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Metrics: Compute EKE/variance metrics #2

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kdrushka opened this issue Nov 20, 2020 · 2 comments
Open

Metrics: Compute EKE/variance metrics #2

kdrushka opened this issue Nov 20, 2020 · 2 comments

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@kdrushka
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  • Resolved KE (MKE) as a function of grid size; SLA variance and EKE
  • Sub-grid KE (EKE) as a function of grid size; SLA variance and EKE
  • Ratio of resolved to sub-grid KE (EKE/MKE); SLA variance and EKE
@kdrushka kdrushka changed the title Compute metrics Compute EKE/variance metrics Nov 20, 2020
@sylviacole
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(Experimenting with comments...)
Add a timescale option to these to separate standing vs. transient eddies in the sub-grid component. How much EKE is transient (timescales less than 1 year) vs standing (greater than 1 year). MKE should be diagnosed similarly or not?

@sylviacole sylviacole changed the title Compute EKE/variance metrics Metrics: Compute EKE/variance metrics Nov 20, 2020
@jakesteinberg
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  • MKE as a function of filter scale (done)
  • EKE as a function of filter scale (done)
  • ratio of EKE/MKE (or sub-grid/resolved) (done)
  • all can be recomputed for various filter types (sharp, gaussian, boxcar)
  • filter can also vary with local delta longitude or local deformation scale (although not energy preserving at this point I think)

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3 participants
@jakesteinberg @kdrushka @sylviacole