Publications

Numerical instabilities of vector‐invariant momentum equations on rectangular C‐grids

Publication ID: pub.1018929159

Publication date: 21/12/2016

Keywords: Energy and Enstrophy Conservation; Hollingsworth Instabilities; Separation of Variables; Shallow-water Equations; Vector-invariant Momentum Equations

The linear stability of two well-known energy- and enstrophy-conserving schemes for the vector-invariant hydrostatic primitive equations is examined. The problem is analyzed for a stably stratified Boussinesq fluid on an f-plane with a constant velocity field, in height and isopycnal coordinates, by separation of variables into vertical normal modes and a linearized form of the […]

Baseline study in environmental risk assessment: Escalating need for computer models to be whole-system approach

Publication ID: pub.1058370360

Publication date: 12/12/2016

Keywords: Baseline Study; Computer Models; Landfill Leachate; Preliminary Investigation; Risk Analysis; Risk Assessment; Software Packages; UK; Waste Disposal Sites

Despite landfills having the potential to pollute the environment both during their operation and long after they have ceased to receive waste, they remain a dominant waste management option, particularly in the UK. In order to combat the environmental pollution caused by landfills, risk analysis is increasingly being employed through computer models. However, for a […]

Extreme flood‐driven fluvial bank erosion and sediment loads: direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro‐acoustic techniques

Publication ID: pub.1047846383

Publication date: 07/12/2016

Keywords: Acoustic Doppler Current Profiling (aDcp); Bank Erosion; Cambodia; Cyclone-driven Flood Events; Flow and Suspended Sediment; Hydro-acoustic techniques; Mekong River; Mobile Laser Scanning (MLS); Multibeam Echo Sounding (MBES); Remote Sensing Methods; Sediment Loads

This methods paper details the first attempt at monitoring bank erosion, flow and suspended sediment at a site during flooding on the Mekong River induced by the passage of tropical cyclones. We deployed integrated mobile laser scanning (MLS) and multibeam echo sounding (MBES), alongside acoustic Doppler current profiling (aDcp), to directly measure changes in river […]

Annually resolved North Atlantic marine climate over the last millennium

Publication ID: pub.1051959405

Publication date: 06/12/2016

Keywords: Arctica islandica (δ18O-shell); Climate Transitions; Medieval Climate Anomaly-Little Ice Age (MCA-LIA); North Atlantic Ocean; North Icelandic Shelf; Ocean Circulation Dynamics; Solar and Volcanic Forcing

Owing to the lack of absolutely dated oceanographic information before the modern instrumental period, there is currently significant debate as to the role played by North Atlantic Ocean dynamics in previous climate transitions (for example, Medieval Climate Anomaly-Little Ice Age, MCA-LIA). Here we present analyses of a millennial-length, annually resolved and absolutely dated marine δ18O […]

Large differences in regional precipitation change between a first and second 2 K of global warming

Publication ID: pub.1007929911

Publication date: 06/12/2016

Keywords: Adaptation and Mitigation Planning; Climate Models; Emissions and Mitigation Scenarios; Global; Global Warming; Physical Mechanisms; Regional Climate Change; Regional Precipitation Change; Routes

For adaptation and mitigation planning, stakeholders need reliable information about regional precipitation changes under different emissions scenarios and for different time periods. A significant amount of current planning effort assumes that each K of global warming produces roughly the same regional climate change. Here using 25 climate models, we compare precipitation responses with three 2 K […]

Modelling coffee leaf rust risk in Colombia with climate reanalysis data

Publication ID: pub.1009686229

Publication date: 05/12/2016

Keywords: Basidiomycota; Climate; Climate Change; Coffea; Colombia; Models, Theoretical; Plant Diseases; Plant Leaves

Many fungal plant diseases are strongly controlled by weather, and global climate change is thus likely to have affected fungal pathogen distributions and impacts. Modelling the response of plant diseases to climate change is hampered by the difficulty of estimating pathogen-relevant microclimatic variables from standard meteorological data. The availability of increasingly sophisticated high-resolution climate reanalyses […]