Articles | Volume 20, issue 1
Research article 16 Jan 2013
Research article | 16 Jan 2013
Analysis of asymmetries in propagating mode-2 waves
J. Olsthoorn et al.
No articles found.
Rishiraj Chakraborty, Aaron Coutino, and Marek Stastna
Nonlin. Processes Geophys., 26, 307–324,Short summary
In this paper, we highlight a specific example of large-scale flows. We discuss a graph-theory-based Lagrangian technique for identifying regions of strong mixing (in the sense of diffusion) in the flow and compare it to previous Lagrangian approaches used in this context.
David Deepwell, Marek Stastna, and Aaron Coutino
Nonlin. Processes Geophys., 25, 217–231,Short summary
We have used numerical simulations to investigate the impact that rotation has on large waves existing internally in the ocean. In coastal regions these waves become trapped along the coast because of rotation. We have found that this trapping results in an adjustment of the form of the waves. The adjustment leads to heightened mixing along the coast, which has implications for nutrient and chemical distribution.
Chengzhu Xu and Marek Stastna
Nonlin. Processes Geophys., 25, 1–17,Short summary
This work contributes to the understanding of the interaction between internal waves of different length scales. A key finding is that, when the disparity in length scales between the participating waves is large, the interaction may lead to an almost complete destruction of the waves that have a relatively smaller length scale. This result suggests that the wavelengths of internal waves observed in the coastal oceans are likely to be deficient in short waves.
Aaron Coutino and Marek Stastna
Nonlin. Processes Geophys., 24, 61–75,Short summary
We have re-examined the classical geostrophic adjustment problem, where a disturbance of a density stratification is released from rest in a rotating frame of reference, from a numerical point of view. This has enabled us to consider the governing equations without approximations. We show that both the waves generated and the remaining state exhibit nonlinear effects. Due to advances in available computational power, we can now revisit classical problems and solve them completely.