Chris Unsworth
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View article: Impact of the climate change on hydrodynamic seabed stressors
Impact of the climate change on hydrodynamic seabed stressors Open
How will climate change affect the composition of the seabed? Ongoing climate change impacts nearly every area of our oceans. While coastal impacts of flooding and erosion are well studied, less attention has been paid to the impact of inc…
View article: Enhanced bed shear stress and mixing in the tidal wake of an offshore wind turbine monopile
Enhanced bed shear stress and mixing in the tidal wake of an offshore wind turbine monopile Open
Tidal flow past offshore wind farm (OWF) infrastructure generates a turbulent vortex wake. The wake is hypothesised to enhance seabed stress and water column turbulence mixing, thereby affecting seabed mobility, water column stratification…
View article: Enhanced bed shear stress and mixing in the near wake of an offshore wind turbine monopile
Enhanced bed shear stress and mixing in the near wake of an offshore wind turbine monopile Open
Tidal flow past offshore wind farm (OWF) infrastructure generates a turbulent vortex wake that is hypothesised to enhance seabed stress and water column turbulence mixing, and thereby affect seabed mobility, water column stratification, th…
View article: Towards the Verification of Pervasive Systems
Towards the Verification of Pervasive Systems Open
Pervasive systems, that is roughly speaking systems that can interact with their environment, are increasingly common. In such systems, there are many dimensions to assess: security and reliability, safety and liveness, real-time response,…
View article: Tightly coupled verification of pervasive systems
Tightly coupled verification of pervasive systems Open
We consider the problem of verifying context-aware, pervasive, interactive systems when the interaction involves both system configuration and system use. Verification of configurable systems is more tightly coupled to design when the veri…
View article: Biological–physical interactions are fundamental to understanding and managing coastal dynamics
Biological–physical interactions are fundamental to understanding and managing coastal dynamics Open
There is an urgent need to address coastal dynamics as a fundamental interaction between physical and biological processes, particularly when trying to predict future biological–physical linkages under anticipated changes in environmental …
View article: Field measurements of cable self-burial in a sandy marine environment
Field measurements of cable self-burial in a sandy marine environment Open
The world's shallow continental shelves are currently experiencing a rapid pace of development from the growth of offshore renewable energy. The emplacement of infrastructure on the seabed can change the morphology of the bed, the nature o…
View article: Site characterization of META – the Marine Energy Test Area in Wales, UK
Site characterization of META – the Marine Energy Test Area in Wales, UK Open
With lack of convergence on any single wave or tidal technology, test centres have a unique role in the marine renewable energy industry. Test centres facilitate real testing at sea for devices and components at various TRLs (Technology Re…
View article: Identifying conditions that sculpted bedforms - Human insights to build an effective artificial intelligence ‘AI’
Identifying conditions that sculpted bedforms - Human insights to build an effective artificial intelligence ‘AI’ Open
<p>Insights from a geoscience communication activity, verified using preliminary investigations with an artificial neural network, illustrate that observation of humans&#8217; abilities can help design an effective machine learni…
View article: Flow changes in the wake of a large sediment wave: helping to understand geological and ecological impacts of seabed infrastructure.
Flow changes in the wake of a large sediment wave: helping to understand geological and ecological impacts of seabed infrastructure. Open
<p>During this pivotal time of energy transition, it is of crucial importance to unlock the potential of the seabed for offshore energy conversion and electrical power transport.&#160;With the construction of ever larger offshore…
View article: Using a natural laboratory to quantify sediment mobility in the turbulent wake of instrument frames and offshore infrastructure.&#160;
Using a natural laboratory to quantify sediment mobility in the turbulent wake of instrument frames and offshore infrastructure.  Open
<p>Predicting sediment transport near the threshold of mobility is a particular challenge in coastal environments, due in part to turbulence in the wake of bedforms and infrastructure but also due to variable grain size distributions…
View article: GC Insights: Identifying conditions that sculpted bedforms – human insights to building an effective AI (artificial intelligence)
GC Insights: Identifying conditions that sculpted bedforms – human insights to building an effective AI (artificial intelligence) Open
Insights from a geoscience communication activity, verified using preliminary investigations with an artificial neural network, illustrate that observation of humans' abilities can help design an effective artificial intelligence or “AI”. …
View article: GC Insights: Identifying conditions that sculpted bedforms – Human insights to build an effective AI
GC Insights: Identifying conditions that sculpted bedforms – Human insights to build an effective AI Open
42 survey participants demonstrate that it is visually possible to recognise the type of flow that created bedforms (e.g. sand dunes, riverbed ripples) from short distance-depth profiles, but this is much harder for individual forms. An in…
View article: A Collection of Constraint Programming Models for the Three-Dimensional Stable Matching Problem with Cyclic Preferences
A Collection of Constraint Programming Models for the Three-Dimensional Stable Matching Problem with Cyclic Preferences Open
We introduce five constraint models for the 3-dimensional stable matching problem with cyclic preferences and study their relative performances under diverse configurations. While several constraint models have been proposed for variants o…
View article: Influence of Dunes on Channel‐Scale Flow and Sediment Transport in a Sand Bed Braided River
Influence of Dunes on Channel‐Scale Flow and Sediment Transport in a Sand Bed Braided River Open
Current understanding of the role that dunes play in controlling bar and channel‐scale processes and river morphodynamics is incomplete. We present results from a combined numerical modeling and field monitoring study that isolates the imp…
View article: Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery
Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery Open
Images from specially‐commissioned aeroplane sorties (manned aerial vehicle, MAV), repeat unmanned aerial vehicle (UAV) surveys, and Planet CubeSat satellites are used to quantify dune and bar dynamics in the sandy braided South Saskatchew…
View article: The Impact of Nonequilibrium Flow on the Structure of Turbulence Over River Dunes
The Impact of Nonequilibrium Flow on the Structure of Turbulence Over River Dunes Open
Most past experimental investigations of flow over river dunes have focused on conditions that match semiempirical flow‐depth scaling laws, yet such equilibrium conditions are of limited value because they rarely occur in natural channels.…
View article: A review of literature on parallel constraint solving
A review of literature on parallel constraint solving Open
As multi-core computing is now standard, it seems irresponsible for constraints researchers to ignore the implications of it. Researchers need to address a number of issues to exploit parallelism, such as: investigating which constraint al…