Baigorria, G. A., Chelliah, M., Mo, K. C., Romero, C. C., Jones, J. W., O'Brien, J. J., et al. (2010). Forecasting Cotton Yield in the Southeastern United States using Coupled Global Circulation Models.
Agronomy Journal, 102(1), 187.
Jones, W. B., & O'Brien, J. J. (1996). Pseudo-spectral methods and linear instabilities in reaction-diffusion fronts.
Chaos, 6(2), 219–228.
Abstract: We explore the application of a pseudo-spectral Fourier method to a set of reaction-diffusion equations and compare it with a second-order finite difference method. The prototype cubic autocatalytic reaction-diffusion model as discussed by Gray and Scott [Chem. Eng. Sci. 42, 307 (1987)] with a nonequilibrium constraint is adopted. In a spatial resolution study we find that the phase speeds of one-dimensional finite amplitude waves converge more rapidly for the spectral method than for the finite difference method. Furthermore, in two dimensions the symmetry preserving properties of the spectral method are shown to be superior to those of the finite difference method. In studies of plane/axisymmetric nonlinear waves a symmetry breaking linear instability is shown to occur and is one possible route for the formation of patterns from infinitesimal perturbations to finite amplitude waves in this set of reaction-diffusion equations. (c) 1996 American Institute of Physics.
Dukhovskoy, D. S., Morey, S. L., Martin, P. J., O'Brien, J. J., & Cooper, C. (2009). Application of a vanishing, quasi-sigma, vertical coordinate for simulation of high-speed, deep currents over the Sigsbee Escarpment in the Gulf of Mexico.
Ocean Modelling, 28(4), 250–265.
Yu, P., Morey, S. L., & O'Brien, J. J. (2009). A reduced-dynamics variational approach for the assimilation of altimeter data into eddy-resolving ocean models.
Ocean Modelling, 27(3-4), 215–229.
Dukhovskoy, D. S., Morey, S. L., & O'Brien, J. J. (2006). Influence of multi-step topography on barotropic waves and consequences for numerical modeling.
Ocean Modelling, 14(1-2), 45–60.
Samuelsen, A., & O'Brien, J. J. (2008). Wind-induced cross-shelf flux of water masses and organic matter at the Gulf of Tehuantepec.
Deep Sea Research Part I: Oceanographic Research Papers, 55(3), 221–246.
Arruda, W. Z., Nof, D., & O'Brien, J. J. (2004). Does the Ulleung eddy owe its existence to beta and nonlinearities?
Deep Sea Research Part I: Oceanographic Research Papers, 51(12), 2073–2090.
Jagtap, S. S., Jones, J. W., Hildebrand, P., Letson, D., O'Brien, J. J., Podestá, G., et al. (2002). Responding to stakeholder's demands for climate information: from research to applications in Florida.
Agricultural Systems, 74(3), 415–430.
Podestá, G., Letson, D., Messina, C., Royce, F., Ferreyra, R. A., Jones, J., et al. (2002). Use of ENSO-related climate information in agricultural decision making in Argentina: a pilot experience.
Agricultural Systems, 74(3), 371–392.
Belyaev, K. P., Tanajura, C. A. S., & O'Brien, J. J. (2001). A data assimilation method used with an ocean circulation model and its application to the tropical Atlantic.
Applied Mathematical Modelling, 25(8), 655–670.