PowerPoint Presentation - The Hockey Stick Controversy

Wider filters result in:

ĄStronger smoothing

ĄEffects are like larger a

ĄMore computation

ĄMore ghostcells

filter width 3

filter width 5

filter width 7

filter width 9

Helmholtz inversion is costly!

Common to use a filter instead:

Issue #2: How should we compute the smooth velocity u?

The POP-alpha model