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Re: Depth of the thermocline




Park and Brian JPO (2000), 30:590-605 give a method for
estimating thermocline thickness. This method is less 
sensitive to noise in the temperature soundings than
simply finding the max of the derivative. But it is 
indirect.

The following script reproduces their method:

! a script that makes a variable tcline which contains an
! estimate of the thermocline thickness as given by
! the method of Park and Brian, JPO (2000), 30:590-605

let tempfill=temp[X=@fln]
let tm=tempfill[Z=@min]
let tdev=tempfill - tm
let tint = tdev[Z=@din]
let zint = tdev * Z
let ztint = zint[Z=@din]
let tcline = ztint/tint


Note that for an exponential profile this will yield the
e-folding depth scale, for a box profile this will yield 
half the box depth.


-- 
-----------------------------------------------
Halldor Bjornsson,
Program in Atmosphere and Ocean Science &
Geophysical Fluid Dynamics Laboratory
Princeton University, Princeton, NJ USA
email: hnb@gfdl.gov
-----------------------------------------------


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