GLOBAL SYSTEMS INSTITUTE

Publications

Atmospheric impacts of Arctic sea-ice loss, 1979–2009: separating forced change from atmospheric internal variability

Publication ID: pub.1047446004

Publication date: 15/06/2013

Keywords: Arctic Sea Ice; Atmospheric Modelling; Detection and Attribution; Ensembles; Global; Internal Variability; Signal-to-noise Ratio

The ongoing loss of Arctic sea-ice cover has implications for the wider climate system. The detection and importance of the atmospheric impacts of sea-ice loss depends, in part, on the relative magnitudes of the sea-ice forced change compared to natural atmospheric internal variability (AIV). This study analyses large ensembles of two independent atmospheric general circulation […]

An effective constitutive model for lime treated soils

Publication ID: pub.1024893142

Keywords: Constitutive Modelling; Degradation; Lime Treated Soils; Structured Soils

The effect of lime on the yield stress, and more generally the presence of structure in the soil, is usually not accounted for in the design of geotechnical structures. As a result the potential of lime treatment or of a structured soil has not been fully exploited. This paper presents a new formulation to account […]

Facets of trust in simulation studies

Publication ID: pub.1128978047

Keywords: Decision Processes; Facilitated Modelling; OR Practice; Participatory Modelling; Trust

The purpose of a modelling and simulation (M&S) study for real-world operations management applications is to support decision-making and inform potential action, therefore investigating the aspects of the modelling process which influence trust is important. Previous work has considered the question of trust through the lens of model validation. However, whilst a simulation model may […]

Guidelines for mix proportioning of fly ash/GGBS based alkali activated concretes

Publication ID: pub.1085131260

Keywords: Alkali Activated Binders/Concretes; Fly Ash; Ground Granulated Blast Furnace Slag; Selection of Mixed Proportions

The effects of paste volume, water content and precursor blend on consistency, setting time and compressive strength of alkali activated concrete (AAC) produced with fly ash (FA) and ground granulated blast furnace slag (GGBS) have been investigated with the aim of developing a suitable mix design procedure. Paste volumes in the range 30–33% were found […]

Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations

Publication ID: pub.1040378785

Keywords: Astrochronology; Carbon-cycle; Cyclostratigraphy; Early Jurassic; Global; Pliensbachian; Strontium Isotopes

The Early Jurassic was marked by multiple periods of major global climatic and palaeoceanographic change, biotic turnover and perturbed global geochemical cycles, commonly linked to large igneous province volcanism. This epoch was also characterised by the initial break-up of the super-continent Pangaea and the opening and formation of shallow-marine basins and ocean gateways, the timing […]

Examining the Dynamics of Energy Demand through a Biographical Lens

Publication ID: pub.1032605295

Keywords: Biography; Cardiff; Consumption; Ely and Caerau; Life-course; London; Low Carbon Transitions; Peterston-Super-Ely; Royal Free Hospital; Social Change; Social Reproduction; Tir y Gafel; UK; Whitland

It is widely recognized that a major challenge in low carbon transitioning is the reduction of energy consumption. This implies a signifi cant level of transformation in our ways of living, meaning the challenge is one that runs deep into the fabric of our personal lives. In this article we combine biographical research approaches with […]