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Journal articleWells MR, Allison PA, Piggott MD, et al., 2010,
Tidal modeling of an ancient tide-dominated seaway, part 2: the Aptian Lower Greensand seaway of northwest Europe
, Journal of Sedimentary Research, Vol: 80, Pages: 411-439, ISSN: 1527-1404 -
Journal articleWells MR, Allison PA, Piggott MD, et al., 2010,
Tidal modeling of an ancient tide-dominated seaway, part 1: model validation and application to global early Cretaceous (Aptian) tides
, Journal of Sedimentary Research, Vol: 80, Pages: 393-410, ISSN: 1527-1404 -
Journal articleMitchell AJ, Ulicny D, Hampson GJ, et al., 2010,
Modelling tidal current-induced bed shear stress and palaeocirculation in an epicontinental seaway: the Bohemian Cretaceous Basin, Central Europe
, Sedimentology, Vol: 57, Pages: 359-388, ISSN: 0037-0746 -
Journal articleMaidment SCR, Porro LB, 2010,
Homology of the palpebral and origin of the supraorbital ossifications in ornithischian dinosaurs
, Lethaia, Vol: 43, Pages: 95-111 -
Journal articleMitchell AJ, Allison PA, Piggott MD, et al., 2010,
Numerical modelling of tsunami propagation with implications for sedimentation in ancient epicontinental seas: the Lower Jurassic Laurasian Seaway
, Journal of Sedimentary Geology, Vol: 228, Pages: 81-97, ISSN: 0037-0738 -
Journal articleMaidment SCR, 2010,
Stegosauria: A review of the body fossil record and phylogenetic relationships
, Swiss Journal of Geosciences, Vol: 103, Pages: 199-210 -
Journal articleGarwood R, Dunlop JA, Sutton MD, 2009,
High-fidelity X-ray microtomography reconstruction of siderite-hosted Carboniferous arachnids
, BIOLOGY LETTERS, Vol: 5, Pages: 841-844, ISSN: 1744-9561- Author Web Link
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- Citations: 39
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Journal articleRahman IA, Sutton MD, Bell MA, 2009,
Evaluating phylogenetic hypotheses of carpoids using stratigraphic congruence indices
, LETHAIA, Vol: 42, Pages: 424-437, ISSN: 0024-1164- Author Web Link
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- Citations: 6
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Journal articleFang F, Pain CC, Navon IM, et al., 2009,
A POD goal-oriented error measure for mesh optimization
, International Journal for Numerical Methods in Fluids, Vol: 63, Pages: 185-206, ISSN: 1097-0363The approach for designing an error measure to guide an adaptive meshing algorithm proposed in Power et al. (Ocean Modell. 2006; 15:3-38) is extended to use a POD adjoint-based method, thus facilitating efficient primal and adjoint integration in time. The aim is to obtain a new mesh that can adequately resolve all the fields at all time levels, with optimal (w.r.t. the functional) efficiency. The goal-based method solves both the primal and adjoint equations to form the overall error norms, in the form of a metric tensor. The tetrahedral elements are then optimized so that they have unit size in Riemannian space defined with respect to the metric tensor.This is the first attempt to use POD to estimate an anisotropic error measure. The metric tensor field can be used to direct anisotropic mesh adaptivity. The resulting mesh is optimized to efficiently represent the solution fields over a given time period. The calculation of the error measures is carried out in the reduced space. The POD approach facilitates efficient integration backwards in time and yields the sensitivity analysis necessary for the goal-based error estimates. The accuracy of both the primal and adjoint-reduced models is thus optimized (through the use of anisotropic mesh adaptivity). In addition, the functional for optimizing meshes has been designed to be consistent with that for 4D Var data assimilation.
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Journal articleFang F, Pain CC, Navon IM, et al., 2009,
Reduced-order modelling of an adaptive mesh ocean model
, INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, Vol: 59, Pages: 827-851 -
Journal articleMateus O, Maidment SCR, Christiansen NA, 2009,
A new long-necked 'sauropod-mimic' stegosaur and the evolution of the plated dinosaurs
, Proceedings of the Royal Society B: Biological Sciences, Vol: 276, Pages: 1815-1821 -
Journal articleBrett CE, Allison PA, DeSantis MK, et al., 2009,
Sequence stratigraphy, cyclic facies, and lagerstatten in the Middle Cambrian Wheeler and Marjum Formations, Great Basin, Utah
, Palaeogeography, Palaeoclimatology, Palaeoecology, Vol: 277, Pages: 9-33, ISSN: 0031-0182 -
Journal articleFang F, Pain CC, Navon IM, et al., 2009,
A POD reduced order unstructured mesh ocean modelling method for moderate Reynolds number flows
, Ocean Modelling, Vol: 28, Pages: 127-136, ISSN: 1463-5003 -
Journal articleHalgedahl SL, Jarrard RD, Brett CE, et al., 2009,
Geophysical and geological signatures of relative sea level change in the upper Wheeler Formation, Drum Mountains, West-Central Utah: A perspective into exceptional preservation of fossils
, Palaeogeography, Palaeoclimatology, Palaeoecology, Vol: 277, Pages: 34-56, ISSN: 0031-0182 -
Journal articleFang F, Pain CC, Navon IM, et al., 2009,
A POD reduced-order 4D-Var adaptive mesh ocean modelling approach
, Int. J. Numer. Meth. Fluids, Vol: 60, Pages: 709-732This paper presents a novel approach for inverting a complex ocean model via a proper orthogonal decomposition. The inversion is achieved through the construction of an adjoint model and used to assimilate data in a similar manner to that used in weather forecasting. This is an incredibly important capability for an ocean model, however it is both complex to construct and also can be computationally expensive. The approach proposed here addresses both of these important issues by constructing an efficient and easy to compute adjoint directly from the reduced order model. The approach is demonstrated by inverting for initial conditions in an ocean gyre simulation. The methodology proposed here led directly to the award of a £1M EPSRC grant (EP/I00405X) to develop reduced order and adjoint models for coastal oceanography. Cited 11 times.
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Journal articleSelden PA, Shear WA, Sutton MD, 2008,
Fossil evidence for the origin of spider spinnerets, and a proposed arachnid order
, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Vol: 105, Pages: 20781-20785, ISSN: 0027-8424- Author Web Link
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- Citations: 73
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Journal articlePaul CRC, Allison PA, Brett CE, 2008,
The occurrence and preservation of ammonites in the Blue Lias Formation (Lower Jurassic) of Devon and Dorset, England and their palaeoecological, sedimentological and diagenetic significance
, Palaeogeography, Palaeoclimatology, Palaeoecology, Vol: 270, Pages: 258-272, ISSN: 0031-0182 -
Journal articleAllison PA, Hesselbo SP, Brett CE, 2008,
Methane seeps on an Early Jurassic dysoxic seafloor
, Palaeogeography, Palaeoclimatology, Palaeoecology, Vol: 270, Pages: 230-238, ISSN: 0031-0182 -
Journal articleMaidment SCR, Norman DB, Barrett PM, et al., 2008,
SYSTEMATICS AND PHYLOGENY OF STEGOSAURIA (DINOSAURIA: ORNITHISCHIA)
, JOURNAL OF SYSTEMATIC PALAEONTOLOGY, Vol: 6, Pages: 367-407, ISSN: 1477-2019- Author Web Link
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- Citations: 98
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Journal articleBosence DWJ, Allison PA, 2008,
Biotic – Sediment Interactions; an introduction
, Palaeogeography, Palaeoclimatology, Palaeoecology, Vol: 270, Pages: 217-219, ISSN: 0031-0182
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