Daniel R. Parsons
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View article: Sand-mining-driven reduction in Tonle Sap Lake’s critical flood pulse
Sand-mining-driven reduction in Tonle Sap Lake’s critical flood pulse Open
The Tonle Sap Lake (TSL), one of the world’s most productive lake–wetland ecosystems is sustained by an annual flood pulse that reverses Lower Mekong River flow into the lake during the monsoon and returns freshwater downstream during the …
View article: Modelling the transport and deposition of sediment-microplastics fluxes in a braided river, using Delft3D
Modelling the transport and deposition of sediment-microplastics fluxes in a braided river, using Delft3D Open
Rivers polluted by plastics have become sites where mixtures of microplastics and sediment particles are transported by the river current and deposited in the riverbed. A hydromorphodynamic numerical model was developed using Delft3D (soft…
View article: Rethinking plastic as a habitat modifier and a transport vector for organisms in aquatic environments
Rethinking plastic as a habitat modifier and a transport vector for organisms in aquatic environments Open
View article: Convolution and Graph-based Deep Learning Approaches for Gamma/Hadron Separation in Imaging Atmospheric Cherenkov Telescopes
Convolution and Graph-based Deep Learning Approaches for Gamma/Hadron Separation in Imaging Atmospheric Cherenkov Telescopes Open
The identification of $γ$-rays from the predominant hadronic-background is a key aspect in their ground-based detection using Imaging Atmospheric Cherenkov Telescopes (IACTs). While current methods are limited in their ability to exploit c…
View article: Localised geomorphic response to channel-spanning leaky wooden dams
Localised geomorphic response to channel-spanning leaky wooden dams Open
The introduction of leaky wooden dams (or engineered log jams or LDs) into river corridors in low-order steams in upper catchments has recently become a popular form of natural flood management, particularly in NW Europe. LDs are designed …
View article: Small‐Scale Riverbank Erosion Experiments in Freezing and Thawing Conditions
Small‐Scale Riverbank Erosion Experiments in Freezing and Thawing Conditions Open
Climatic warming is projected to change the duration and intensity of frozen periods in polar regions, impacting hydrology and riverbank erosion. Herein we present a series of 125 laboratory flume experiments conducted in a novel cryolab m…
View article: Increased Hydraulic Roughness in Alluvial Rivers Created by Sand‐Mining Sculpted Bed Features
Increased Hydraulic Roughness in Alluvial Rivers Created by Sand‐Mining Sculpted Bed Features Open
Alluvial bedforms are a first order control on flow resistance, water levels and rate of sediment transport. Their morphologies are a direct reflection of the hydraulic and sedimentological conditions under which they are formed. Studies o…
View article: Behaviours of pyroclastic and analogue materials, in dry and wet environments, for use in experimental modelling of pyroclastic density currents
Behaviours of pyroclastic and analogue materials, in dry and wet environments, for use in experimental modelling of pyroclastic density currents Open
Modelling pyroclastic density currents (PDCs) is a challenging yet essential element of hazard assessment. PDCs are unpredictable and internal processes are often difficult to measure directly. Analogue experiments have been an important t…
View article: The influence of moisture on ash strength: implications for understanding volcanic stratigraphy
The influence of moisture on ash strength: implications for understanding volcanic stratigraphy Open
View article: Global River Topology (GRIT): A Bifurcating River Hydrography
Global River Topology (GRIT): A Bifurcating River Hydrography Open
Existing global river networks underpin a wide range of hydrological applications but do not represent channels with divergent river flows (bifurcations, multi‐threaded channels, canals), as these features defy the convergent flow assumpti…
View article: The role of virtual field trips in Geography higher education: A perspective paper
The role of virtual field trips in Geography higher education: A perspective paper Open
In this perspective paper, we explore the role virtual field trips (VFTs) may play in creating a more resilient, sustainable and equitable field education for Geography students in higher education as we move away from the pandemic but int…
View article: Flood hazard amplification by intra-event sediment transport
Flood hazard amplification by intra-event sediment transport Open
Rivers are dynamic, with channel size and shape adapting to fluctuations in water and sediment supplied from their upstream catchments. These changes directly affect flood conveyance capacity, yet sediment transport processes are often ove…
View article: Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j
Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j Open
Leaky wooden dams (LDs) are woody structures installed in headwater streams that aim to reduce downstream flood risk through increasing in-channel roughness and decreasing river longitudinal connectivity in order to desynchronise flood pea…
View article: Depositional and Erosional Behaviour of Cohesive Sediments in Estuarine Saltmarsh and Mudflat Environments
Depositional and Erosional Behaviour of Cohesive Sediments in Estuarine Saltmarsh and Mudflat Environments Open
Management of aquatic environments relies on the accurate prediction of sediment transport via numerical models. Knowledge of erosional and depositional behaviours in the muddy sediments dominating these environments is therefore required.…
View article: Automated identification of hedgerows and hedgerow gaps using deep learning
