[ferret_users] How to calculate 0.016Z in ferret

To: ferret_users@xxxxxxxx
Subject: [ferret_users] How to calculate 0.016Z in ferret
From: 夏长水 <xiacs@xxxxxxxxxx>
Date: Wed, 18 Nov 2015 21:03:34 +0800 (GMT+08:00)
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Dear Ferreters,

I have a model result data in netcdf format containing the temperature and salinity in Z coordinate. I want calculate sound speed from 0-1000m using the temperature (t) and salinity (S) using following formula:

c(Z)=1492+4.6t+.....+(1.34-0.01t)*(S-35)+0.016Z

Z is the water depth from 0-1000m.

My question how to calculate 0.016Z in ferret ?

Thank you in advance.

Changshui

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