propagation of signals around the shelf

[StephenGriffies]

If anyone doing real work is game, I think the analysis in Section 5 of Hughes et al (2018)

https://doi.org/10.1016/j.pocean.2018.01.011

would be a stellar way to study signals propagating around the shelf in response to wind perturbations. My sense is that this sort of analysis is not simple and yet very powerful.

[julia-neme]

I haven't tried the EOFs yet, but I did some Hovmoller plots of SST, SSS, bottom temperature and bottom salinity along the 1000m isobath. The coordinate is distance from Greenwich Meridian. As a reference this figure shows some distances at some points along the slope:

Before doing the Hovmollers I calculated the annual cycle of the 15 years and subtracted that. However the way I calculated might not be the best ever (averaging all Jan, Feb, etc to create the climatology).

Here is SST (left) and SSS (right):

And bottom temperature (left) and salinity (right):

Hopefully you can zoom in :)

[StephenGriffies]

Seems to be cleaner signal in the bottom properties. Is that correct?

[julia-neme]

It does! Hopefully an EOF a la Hughes et al. 2018 will tell us more?

I also think its interesting how symmetric the up/down cases appear to be.

[StephenGriffies]

By "symmetric" to do you mean the up/down winds kick off waves in the opposite direction or same direction? I seem to see going in the same direction, both to the west.

[julia-neme]

Oh, I meant the sign of the anomalies (warm and salty vs cold and fresh for example)

[StephenGriffies]

Ah yea. I see.