Posted by Eric Chassignet on November 07, 2000 at 07:51:27:
This is a very nice medium to present results such as the ones
presented in the Waseda et al. poster which does include a fair
amount of animations.
- The numerical experiment shows nicely that an anticyclonic eddy
is able to triger a meander in the Kuroshio.
- I would have liked to see a stronger discussion of the observations:
1. How is the mean that is added to the TOPEX anomalies calculated?
Are the results strongly sensitive to its choice?
2. You show an example that match the numerical results. The SSH
movie seems to show that other scenarios may also take place.
It would be nice to document each event and the possible source.
- Similar meanders (albeit smaller) are observed in the Gulf Stream.
They are often attributed to interaction with the Charleston bump.
Is there a similar topographic feature along the coast that
could generate a meander in the Kuroshio?
- The numerical simulations are quite viscous (i.e. not eddy activity).
Western boundary current can be unstable (Berloff and McWilliams, JPO
2000) and generate meanders as observed. Have you tried adding a
small perturbation in the boundary current transport? This can
also create a meander (see Stern and Chassignet, 2000, JMR).
- Comparison to the Gulf Stream. Why is such an extreme beahvior
present in the Kuroshio and not in the Gulf Stream?
Overall, I enjoyed the poster. Nice results.... Thanks!