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  • Journal article
    Banks JR, Brindley HE, 2013,

    Evaluation of MSG-SEVIRI mineral dust retrieval products over North Africa and the Middle East

    , REMOTE SENSING OF ENVIRONMENT, Vol: 128, Pages: 58-73, ISSN: 0034-4257
  • Journal article
    Vaissier V, Barnes P, Kirkpatrick J, Nelson Jet al., 2013,

    Influence of polar medium on the reorganization energy of charge transfer between dyes in a dye sensitized film

    , PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 15, Pages: 4804-4814, ISSN: 1463-9076
  • Journal article
    Chignell S, Gross RJK, 2013,

    Not locked-in? The overlooked impact of new gas-fired generation investment on long-term decarbonisation in the UK

    , ENERGY POLICY, Vol: 52, Pages: 699-705, ISSN: 0301-4215
  • Journal article
    Hughes N, Strachan N, Gross R, 2013,

    The structure of uncertainty in future low carbon pathways

    , Energy Policy, Vol: 52, Pages: 45-54, ISSN: 0301-4215

    Low carbon scenario and transition pathway analysis involves the consideration of uncertainties around future technological and social changes. This paper argues that uncertainty can be better understood, and the strategic and policy effectiveness of scenarios or pathways thereby improved, through a systematic categorisation of the different kinds of certain and uncertain elements of which the future is comprised. To achieve this, this paper makes two novel methodological contributions. First it proposes a system conceptualisation which is based on a detailed description of the dynamics of the actors and institutions relevant to the system under study, iteratively linked to a detailed representation of the technological system. Second, it argues that as a result of developing this actor-based low carbon scenarios approach it is possible to characterise future elements of the system as either pre-determined, actor contingent or non-actor contingent. An outline scenario approach is presented, based on these two contributions. It emerges that the different categories of future element are associated with different types of uncertainty and each prompt different strategic policy responses. This categorisation of future elements therefore clarifies the relationship of scenario content to specific types of policy response, and thus improves the policy tractability of resulting scenarios.

  • Software
    AMCG, 2013,

    Fluidity/The Imperial College Ocean Model

  • Journal article
    Jacobs CT, Collins GS, Piggott MD, Kramer SC, Wilson CRGet al., 2013,

    Multiphase flow modelling of volcanic ash particle settling in water using adaptive unstructured meshes

    , Geophysical Journal International, Vol: 192, Pages: 647-665

    Small-scale experiments of volcanic ash particle settling in water have demonstrated that ash particles can either settle slowly and individually, or rapidly and collectively as a gravitationally unstable ash-laden plume. This has important implications for the emplacement of tephra deposits on the seabed. Numerical modelling has the potential to extend the results of laboratory experiments to larger scales and explore the conditions under which plumes may form and persist, but many existing models are computationally restricted by the fixed mesh approaches that they employ. In contrast, this paper presents a new multiphase flow model that uses an adaptive unstructured mesh approach. As a simulation progresses, the mesh is optimized to focus numerical resolution in areas important to the dynamics and decrease it where it is not needed, thereby potentially reducing computational requirements. Model verification is performed using the method of manufactured solutions, which shows the correct solution convergence rates. Model validation and application considers 2-D simulations of plume formation in a water tank which replicate published laboratory experiments. The numerically predicted settling velocities for both individual particles and plumes, as well as instability behaviour, agree well with experimental data and observations. Plume settling is clearly hindered by the presence of a salinity gradient, and its influence must therefore be taken into account when considering particles in bodies of saline water. Furthermore, individual particles settle in the laminar flow regime while plume settling is shown (by plume Reynolds numbers greater than unity) to be in the turbulent flow regime, which has a significant impact on entrainment and settling rates. Mesh adaptivity maintains solution accuracy while providing a substantial reduction in computational requirements when compared to the same simulation performed using a fixed mesh, highlighting the benefits of an adapt

  • Conference paper
    Bell RE, McNeill LC, Nixon C, Henstock T, Bull J, Christodoulou D, Papatheodorou G, Taylor B, Ferentinos G, Sakellariou D, Lykousis V, Sachpazi M, Ford M, Goodliffe A, Leeder M, Gawthorpe G, Collier R, Clements Bet al., 2013,

    Basin evolution and the distribution of strain within the Gulf of Corinthrift

    , EGU General Assembly
  • Journal article
    Sule MN, Jiang J, Templeton MR, Huth E, Brant J, Bond Tet al., 2013,

    Salt rejection and water flux through a tubular pervaporative polymer membrane designed for irrigation applications

