No subject

Does that make sense?

Martin

On Sep 15, 2011, at 10:49 PM, Katherine Quinn wrote:

> Hi all,
> 
> I'm trying to get a bottom pressure anomaly within the MITgcm code instead doing the usual remove the time mean from phihydlow after running an experiment.  The bottom pressure anomaly I need shouldn't have any topography signal in it.  The phihydlow values have a range of approximately -1000 to 1000 and have a clear topography signal.
> 
> As I understand it from past email list messages and the code, phihydlow should be the hydrostatic potential anomaly at the depths in R_low. Given this, I would have expected the time mean of phihydlow to be a linear function of R_low.  When you do the linear fit it's approximately -0.4*(R_low - spatialmean(R_low)).  But the fit to R_low is actually more like a quadratic.  Does anyone know what I need to remove from phihydlow to get a true bottom pressure anomaly with no topography signal?
> 
> thanks, Katy
> 
> -- 
> Katherine J. Quinn
> Atmospheric and Environmental Research, Inc.   voice: 781-761-2234
> 131 Hartwell Avenue                              fax: 781-761-2299
> Lexington, MA  02421-3126                     e-mail: kquinn at aer.com
> 
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