the Special Issue on Sedimentary Processes Building a Tropical Delta Yesterday, Today, and Tomorrow: The Mekong System

Nittrouer, Charles A.; Mullarney, Julia C.; Ogston, A. S.

doi:10.5670/oceanog.2017.310

Cited by 11 publications

(4 citation statements)

References 51 publications

(74 reference statements)

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“…Scientists from five universities in Vietnam, the United States, and New Zealand measured water flows, characterized sediment deposits, and mapped vegetation patterns within and immediately offshore of the mangroves on the seaward fringe of Cu Lao Dung. This international collaboration between multiple institutes, coupled with riverine, shelf, remote-sensing, and modeling studies (see Nittrouer et al, 2017, in this issue), provided an exciting opportunity to obtain a comprehensive set of measurements over a range of scales. Experiments were conducted in September 2014 and March 2015, with each experiment lasting approximately two weeks.…”

Section: Field Experimentsmentioning

confidence: 99%

A Question of Scale: How Turbulence Around Aerial Roots Shapes the Seabed Morphology in Mangrove Forests of the Mekong Delta

Mullarney¹,

Henderson²,

Norris³

et al. 2017

Oceanog.

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Section: Field Experimentsmentioning

confidence: 99%

A Question of Scale: How Turbulence Around Aerial Roots Shapes the Seabed Morphology in Mangrove Forests of the Mekong Delta

Mullarney¹,

Henderson²,

Norris³

et al. 2017

Oceanog.

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“…We can infer that wind-driven waves and sea surface heights strong seasonality and it is controlled by currents and wind waves (Nittrouer et al, 2017;Ogston et al, 2017). Here sediments are delivered during the wet season (May to October) by the Mekong River, in the dry season, winds coming from northeast resuspend the sediment and transport it in the deltaic wetlands and along the southwest shoreline (Bryan et al, 2017).…”

Section: Relationship Between Tss and Physical Driversmentioning

confidence: 99%

Drivers of suspended sediment dynamics along the shorelines of the Yellow River Delta detected from satellite data

Jin,

Fagherazzi,

Fichot

et al. 2023

Earth Surf Processes Landf

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Total suspended solids (TSS) can be a useful indicator of environmental change in nearshore coastal environments. Understanding the mechanisms of TSS variations in response to environmental drivers is of broad interest for ecology and geomorphology. The Yellow River Delta (YRD) in China is a fragile coastal region that has been affected by human activities and climate change. Here, we investigated TSS along the YRD shoreline over two decades with time‐series satellite data (2002–2020). We observed that TSS concentration decreased significantly in nearshore waters (5‐m isobath) surrounding the YRD, especially in the LaiZhou Bay. During the same time period, wave height (WH) along the deltaic shoreline and sediment load from the Yellow River have decreased, while sea surface height (SSH) has displayed a positive trend. Our results indicate that WH and SSH play a major role in sediment resuspension and dispersion, while the YSD mildly affected TSS variability along the coast. Monthly bed shear stress triggered by waves was then computed using WH, wave period (WP), and SSH. Bed shear stress and TSS displayed a positive correlation. We concluded that seasonal oscillations in SSH in conjunction with wind waves are responsible for TSS variability in the shallow waters in front of the YRD.

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“…Finally, coastal erosion, which is increasing due to the decrease in river sediment inputs and storms, tsunamis, surges whose effects are amplified over regions with increasing populations [88,183], and impacted by anthropogenic activities, make this scientific topic become social issues. Natural processes of sediment transport must be considered in connection with dam impoundments, climate change (on sea level, temperature, precipitation, hydrologic and meteorological regimes) [184,185], land subsidence or uplift, salt intrusion, to estimate resiliency of deltas and their ability to cope with future impacts [183,186].…”

Section: A Targeted Research Toomentioning

confidence: 99%

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

Ouillon

2018

Water

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Scientific research on sediment dynamics in the coastal zone and along the littoral zone has evolved considerably over the last four decades. It benefits from a technological revolution that provides the community with cheaper or free tools for in situ study (e.g., sensors, gliders), remote sensing (satellite data, video cameras, drones) or modelling (open source models). These changes favour the transfer of developed methods to monitoring and management services. On the other hand, scientific research is increasingly targeted by public authorities towards finalized studies in relation to societal issues. Shoreline vulnerability is an object of concern that grows after each marine submersion or intense erosion event. Thus, during the last four decades, the production of knowledge on coastal sediment dynamics has evolved considerably, and is in tune with the needs of society. This editorial aims at synthesizing the current revolution in the scientific research related to coastal and littoral hydrosedimentary dynamics, putting into perspective connections between coasts and other geomorphological entities concerned by sediment transport, showing the links between many fragmented approaches of the topic, and introducing the papers published in the special issue of Water on "Sediment transport in coastal waters".

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Introduction to the Special Issue on Sedimentary Processes Building a Tropical Delta Yesterday, Today, and Tomorrow: The Mekong System

Cited by 11 publications

References 51 publications

A Question of Scale: How Turbulence Around Aerial Roots Shapes the Seabed Morphology in Mangrove Forests of the Mekong Delta

A Question of Scale: How Turbulence Around Aerial Roots Shapes the Seabed Morphology in Mangrove Forests of the Mekong Delta

Drivers of suspended sediment dynamics along the shorelines of the Yellow River Delta detected from satellite data

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

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