Automated identification of hedgerows and hedgerow gaps using deep learning Open
Hedgerows are a key component of the UK landscape that form boundaries, borders and limits of land whilst providing vital landscape‐scale ecological connectivity for a range of organisms. They are diverse habitats in the agricultural lands…
View article: Increased hydraulic roughness in alluvial rivers created by sand-mining sculpted bed features
Increased hydraulic roughness in alluvial rivers created by sand-mining sculpted bed features Open
View article: River Channel Change Can Affect Flood Hazard and Risk as Much as Climate
River Channel Change Can Affect Flood Hazard and Risk as Much as Climate Open
Over a billion people globally are already exposed to the risk of flooding, but by 2050 this number is expected to double due to human-induced climate change, population growth, and encroachment into at-risk areas. Global Flood Models (GFM…
View article: Physical Degradation and Chemical Adsorption: The Critical Influence of Sediment Grain Size on Plastics
Physical Degradation and Chemical Adsorption: The Critical Influence of Sediment Grain Size on Plastics Open
View article: Effect of bed clay on surface water-wave reconstruction from ripples
Effect of bed clay on surface water-wave reconstruction from ripples Open
View article: Localised geomorphic response to channel-spanning leaky wooden dams
Localised geomorphic response to channel-spanning leaky wooden dams Open
The introduction of leaky wooden dams (or engineered log jams) into river corridors in low order steams in upper catchments has recently become a popular form of natural flood management, particularly in NW Europe. Leaky wooden dams are de…
View article: The transport and vertical distribution of microplastics in the Mekong River, SE Asia
The transport and vertical distribution of microplastics in the Mekong River, SE Asia Open
Rivers are primary vectors of plastic debris to oceans, but sources, transport mechanisms, and fate of fluvial microplastics (-3 (0.073 mg l-1). Concentrations increased downstream from rural Kampi, Cambodia (344 km from r…
View article: Seabed Seismographs Reveal Duration and Structure of Longest Runout Sediment Flows on Earth
Seabed Seismographs Reveal Duration and Structure of Longest Runout Sediment Flows on Earth Open
Turbidity currents carve the deepest canyons on Earth, deposit its largest sediment accumulations, and break seabed telecommunication cables. Powerful canyon‐flushing turbidity currents break sensors placed in their path, making them notor…
View article: Significant Reduction in Tonle Sap Lake's Critical Flood Pulse Caused by Human-Induced Riverbed Lowering
Significant Reduction in Tonle Sap Lake's Critical Flood Pulse Caused by Human-Induced Riverbed Lowering Open
The Tonle Sap Lake (TSL), a vital component of the Mekong River, is renowned as one of the world’s most productive lake-wetland systems. The lake’s high productivity is intimately related to an annual flood pulse that is driven by Mekong R…
View article: Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j
Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j Open
Leaky wooden dams are woody structures installed in headwater streams that aim to reduce downstream flood risk through increasing in-channel roughness and decreasing river longitudinal connectivity in order to desynchronise flood peaks wit…
View article: Monopile-induced turbulence and sediment redistribution form visible wakes in offshore wind farms
Monopile-induced turbulence and sediment redistribution form visible wakes in offshore wind farms Open
Offshore wind farms are becoming an increasingly common feature in the marine environment as a renewable energy source. There is a growing body of evidence on the effects of wind farms on the seabed and its organisms. However, an important…
View article: Time-lapse surveys reveal patterns and processes of erosion by exceptionally powerful turbidity currents that flush submarine canyons: A case study of the Congo Canyon
Time-lapse surveys reveal patterns and processes of erosion by exceptionally powerful turbidity currents that flush submarine canyons: A case study of the Congo Canyon Open
View article: Global-scale evaluation of precipitation datasets for hydrological modelling
Global-scale evaluation of precipitation datasets for hydrological modelling Open
Precipitation is the most important driver of the hydrological cycle, but it is challenging to estimate it over large scales from satellites and models. Here, we assessed the performance of six global and quasi-global high-resolution preci…
View article: Working with wood in rivers in the Western United States
Working with wood in rivers in the Western United States Open
Recognition of the important physical and ecological roles played by large wood in channels and on floodplains has grown substantially during recent decades. Although large wood continues to be routinely removed from many river corridors w…
View article: Effect of Bed Clay on Surface-Water Wave Reconstruction from Ripples
Effect of Bed Clay on Surface-Water Wave Reconstruction from Ripples Open
Wave ripples can provide valuable information on their formative hydrodynamic conditions in past subaqueous environments by inverting dimension predictors. However, these inversions do not usually take the mixed non-cohesive/cohesive natur…
View article: Effect of Bed Clay on Surface-Water Wave Reconstruction from Ripples
Effect of Bed Clay on Surface-Water Wave Reconstruction from Ripples Open
Wave ripples can provide valuable information on their formative hydrodynamic conditions in past subaqueous environments by inverting dimension predictors. However, these inversions do not usually take the mixed non-cohesive and cohesive n…