Publications

The Ups and Downs of Volcanic Unrest: Insights from Integrated Geodesy and Numerical Modelling

Publication ID: pub.1090673725

Publication date: 15/07/2017

Keywords: Bolivia; Cotopaxi; Crustal Mechanics; Ecuador; Geodesy; Gravity; Modelling; Montserrat; Soufrière Hills; Teide; Tenerife; Uturuncu; Volcano Deformation

Volcanic eruptions are often preceded by small changes in the shape of the volcano. Such volcanic deformation may be measured using precise surveying techniques and analysed to better understand volcanic processes. Complicating the matter is the fact that deformation events (e.g., inflation or deflation) may result from magmatic, non-magmatic or mixed/hybrid sources. Using spatial and […]

Revising the hygroscopicity of inorganic sea salt particles

Publication ID: pub.1090335233

Publication date: 03/07/2017

Keywords: Aerosol Optical Depth; Aerosol-radiation Interaction; General Circulation Model; Global; Hygroscopic; Hygroscopic Growth; Inorganic Sea Salt Particles; Numerical Models; Particle Size; Sea Spray

Sea spray is one of the largest natural aerosol sources and plays an important role in the Earth’s radiative budget. These particles are inherently hygroscopic, that is, they take-up moisture from the air, which affects the extent to which they interact with solar radiation. We demonstrate that the hygroscopic growth of inorganic sea salt is […]

Limited contribution of permafrost carbon to methane release from thawing peatlands

Publication ID: pub.1086241784

Publication date: 26/06/2017

Keywords: Anaerobic Decomposition; Canada; Climate Forcing; Methane Fluxes; Methane Release; Permafrost Carbon; Surface Subsidence (Thermokarst); Teslin; Thawing Peatlands; Water-logging; Wetland; Yellowknife

Methane fluxes from thawing peatlands in northern Canada were derived predominantly from anaerobic decomposition of recent vegetation rather than from previously frozen material — as is typically assumed.

The new anarchy: Globalisation and fragmentation in world politics

Publication ID: pub.1090123898

Publication date: 20/06/2017

Keywords: Anarchy; Critical International Political Economy; Global; Globalisation; Neopluralism; Network Theory; The State

Modern International Relations theory has consistently underestimated the depth of the problem of anarchy in world politics. Contemporary theories of globalisation bring this into bold relief. From this perspective, the complexity of transboundary networks and hierarchies, economic sectors, ethnic and religious ties, civil and cross-border wars, and internally disaggregated and transnationally connected state actors, leads […]

Experimental Study of the Mechanical Behavior of Frozen Soils – A Case Study of Tabriz Subway

Publication ID: pub.1090230623

Publication date: 19/06/2017

Keywords: Artificial Ground Freezing; Frozen Soil; Iran; Mechanical Behaviour; Tabriz; Tabriz Subway

The mechanical properties of frozen ground are key parameters in design and implementation of artificial ground freezing (AGF) in underground projects. Soil samples were obtained from the urban underground railway project site in Tabriz, Iran. The specimens were classified as SP and CL according to the USCS. The specimens were remolded in accordance with the […]

Mercury evidence for pulsed volcanism during the end-Triassic mass extinction

Publication ID: pub.1086130805

Publication date: 19/06/2017

Keywords: Extinction, Biological; Geologic Sediments; Global; Mercury; Paleontology; Volcanic Eruptions

The Central Atlantic Magmatic Province (CAMP) has long been proposed as having a causal relationship with the end-Triassic extinction event (∼201.5 Ma). In North America and northern Africa, CAMP is preserved as multiple basaltic units interbedded with uppermost Triassic to lowermost Jurassic sediments. However, it has been unclear whether this apparent pulsing was a local […]