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Event to discuss research findings on Dundalk Bay and mud sediments

Event to discuss research findings on Dundalk Bay and mud sediments
dundalkdemocrat.ie - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dundalkdemocrat.ie Daily Mail and Mail on Sunday newspapers.

Dundalk Bay , Ireland General , Dundalk Library On , Dundalk Library , Taking Stock , Marine Sediments , Potential Climate ,

"Numerical investigation of solute migration and release from sediments" by Xiaoli Liu, Shouming Liu et al.

Sediments with poor drainage conditions are prone to build-up of excess pore water pressure when exposed to dynamic wave loading. This results in accumulated seepage flow that may have a significant impact on migration of solutes in marine sediments. In this study, the complex interplay between solute transport and wave-induced seepage process is investigated through a pioneering approach that combines and synchronously solves the two-dimensional advection-dispersion equation governing nonreactive solute transport with the governing equations for wave-induced oscillatory and residual pore pressures. The simulated results have demonstrated that the accumulated seepage flow significantly contributes to the advective and dispersive fluxes of solute, where the advection leads to movement of the solute layer and the hydrodynamic dispersion primarily enlarges the thickness of solute layer. The distribution of residual pore water pressure along depth exhibits two patterns that are primarily i ....

Accumulated Pore Water Pressure , Marine Sediments , Ocean Waves , Olute Transport ,

MyJournals.org - Science - '[ASAP] Key Themes, Trends, and Drivers of Mobile Ambient Air Quality Monitoring: A Systematic Review and Meta-Analysis' (Environmental Science & Technology)

MyJournals.org - Science - [ASAP] Key Themes, Trends, and Drivers of Mobile Ambient Air Quality Monitoring: A Systematic Review and Meta-Analysis (Environmental Science & Technology) ....

China Environmental Science Technology , Analysis Environmental Science Technology , Key Themes , Mobile Ambient Air Quality Monitoring , Systematic Review , Environmental Science , Biological Effect Assessment , Contaminant Exposure , Marine Sediments , Tibetan Wild Ass , Southern Tibetan Plateau , Meta Analysis ,

"Numerical investigation of solute transport into deformable marine sed" by Xiaoli Liu, Hongyi Zhao et al.

Most existing studies do not consider the effect that the deformability of submarine sediments may have on solute transport under the action of ocean waves. In this study a two-dimensional numerical model based on Biot's poro-elastic consolidation theory and an advection–dispersion equation is established to investigate the transport of non-reactive solute into a deformable porous seabed under the influence of ocean waves. The numerical model is then validated against experimental and analytical results in order to demonstrate its accuracy and robustness. The simulation results indicate that ignoring the deformability of seabed soil and associated seepage force due to ocean waves may lead to a significant underestimation of the rate of solute transport in shallow layers of marine sediment, particularly fine sand or silt. The effects of parameters such as the shear modulus, non-dimensional mechanical dispersion coefficient (related to particle size and permeability), dimensionles ....

Marine Sediments , Numerical Simulation , Rogressive Waves , Oil Deformation , Olute Transport ,

Was Earth already heating up, or did global warming reverse a long-term cooling trend?

Evidence in Earth’s natural archives, from tree rings to seafloor sediments, points to one trend. Some climate models suggest another. Here’s why are important. ....

Industrial Revolution , Ancient History , Climate Change , Climate Models , Climate Science , Global Climate Models , Global Warming , Greenhouse Gas Emissions Ghg , Industrial Revolution , Marine Sediments , Tree Rings ,