[MITgcm-support] documentation for pkg/smooth

Mon Apr 6 19:58:42 EDT 2015

Dear MITgcmers,
is any documentation for pkg/smooth available?
In particular, I am trying to understand how pkg/smooth parameters relate
the (2 k_1 T)^0.5 length scale discussed in the Weaver and Courtier paper:
http://mitgcm.org/~gforget/pdfs/weavercourtier01.pdf

Or more precisely, what is the half-power bandwidth
of a filter based on following parameters:
&SMOOTH_NML
smooth2Dnbt(1)=5000
smooth2D_Lx0(1)=100000.
smooth2D_Ly0(1)=100000.
smooth2Dtype(1)=1
smooth2Dsize(1)=0
smooth2Dfilter(1)=0

Does above define a lowpass filter for scales greater than 100 km,
200 km, 628 km, or some other value?

Thanks, Dimitris

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