    , Environmental Technology, Vol: 34, Pages: 1329-1339
  • Conference paper
    Bell RE, Jackson CA-L, Whipp PS, Clements Bet al., 2013,

    Quantifying the timing and magnitude of fault reactivation in the northern North Sea

    , Tectonic Studies Group Annual Meeting
  • Conference paper
    Reeve MT, Bell RE, Jackson CA-L, 2013,

    The influence of Caledonian structures on Late Jurassic faulting offshore western Norway: new insights from 3D seismic reflection data, STUDENT ORAL PRESENTATION PRIZE WINNER

    , Tectonic Studies Group Annual Meeting
  • Journal article
    Jackson CA-L, Chua ST, Bell RE, Magee Cet al., 2013,

    Structural style and early stage growth of inversion structures: 3D seismic insights from the Egersund Basin, offshore Norway

    , Journal of Structural Geology, Vol: 46, Pages: 167-185
  • Journal article
    Armitage JJ, Dunkley Jones T, Duller RA, Whittaker AC, Allen PAet al., 2013,

    Temporal buffering of climate-driven sediment flux cycles by transient catchment response

    , EARTH AND PLANETARY SCIENCE LETTERS, Vol: 369-370, Pages: 200-210
  • Book chapter
    Gennaioli C, Martin R, Muuls M, 2013,

    Using micro data to examine causal effects of climate policy

    , Handbook on Energy and Climate Change
  • Book chapter
    Waterman RJ, Klooster MR, Hentrich H, Bidartondo MIet al., 2013,

    Species interactions of mycoheterotrophic plants: specialization and its potential consequences.

    , Mycoheterotrophy, Editors: Merckx, New York, Publisher: Springer, Pages: 267-296, ISBN: 978-1-4614-5209-6
  • Journal article
    Hassan MHA, Johnson HD, Allison PA, Abdullah WHet al., 2013,

    Sedimentology and stratigraphic development of the upper Nyalu Formation (Early Miocence), Sarawak, Malaysia: A mixed wave and tide influenced coastal system

    , Journal of Asian Earth Sciences
  • Journal article
    Hayes-Labruto L, Schillebeeckx SJD, Workman M, Shah Net al., 2013,

    Contrasting Perspectives on China's Rare Earth Policies: Reframing the Debate through a Stakeholder Lens

    , Energy Policy

    This article critically compares China’s rare earth policy with perspectives upheld in the rest of the world (ROW). We introduce rare earth elements and their importance for energy and present how China and the ROW are framing the policy debate. We find strongly dissonant views with regards to motives for foreign direct investment, China’s two-tiered pricing structure and its questionable innovation potential. Using the metaphor of “China Inc.”, we compare the Chinese government to a socially responsible corporation that aims to balance the needs of its internal stakeholders with the demands from a resource-dependent world. We find that China’s internal stakeholders have more power and legitimacy in the REE debate than the ROW and reconceptualise various possible mitigation strategies that could change current international policy and market dynamics. As such, we aim to reframe the perspectives that seem to govern the West and argue in favour of policy formation that explicitly acknowledges China’s triple bottom line ambitions and encourages the ROW to engage with China in a more nuanced manner.

  • Journal article
    Allen PA, Armitage JJ, Carter A, Duller RA, Michael NA, Sinclair HD, Whitchurch ALet al., 2013,

    The Qs problem: Sediment volumetric balance of proximal foreland basin systems

    , SEDIMENTOLOGY, Vol: 60, Pages: 102-130
  • Book chapter
    Mumford JD, Carrasco LR, 2013,

    Economics of Transgenic Insects for Field Release

    , Transgenic Insects, Editors: Benedict, United Kingdom, Publisher: CABI
  • Conference paper
    Cicciotti M, Geist S, Schild A, Martinez-Botas RF, Romagnoli A, Thornhill NFet al., 2013,

    Systematic one zone meanline modelling of centrifugal compressors for industrial online applications

    , ASME Turbo Expo 2013, San Antonio, Texas, June 3-7 2013, paper GT2013/95821

    For developing model-based online applications such as condition monitoring and condition-based maintenance or real-time optimization, highly representative and yet simple physical models of centrifugal compressors are necessary. Previous investigations have shown that in this context meanline models represent a valid alternative to the commonly used empirical based modelling methodologies such as polynomial regression models or artificial neural networks. This paper provides a methodology for tailoring meanline models to multistage centrifugal compressors by appropriate selection and adaptation of loss correlations. Guidelines for the selection of the boundary conditions are also provided. The potential of the methodology is demonstrated in the Proof-of-concept section using two sets of data obtained from an air multistage centrifugal compressor operated in BASF SE, Ludwigshafen, Germany. The first set of data was used to calibrate the model whereas the second one was used for validation. The model results show that the predictions of stagnation temperature and pressure at the outlet of the stage deviate from the measurements respectively 0.15-3% and of 0.66-1.1% respectively. The results are discussed in the current paper. Copyright © 2013 by ASME.

