Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Maddison, James"'
An automated framework is presented for the numerical solution of optimal control problems with PDEs as constraints, in both the stationary and instationary settings. The associated code can solve both linear and non-linear problems, and examples for
Externí odkaz:
http://arxiv.org/abs/2408.17312
There is an increasing interest in mesoscale eddy parameterizations that are scale-aware, normally interpreted to mean that a parameterization does not require re-tuning of parameters as the model resolution changes. Here we examine whether Gent--McW
Externí odkaz:
http://arxiv.org/abs/2306.08988
Autor:
Maddison, James R.
Automated code generation allows for a separation between the development of a model, expressed via a domain specific language, and lower level implementation details. Algorithmic differentiation can be applied symbolically at the level of the domain
Externí odkaz:
http://arxiv.org/abs/2305.09568
Acute sensitivity of global ocean circulation and heat content to eddy energy dissipation time-scale
The global ocean overturning circulation, critically dependent on the global density stratification, plays a central role in regulating climate evolution. While it is well-known that the global stratification profile exhibits a strong dependence to S
Externí odkaz:
http://arxiv.org/abs/2204.02074
Stochastic models of varying complexity have been proposed to describe the dispersion of particles in turbulent flows, from simple Brownian motion to complex temporally and spatially correlated models. A method is needed to compare competing models,
Externí odkaz:
http://arxiv.org/abs/2201.01581
The global stratification and circulation of the ocean and their sensitivities to changes in forcing depend crucially on the representation of the mesoscale eddy field. Here, a geometrically informed and energetically constrained parameterization fra
Externí odkaz:
http://arxiv.org/abs/1802.02816
In this paper we present a new technique for efficiently implementing Large Eddy Simulation with the Discontin- uous Galerkin method on unstructured meshes. In particular, we will focus upon the approach to overcome the computational complexity that
Externí odkaz:
http://arxiv.org/abs/1610.06875
The large-scale features of the global ocean circulation and the sensitivity of these features with respect to forcing changes are critically dependent upon the influence of the mesoscale eddy field. One such feature, observed in numerical simulation
Externí odkaz:
http://arxiv.org/abs/1610.00621
Autor:
Maddison, James R.
Numerical simulations of atmospheric and oceanic flows are fundamentally limited by a lack of model resolution. This thesis describes the application of unstructured mesh finite element methods to geophysical fluid dynamics simulations. These methods
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.547516