  • Journal article
    Alhajaj A, Mac Dowell N, Shah N, 2013,

    Multiscale Design and Analysis of CO₂ Capture, Transport and Storage Networks

    , Energy Procedia, Vol: 37, Pages: 2552-2561, ISSN: 1876-6102
  • Journal article
    Shevchenko I, Kaltenbacher M, Wohlmuth B, 2013,

    Absorbing boundary conditions for a wave equation with a temperature dependent speed of sound

    , J. Comput. Acoust., Vol: 21, Pages: 1-20
  • Journal article
    Vaik I, Paal G, Kaltenbacher M, Triebenbacher S, Becker S, Shevchenko Iet al., 2013,

    Aeroacoustics of the edge tone: 2D-3D coupling between CFD and CAA

    , Acta. Acust. United Ac., Vol: 99, Pages: 245-259
  • Conference paper
    Bell RE, Morgan JV, Warner M, 2013,

    Recovering physical property information from subduction plate boundaries using 3D full-waveform seismic inversion

    , AGU Fall Meeting
  • Conference paper
    Wilson DJ, McNeill LC, Henstock T, Westbrook GK, Bangs NL, Tobin HJ, Moore GF, Pickering KT, Saffer DM, Bell RE, Sutherland R, Henrys SAet al., 2013,

    Along-strike and down-dip variations in décollement physical properties relative to input parameters

    , AGU Fall Meeting
  • Conference paper
    Nixon CW, McNeill LC, Henstock T, Bull JM, Bell RE, Christodoulou D, Papatheodorou G, Taylor B, Ferentinos G, Sakellariou D, Lykousis V, Sachpazi M, Ford M, Goodliffe AM, Leeder M, Gawthorpe RL, Collier RE, Clements Bet al., 2013,

    Basin evolution, organization of faulting and the distribution of displacement within the Gulf of Corinth rift

    , AGU Fall Meeting
  • Journal article
    Rognes ME, Ham DA, Cotter CJ, McRae ATTet al., 2013,

    Automating the solution of PDEs on the sphere and other manifolds in FEniCS 1.2

    , Geoscientific Model Development, Vol: 6, Pages: 2099-2119
  • Conference paper
    Vire A, Xiang J, Piggott M, Spinneken J, Pain Cet al., 2013,

    Numerical Modelling of Fluid-structure Interactions for Floating Wind Turbine Foundations

    , Twenty-third International Offshore and Polar Engineering Conference, Pages: 377-382

    The aim of this study is to model the interactions between fluids and solids using fully nonlinear models. Non-linearity is important in the context of floating wind turbines, for example, to model breaking waves impacting on the structure and the effect of the solid’s elasticity. In this work, the fluid- and solid-dynamics equations are solved using separate finite-element models, which are coupled at every time step. This enables the mutual interactions between fluids and moving solids to be modelled. Importantly, the coupling algorithm ensures that the action-reaction principle is satisfied at a discrete level, independently of the order of representation of the discrete fields in each model. To the authors’ knowledge, the present algorithm is novel in that it can simultaneously handle (i) non-matching fluid and solid meshes, (ii) different polynomial orders of the basis functions on each mesh, and (iii) different fluid and solid time steps. Results are shown for: (i) a bottom-mounted pile subjected to small-amplitude waves in a numerical wave tank, and (ii) a truncated pile floating at an interface between air and water.

  • Book chapter
    Slade R, Bauen A, 2013,

    Biomass use on a global scale

    , Encyclopedia of Sustainability Science and Technology, Publisher: Springer
  • Book chapter
    St John FAV, Keane AM, Milner-Gulland EJ, 2013,

    Effective conservation depends on understanding human behaviour

    , Key Topics in Conservation Biology 2, Editors: Macdonald, Willis, Publisher: John Wiley & Sons, Ltd, ISBN: 978-0-470-65875-8
  • Conference paper
    Bell RE, Jackson CA-L, Elliott G, Gawthorpe RL, Michelsen L, Sharp IRet al., 2013,

    Reconstructing rift geometry to gain insights into major unconformity development associated with Late Jurassic rifting in the Halten Terrace, offshore Norway

    , 30th IAS Meeting of Sedimentology

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